Exhibit 99.5

CONFIDENTIAL PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED PURSUANT TO REGULATION
240.24B-2B OF THE SECURITIES EXCHANGE ACT OF 1934. [*] INDICATES OMITTED
MATERIAL THAT IS THE SUBJECT OF A CONFIDENTIAL TREATMENT REQUEST AND IS FILED
SEPARATELY WITH THE COMMISSSION.


                               SERVICE AGREEMENT

This Service Agreement (the "Agreement") is made and entered into as of this
_23_ day of November  1998 ("Effective Date"), by and between Ribozyme
            --------
Pharmaceuticals Incorporated, a Delaware corporation with offices located at
2950 Wilderness Place, Boulder, CO 80301 (hereinafter "RPI") and ATUGEN
Biotechnology GmbH organized under the laws of Germany, and having its principal
office in Berlin, Germany (hereinafter ATUGEN) (together, the "Parties").

WHEREAS, RPI is engaged in research, development and commercialization of
certain patented and/or proprietary nucleic acid technologies for therapeutic,
agricultural, animal health, diagnostic and functional genomics applications
(the " RPI Technology");

WHEREAS, ATUGEN is interested in conducting research, development and
commercialization activities in the field of Target Validation and Discovery
(TVD), as more fully described in the Business Plan of July 30, 1998, and
amendments thereof and a certain Participation Agreement which is incorporated
by reference herein; and

WHEREAS, ATUGEN desires to obtain from RPI, and RPI is willing to provide,
certain advice, consultation and other services in the field of Target
Validation and Discovery.

NOW THEREFORE, in consideration of the mutual covenants herein contained and
intending to be legally bound hereby, the Parties hereto agree as follows:


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Section 1

                                  DEFINITIONS


1.1.  "Business Development Team" shall mean RPI employees currently working in
      ---------------------------
      the business development group of RPI which currently includes four
      professionals and two support staff.

1.2.  "COGS" means RPI's fully-burdened  costs of supplying Nucleic Acid
       ----
      Molecules (including costs of raw materials, direct labor, quality control
      testing, labeling, packaging and shipping costs) calculated in accordance
      with RPI's accounting methods consistently applied in compliance with U.S.
      generally accepted accounting principles (GAAP).

1.3.  "Collaborator" shall mean any entity or person engaged in an active
       ------------
      research and development collaboration with ATUGEN in its Target
      Validation and Discovery program.

1.4.  "Confidential Information" shall mean confidential and proprietary
       ------------------------
      information of ATUGEN or RPI, including without limitation scientific
      data, technical reports and business information, disclosed to the other
      Party, provided that such information is in writing and marked
      "CONFIDENTIAL" or with a similar legend, or is disclosed orally and is
      reduced to writing and marked "CONFIDENTIAL" or with a similar legend
      within 30 days after such disclosure.

1.5.  "Delivery Reagents" shall mean RPI reagents useful for the delivery of
       -----------------
      Nucleic Acid Molecules to cells that are covered under RPI Technology.

1.6.  "Existing Licensee" shall mean third parties with whom RPI has already
       -----------------
      granted certain licenses under RPI Technology in the Field and are listed
      in the enclosed Appendix A.

1.7.  "Expressed Ribozyme" shall mean a DNA or RNA vector encoding a Ribozyme
       ------------------
      and intended to be used to express such Ribozyme in cells.

1.8.  "Field" shall mean any and all applications of Nucleic Acid Molecules, in
       -----
      the field of human therapeutic Target Validation and Discovery, transgenic
      animal technology, Chip Technology and associated bioinformatics.  Such
      Field will include functional genomics or gene function identification in
      human systems, in which the function of a gene is determined by using the
      Nucleic Acid Molecule.  The Field shall also include use of the Nucleic
      Acid Molecules to validate a human therapeutic target.

1.9.  "License Agreements" shall mean the License Agreement between RPI and
       ------------------
      ATUGEN dated November 23, 1998; a Manufacturing and Supply Agreement and
      Sublicense


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       Agreement and any amendments thereof, all of which are incorporated by
       reference herein.

1.10.  "Lipid Market Price" shall mean the average arms-length retail selling
        ------------------
       cost of the two market leading reagents for cell-based transfection.
       These two market leading reagents shall be identified based on mutual
       agreement of the Parties.

1.11.  "Nucleic Acid Molecules" shall mean Expressed Ribozymes or Synthetic
        ----------------------
       Ribozymes, GeneBloc reagents or nucleic acid probes. The term Nucleic
       Acid Molecules, as used herein, shall not include (i) nucleic acid
       molecules used for cloning, sequencing or amplification purposes, or
       (ii) protein-encoding or peptide-encoding genes.

1.12.  Nucleic Acid Product" means any substance that (i) is or is intended to
       --------------------
       be developed and sold commercially, and (ii) contains a non-protein or
       non-peptide encoding oligonucleotide, including but not limited to, a
       Nucleic Acid Molecule.

1.13.  "Oligonucleotide Market Price" shall mean the price determined by mutual
        ----------------------------
       agreement of the parties as the fair market price for an oligonucleotide
       by reference to a Nucleic Acid Molecule available from third party price
       lists comprising greater than fifty percent (50%) 2'-O-alkyl nucleotide
       modification, an appropriate 5'- and/or 3'-cap modification and a length
       equivalent to the Nucleic Acid Molecule to be supplied.

1.14   "Participation Agreement" shall mean the participation agreement of
       August 24, 1998, and all amendments thereof, executed by ATUGEN and
       founders of ATUGEN, including RPI.

1.15   "Prospective Licensee" shall mean third parties with whom RPI is
        --------------------
       currently discussing the licensing of certain RPI Technology in the Field
       and are listed in the enclosed Appendix B.

1.16.  "Ribozyme" shall mean a Nucleic Acid Molecule able to cause catalytic
        --------
       cleavage of itself or another molecule independent of protein.

1.17.  "RPI Field" shall mean any and all applications of Nucleic Acid
        ---------
       Molecules, including but not limited to, as a human or animal therapeutic
       or diagnostic product or an agricultural product but excluding any
       application of Nucleic Acid Molecules in the field of Target Validation
       and Discovery (TVD).

1.18.  "Synthetic Ribozyme" shall mean chemically synthesized Ribozymes.
        ------------------


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1.19.  "Target" means a gene or partial sequence thereof, and those elements
        ------
       necessary for its expression or regulation, or its transcription,
       translation, or replication product or intermediates or portions thereof.

1.20.  "Target Validation and Discovery (TVD)" means a research program in which
        -------------------------------------
       a nucleic acid molecule, including Nucleic Acid Molecules, is used to
       determine the utility of a gene or gene product, as a therapeutic or a
       therapeutic target, and/or for the discovery of genes or gene products as
       potential therapeutics or therapeutic targets or as tools for the
       identification of potential therapeutics or therapeutic targets.  Such a
       program is usually performed on behalf of a third party Collaborator, but
       may be performed solely for ATUGEN's benefit or may consist of technology
       rights which are licensed or sold to third parties for use in their own
       non-Nucleic Acid-Molecule-based product development programs outside the
       RPI Field.


Section 2
                       SCOPE OF RPI ACTIVITIES FOR ATUGEN

2.1  Activities. RPI will use reasonable best efforts to provide ATUGEN with all
     ----------
     the advice, consulting and other services in the Field reasonably requested
     by ATUGEN, ("RPI Activities"). The RPI Activities shall include, but shall
     not be limited to, the following:

2.1.1.  RPI shall transfer it's Target Validation and Discovery (TVD) business
        to ATUGEN, subject to RPI's right to use the TVD program to the extent
        that the License Agreements so allows
2.1.2.  RPI shall transfer to ATUGEN RPI technology relating to the use of
        Nucleic Acid Molecules in the Field.
2.1.3.  RPI will supply to ATUGEN Nucleic Acid Molecules for use in the Field
        under the provisions of the License Agreements.
2.1.4.  RPI will supply to ATUGEN its Delivery Reagents for use in delivering
        the Nucleic Acid Molecules to a range of cell types in the Field under
        the provisions of the License Agreements.
2.1.5.  RPI shall provide financial support to ATUGEN in the amount of two
        million U.S. dollars (US $2 million) under the terms of the
        Participation Agreement, at the Closing of the Participation Agreement.

2.1.6.  RPI shall provide the following Scientific Consulting and Management
        Support to ATUGEN:

2.1.6.1.  RPI's Business Development Team will devote up to fifty percent (50%)
          of it's time, during the first twelve (12) months from September 1,
          1998, to provide Business Development support to ATUGEN under the
          terms of this Agreement. ATUGEN may opt to extend this term of support
          for an

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          additional three-(3) months by requesting RPI for such an extension in
          writing prior to the expiration of the nine month period.

2.1.6.2. RPI's Dr. Ralph E. Christoffersen (President and CEO) and Mr. Larry
         Bullock (CFO) will spend up to twenty five percent (25%) of their time,
         during the first nine (9) months from September 1, 1998, to provide
         management support to ATUGEN under the terms of this Agreement. Such
         Management support will include hiring senior and other personnel and
         facilitating a smooth transition and technology transfer to ATUGEN. Dr.
         Christoffersen and Mr. Bullock will make all reasonable efforts,
         including possibly spending more time (greater than 25%) to meet the
         management needs of ATUGEN during this nine (9) month period or for a
         longer period of time if necessary as mutually agreed to by the
         Parties. Neither Dr. Christoffersen nor Mr. Bullock will be deemed an
         ATUGEN employee.

2.1.6.3. RPI's Dr. Nassim Usman (Vice President of Research) will spend up to
         twenty five percent (25%) of his time, during the first nine (9) months
         from September 1, 1998, to provide Research and Development management
         support including a smooth transition and technology transfer, under
         the terms of this Agreement. Such Management support will also include
         hiring senior and other personnel necessary for ATUGEN. ATUGEN may opt
         to extend this term of support for an additional three-(3) months by
         requesting RPI for such an extension in writing prior to the expiration
         of the nine month period. Dr. Usman at no time will be deemed an ATUGEN
         employee.

2.1.6.4. RPI's Dr. James Thompson (Associate Director of Functional Genomics)
         will become an ATUGEN employee upon commencement of ATUGEN's
         operations. Dr. Thompson will remain in the Boulder, Colorado facility
         and will not relocate to Berlin. The details of Dr. Thompson's
         employment with ATUGEN will be governed under a separate Employment
         Contract with ATUGEN.

2.1.6.5. RPI and its personnel will make all reasonable efforts to facilitate
         the transfer of necessary technology and provide necessary services to
         ATUGEN as provided herein.

2.1.6.6. For purposes of clarification, ATUGEN and RPI shall based on mutual
         agreement determine the timing of the services to be provided by the
         foregoing personnel, including the time, place and amount of services
         to be rendered, up to the limits prescribed herein.

2.1.7.  Existing Licensee Transfer.
        ---------------------------

        RPI will transfer its contract with the Existing Licensees (see Appendix
        A) to ATUGEN under the following terms, provided such transfer is
        legally possible and the Existing Licensees agree to such a transfer.
        RPI agrees to use its best efforts to obtain such approvals. One or more
        representatives from ATUGEN, Berlin offices may have an opportunity to
        assist RPI in its efforts to obtain the approvals from Existing
        Licensees.




2.1.7.1.  Beginning on the Effective Date of this Agreement and for a period of
          five years thereafter, RPI shall receive all milestone payments,
          success


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          fees, and royalties provided under the contracts with each of the
          Existing Licensees. ATUGEN will receive all research and development
          payments under these contracts, provided ATUGEN will hire certain RPI
          employees in Boulder, Colorado (the minimum number of such employees
          to be based on contractual requirements in the agreements between RPI
          and the Existing Licensees who have transferred to ATUGEN), and
          provide necessary resources required for performance under the
          agreements with the Existing Licensees. Such RPI employees hired by
          ATUGEN under this section 2.1.7.1 will remain in Boulder, Colorado
          facility and not relocate to Berlin, Germany.

2.1.7.2.  After the fifth anniversary of the Effective Date of this Agreement,
          RPI shall receive all milestone payments, success fees and royalty
          payments relating to the development and commercialization of Nucleic
          Acid Products provided under the contracts with each of the Existing
          Licensees. ATUGEN will receive all other payments under these
          contracts.

2.1.8.    Prospective Licensee.  For the contracts with the Prospective
          ---------------------
          Licensees listed in Appendix B that are formalized by August 30, 1999,
          or a later date designated based on mutual agreement of the Parties,
          ATUGEN will pay to RPI a [*] of the total transaction value received
          by ATUGEN from each such Prospective Licensee. To avoid double
          payment, the success fee, under this Section 2.1.8, will not be paid
          to RPI on any amounts for which RPI shall be directly reimbursed under
          this Agreement or the supply provisions of the License Agreement.

2.1.9.    The scope of activities to be performed by RPI for ATUGEN is strictly
          limited to the above-mentioned services in this section unless
          otherwise mutually agreed. Under no circumstances will RPI be entitled
          to enter into business activities, such as negotiating contracts for
          ATUGEN with third parties, for or on behalf of ATUGEN beyond the
          auxiliary functions after the Effective Date of this contract.
          Notwithstanding the foregoing, RPI will provide the services provided
          under Sections 2.1.6.1-2.1.6.3 above, on behalf of and for ATUGEN.

Section 3

                  REMUNERATION FOR RPI AND RELATED PROVISIONS

3.1.  Calculation of Fees.  ATUGEN shall make payments to RPI according to the
      -------------------
      following provisions:


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3.1.1.  For  the services described under Sections 2.1.6.1, 2.1.6.2 and 2.1.6.3
        above, ATUGEN will pay to RPI an amount equal [*] the actual salary of
        each RPI executive (as set out in the financial statements of RPI filed
        with the Securities and Exchange Commission (SEC)) performing services
        thereunder, prorated to reflect time actually spent performing services
        for ATUGEN during any given billing period. This payment, which takes
        into account and fully compensates RPI for the additional costs (like
        bonus, secretarial support, insurance etc.) incurred by RPI in
        connection with the rendering of these services, shall be the only fee
        to which RPI shall be entitled in connection with Sections 2.1.6.1,
        2.1.6.2 and 2.1.6.3.

3.1.2.  For the services described under Section 2.1.6.5 above, ATUGEN will pay
        to RPI an amount equal to the billing rate of fully burdened cost per
        full-time equivalent per year for each RPI employee, prorated to reflect
        time actually spent performing services for ATUGEN during any given
        billing period. This payment, which takes into account and fully
        compensates RPI for the additional costs (like bonus, secretarial
        support, insurance etc.,) incurred by RPI in connection with the
        rendering of these services, shall be the only fee to which RPI is
        entitled in connection with Section 2.1.6.5.

3.1.3.  RPI shall not be entitled to any payments for services rendered pursuant
        to Sections 2.1.3 and 2.1.4 other than those fees to which it is
        entitled pursuant to the License Agreements.

3.1.4.  For the services set forth in Sections 2.1.1, 2.1.2 and 2.1.6.4 or
        otherwise requested by ATUGEN, ATUGEN shall reimburse RPI for its Costs
        and Other Expenses (as defined in Section 3.2 below) incurred in the
        performance of its obligations under those sections.

3.2.  Costs. Under this Agreement Costs shall mean all costs incurred by RPI
      -----
      directly or indirectly in connection with the above-mentioned services
      (i.e. rent, wages, travel expenses and the like), [*] plus any applicable
      Value Added Tax (VAT), such [*] being intended to cover general
      administrative expenses incurred in connections with such costs). Costs
      shall not include out-of-pocket expenses, such as payments to advertising
      agencies, promotion agencies and the like ("Other Expenses"). These Other
      Expenses will be reimbursed by ATUGEN to RPIbut shall shall not be subject
      to an additional[*].

3.3.  Records. RPI shall record all costs actually incurred on the basis of
      -------
      completed costs using a recognized cost accounting method. All costs shall
      be allocated to either RPI or ATUGEN, in accordance with such recognized
      cost accounting method, based on the allocation key that is most
      commensurate with the underlying activity. RPI shall document all
      procedural instructions for the recording, determination and allocation of
      costs. Such records shall be kept at RPI's principal place of business and
      shall be retained


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     by RPI for three (3) years following the end of the calendar year to which
     such books and records pertain.

3.4  Audit Rights. ATUGEN shall be entitled to retain, at its own expense, an
     ------------
     independent accounting firm to conduct one (1) audit per calendar year of
     RPI's books and records of account regarding invoices for services provided
     by RPI under this Agreement, for the sole purpose of verifying the accuracy
     of invoices and RPI's compliance with the terms and conditions of this
     Agreement.  Such audit shall be conducted during RPI's normal business
     hours and after at least ten (10) days written notice to RPI requesting the
     audit.

3.5  Annual Estimates.  Prior to the beginning of each fiscal year, RPI and
     ----------------
     ATUGEN shall collaborate to establish an annual non-binding estimation of
     the amount of services RPI will perform under this Agreement during such
     fiscal year.  The budget for 1999 shall be agreed upon within sixty (60)
     days from the Effective Date of this Agreement.

3.6  Billing Cycle.  RPI shall provide to ATUGEN invoices for services no more
     -------------
     than once per month and no less than twice per year.  Each such invoice
     shall be due and payable thirty (30) days following its receipt by ATUGEN.

Section 4
                                CONFIDENTIALITY

4.1  Any Party receiving any Confidential Information from the other Party in
     connection with the execution, delivery and performance of this Agreement
     shall keep, and shall cause its affiliates, officers, employees,
     technicians, advisors and consultants and other agents to keep, all such
     Confidential Information in confidence and shall not disclose such
     Confidential Information to third parties, except in connection with a
     license, sublicense or sale permitted hereunder requiring such disclosure
     and containing appropriate confidentially provisions.

4.2   The obligations of confidentiality and nonuse set forth in this Agreement
      shall not apply to any portion of the Confidential Information which:

      (a)  is or becomes public or available to the general public otherwise
           than through the act or default of the receiving Party or its
           affiliates or their employees, advisors or consultants; or
      (b)  is obtained by the receiving Party from a third party without a duty
           of confidentiality who is lawfully in possession of such Confidential
           Information and is not subject to an obligation of confidentiality
           owed to the other Party or others; or


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      (c)  is known, as shown by competent evidence,  by the receiving Party or
           any of its affiliates prior to disclosure under this Agreement and
           was not obtained or derived directly or indirectly from the other
           Party; or
      (d)  is disclosed by the receiving Party or its affiliates pursuant to a
           requirement of law, provided that such Party has complied with the
           provisions set forth in paragraph 4.3.

4.3.  If the receiving Party or any of its Affiliates becomes legally required
      to disclose any Confidential Information, the receiving Party shall give
      the other Party to this Agreement prompt notice of such fact so that such
      Party may obtain a protective order or other appropriate remedy concerning
      any such disclosure and/or waive compliance with the non-disclosure
      provisions of this Agreement. The receiving Party and its Affiliates will
      fully cooperate with the other Party to this Agreement in connection with
      such Party's efforts to obtain any such order or other remedy. If any such
      order or other remedy does not fully preclude disclosure or the other
      Party to this Agreement waives such compliance, the receiving Party and
      its affiliates will make such disclosure only to the extent that such
      disclosure is legally required and will use its best efforts to have
      confidential treatment accorded to the disclosed Confidential Information.
      Notwithstanding the foregoing provisions, ATUGEN will be free to disclose
      the terms of this Agreement to a third party, including ATUGEN's
      Collaborators and potential investors, under confidentiality with such
      third parties.


4.4   Term.  The obligations of ATUGEN and RPI under this Section 4 shall
      ----
      continue for a period of five (5) years after the expiration of this
      Agreement.

4.5   Return of Materials.  Upon expiration or termination of this Agreement,
      -------------------
      each Party shall return all copies of Confidential Information disclosed
      to such Party, and all other materials provided to such Party under this
      Agreement; provided that one copy of such Confidential Information and
      such materials may be retained for archival or legal purposes only.

Section 5
                         LIABILITY AND INDEMNIFICATION

5.1.  ATUGEN agrees to indemnify, hold harmless and defend RPI, its officers,
      employees, and agents, against any and all claims, suits, losses, damages,
      costs, fees, and expenses asserted by third parties, both government and
      non-government, resulting from or arising out of the exercise of this
      Agreement. ATUGEN shall not be responsible for the negligence or
      intentional wrong-doing of RPI and RPI shall indemnify and hold harmless
      ATUGEN and its agents for such actions if necessary.


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5.2.  ATUGEN shall maintain in force at its sole cost and expense, with
      reputable insurance companies, general liability insurance and products
      liability insurance coverage in an amount reasonably sufficient to protect
      against liability under paragraph 5.1 above. RPI shall have the right to
      ascertain from time to time that such coverage exists, such right to be
      exercised in a reasonable manner.

5.3.  Force Majeure.  The Parties will not be liable for any failure to perform
      -------------
      as required by this Agreement, to the extent such failure to perform is
      caused by any reason beyond the control of either Party, or by reason of
      any of the following: labor disturbances or disputes of any kind,
      accidents, governmental policy, civil disorders, acts of aggression, acts
      of God, energy or other conservation measures, failure of utilities,
      mechanical breakdowns, material shortages, disease or similar occurrences.

Section 6
                         REPRESENTATIONS AND WARRANTIES

6.1. Representations of RPI. RPI represents that RPI has the legal right,
     ----------------------
     authority and power to enter into this Agreement and meet the obligations
     set forth herein. RPI further represents that it has not previously granted
     other than to Existing Licensees, and will not grant to any third party
     during the term of this agreement, any rights under the RPI Technology that
     are inconsistent with the rights granted to ATUGEN herein in the Field. RPI
     further declares that it has experience in providing the services described
     under Section 2 of this Agreement and will use reasonable diligence in
     providing these services.

6.2  Representations of ATUGEN.  ATUGEN represents and warrants that ATUGEN has
     -------------------------
     the legal right, authority and power to enter into this Agreement and meet
     the obligations set forth herein.

6.3  NOTHING IN THIS AGREEMENT SHALL BE DEEMED TO BE A REPRESENTATION OR
     WARRANTY BY RPI OF THE VALIDITY OF ANY OF THE PATENTS OR THE ACCURACY,
     SAFETY, EFFICACY, OR USEFULNESS, FOR ANY PURPOSE, OF ANY INVENTION. RPI
                                                              ---------
     SHALL HAVE NO OBLIGATION, EXPRESS OR IMPLIED, TO SUPERVISE, MONITOR, REVIEW
     OR OTHERWISE ASSUME RESPONSIBILITY FOR THE PRODUCTION, MANUFACTURE,
     TESTING, MARKETING OR SALE OF ANY LICENSED PRODUCT, AND RPI SHALL HAVE NO
     LIABILITY WHATSOEVER TO ATUGEN OR ANY THIRD PARTIES FOR OR ON ACCOUNT OF
     ANY INJURY, LOSS, OR DAMAGE, OF ANY KIND OR NATURE, SUSTAINED BY, OR ANY
     DAMAGE ASSESSED OR ASSERTED AGAINST, OR ANY OTHER LIABILITY INCURRED BY OR
     IMPOSED UPON ATUGEN OR ANY OTHER PERSON OR ENTITY, ARISING OUT OF OR IN
     CONNECTION WITH OR RESULTING FROM:

          a.   the production, use, or sale of any RPI Technology;

          b.   the use of any aspect of inventions; or



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          c.   any advertising or other promotional activities with respect to
               any of the foregoing.

Section 7
                              TERM AND TERMINATION

7.1.  Term. The Term of this Agreement shall commence on the Effective Date and
      ----
      continue until terminated as provided in this Section.

7.2.  Termination for Cause.  Either Party shall have the right to terminate
      ---------------------
      this Agreement following any material breach or default in performance
      under this Agreement by the other Party upon sixty (60) days prior written
      notice by certified mail to the breaching Party specifying the nature of
      the breach or default. Unless the breaching Party has either cured or
      taken such steps as may be reasonably expected to cure the breach or
      default prior to the expiration of such sixty (60) day period, the non-
      breaching Party, at its sole option, may terminate this Agreement upon
      written notice to the breaching Party. Termination of this Agreement shall
      become effective upon receipt of such notice by the breaching Party.

7.3.  Rights in Law or Equity. Except as otherwise expressly provided herein,
      ------------------------
      termination by either Party pursuant to this Section 7 shall not prejudice
      any other remedy that a Party might have in law or equity, except that
      neither Party may claim compensation for lost opportunity or like
      consequential damages arising out of the fact of such termination.

7.4.  Termination for Insolvency.  To the extent permitted by applicable law,
      --------------------------
      either Party may terminate this Agreement immediately upon written notice
      without opportunity to cure if the other Party becomes the subject of a
      voluntary or involuntary petition in bankruptcy or any proceeding relating
      to insolvency, receivership, liquidation, or composition for the benefit
      of creditors, if such petition or proceeding is not dismissed with
      prejudice within ninety (90) days after filing.

7.5.  Termination at will:  RPI has the right to terminate this Agreement at the
      -------------------
      end of each calendar year after the completion of the first year from the
      Effective Date, provided it gives ATUGEN a six (6) month written notice
      prior to termination.

7.6.  Effect of Termination  In the event of the termination of this Agreement
      ---------------------
      neither party shall have any further obligations under this agreement
      except as set forth in Section 7.7.

7.7   Survival.  The following Sections of this Agreement shall survive
      --------
      expiration or termination of this Agreement: 4, 5 7.7 and 8.



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Section 8
                               GENERAL PROVISIONS

8.1.  Dispute Resolution
      ------------------

      8.1.1 Any disputes arising between the Parties relating to, arising out
            of or in any way connected with this Agreement or any term or
            condition hereof, or the performance by either Party of its
            obligations hereunder, whether before or after termination of this
            Agreement, shall be promptly presented to the Chief Executive
            Officer of RPI and the Chief Executive Officer of ATUGEN (or their
            designees) for resolution. If these individuals cannot promptly
            (within 30 days) resolve such disputes, then such dispute shall be
            finally resolved by binding arbitration. Whenever a Party shall
            decide to institute arbitration proceedings, it shall give written
            notice to that effect to the other Party. The Party giving such
            notice shall refrain from instituting the arbitration proceedings
            for a period of thirty (30) days following such notice.

      8.1.2 In the event that arbitration is instituted by ATUGEN, such
            arbitration shall be held in Berlin, Germany. In the event that
            arbitration is initiated by RPI, such arbitration shall be held in
            Berlin, Germany. Judgment on any award rendered by the arbitrator
            may be entered in any court having jurisdiction thereof. The Parties
            agree that, any provision of applicable law notwithstanding, they
            will not request, and the arbitrator shall have no authority to
            award, punitive or exemplary damages against any Party.

      8.1.3 Notwithstanding the above, in the event of a dispute concerning
            inventorship between RPI and ATUGEN, the Parties hereby agree that
            each will attempt to resolve such dispute by agreement between two
            U.S. patent attorneys (one chosen by each Party) according to U.S.
            patent laws. If those two attorneys fail within 30 days to reach a
            resolution, then the Parties agree to reach a binding agreement by
            negotiation between those two attorneys and a third patent attorney
            chosen by those two attorneys. The three attorneys will reach a
            binding agreement with regard to the dispute by a majority vote of
            the three attorneys. Such dispute will be resolved in this manner
            within 60 days from the date of the initial dispute.

8.2   No Use of Name.  Neither Party shall use the name of the other in any form
      --------------
      of advertising publicity or otherwise, any trade-name, personal name,
      trademark, trade device, service mark, symbol, or any abbreviation,
      contraction or simulation thereof owned by the other party; or public
      promotion without the prior written approval of the other, or


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      represent, either directly or indirectly, that any product or service of
      the other party is a product or service of the representing party or that
      it is made in accordance with or utilizes the information or documents of
      the other party.

8.3   Governing Law.  This Agreement shall be governed by, construed, and
      -------------
      interpreted in accordance with the laws of Germany, including but not
      limited to, export control regulations regarding commodities and technical
      data/information. Parties specifically agree not to export or re-export
      any commodities and/or data/information in violation of any applicable
      U.S.A. or German laws and/or regulations.

8.4   Assignment.  This Agreement may not be assigned or transferred by any of
      ----------
      the Parties hereto without the prior written consent of the other Parties
      which will not be unreasonably withheld; provided, however, that ATUGEN
      may assign or transfer ATUGEN's rights and obligations under this
      Agreement to an affiliate of ATUGEN or a successor to all or substantially
      all of its assets or business relating to this Agreement, whether by sale,
      merger, securities sale, operation of law or otherwise upon written notice
      to RPI.

8.5   Entire Agreement.  This Agreement constitutes the entire and only
      ----------------
      agreement between the Parties relating to the subject matter hereof, and
      all prior negotiations, representations, agreements and understandings are
      superseded hereby.

8.6   Further Assurances.  At any time or from time to time on and after the
      ------------------
      Effective Date, RPI and ATUGEN shall at the request of the other (a)
      deliver to the other such records, data or other documents consistent with
      the provisions of this Agreement, (b) execute, and deliver or cause to be
      delivered, all such assignments, consents, documents or further
      instruments of transfer or license, and (c) take or cause to be taken all
      such other actions, as may reasonably deem necessary or desirable in order
      to obtain the full benefits of this Agreement and the transactions
      contemplated hereby.

8.7   Notices.  Any notice or other communication required or permitted under
      -------
      this Agreement shall be in writing and will be deemed given as of the date
      such notice is (a) hand delivered, or (b) mailed, postage prepaid, first
      class, certified mail, return receipt requested, or (c) sent, shipping
      prepaid, receipt requested by national courier service, to the Party at
      the address listed below or at such other addresses as may be given from
      time to time in accordance with the terms of this notice provision.


      If to ATUGEN:    ATUGEN Biotechnology GmbH.
                       Robert-Rossle-Strasse 10
                       13125 Berlin
                       Germany
                       Attention:  Managing Director



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    If to RPI:         Ribozyme Pharmaceuticals Inc.
                       2950 Wilderness Place
                       Boulder, CO 80301
                       Attention: President & CEO

8.8. Amendments or Modifications. No amendment or modification to this Agreement
     ---------------------------
     shall be effective unless assented to in writing by the Parties hereto. In
     additon the parties will discuss in good faith any amendments requested by
     the appropriate German government agency.

8.9  Waiver. The failure of a party in any instance to insist upon the strict
     ------
     performance of the terms of this Agreement will not be construed to be a
     waiver or relinquishment of any of the terms of this Agreement, either at
     the time of the party's failure to insist upon strict performance or at any
     time in the future, and such terms will continue in full force and effect.

8.10 Headings. The headings of the several sections of this Agreement are
     --------
     intended for convenience of reference only and are not intended to be a
     part of or to affect the meaning or interpretation of this Agreement.

8.11 Severability Should any of the provisions of this Agreement prove to be
     -------------
     invalid or should this agreement contain omissions, the efficacy of the
     remaining provisions shall not be disturbed. In lieu of the invalid
     provision, the valid provision which comes closest to fulfilling the
     intended economic purpose of the invalid provision shall be deemed agreed
     upon. In the case of omissions, the provision which represents the meaning
     and intention of this agreement and would have been agreed to if the
     parties had been aware of it shall be deemed agreed upon.

8.12 Publication. Each Party shall use its best efforts to provide a copy of any
     -----------
     publication under this Agreement forty-five (45) days in advance of such
     submission for approval by the other party.

8.13 Counterparts. This Agreement may be executed in counterparts, each of
     ------------
     which shall be deemed an original, but all of which together shall
     constitute one and the same English version is binding.

8.14 Language. An English and a German version of this Agreement exist. Only the
     --------
     English version is binding, and the German version shall not be used for
     any legal purpose, interpretive or otherwise.


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IN WITNESS WHEREOF, the Parties hereto, intending to be legally bound hereby,
have caused this Agreement to be executed by their duly authorized
representatives as of the date first written above.

ATUGEN BIOTECHNOLOGY GmbH

By:     /s/ Ralph E. Christoffersen
       -----------------------------

Name:  RALPH E. CHRISTOFFERSEN
       -----------------------------
Title: CEO/GESCHAFTSFUHRER
       --------------------
Date:  11/23/98
       --------

RIBOZYME  PHARMACEUTICALS  INC.

By:     /s/ Larry Bullock
       -----------------------------

Name:  LARRY BULLOCK
       -----------------------------
Title: CFO
       ---
Date:  11/23/98
       --------


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                                   Appendix A



- --------------------------------------------------------------------
               Listing of Existing Licensees         Effective Date
- --------------------------------------------------------------------
                                               
1.               Schering AG, Germany                   4/9/97
- --------------------------------------------------------------------
2.                Roche Bioscience                     5/19/98
- --------------------------------------------------------------------
3.                    Chiron                           5/13/96
- --------------------------------------------------------------------
4.                Glaxo-Wellcome                       7/16/98
- --------------------------------------------------------------------
5.                  Parke-Davis                         3/2/98
- --------------------------------------------------------------------



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                  Appendix B

- ---------------------------------------------------------
            Prospective Licensees
- ---------------------------------------------------------
1.           Abbott Laboratories
- ---------------------------------------------------------
2.             Schering-Plough
- ---------------------------------------------------------
3.                Metabolex
- ---------------------------------------------------------
4.                 Immunex
- ---------------------------------------------------------
5.                  Merck
- ---------------------------------------------------------
6.                E. Merck
- ---------------------------------------------------------
7.                Grunenthal
- ---------------------------------------------------------
8.           Rhone-Poulenc-Rorer
- ---------------------------------------------------------
9.           Alcon Laboratories
- ---------------------------------------------------------
10.        Glaxo-Wellcome expansion
- ---------------------------------------------------------
11.                 Amgen
- ---------------------------------------------------------
12.             Astra-Charnwood
- ---------------------------------------------------------
13.            Smith-Kline Beecham
- ---------------------------------------------------------
14.                  Onyx
- ---------------------------------------------------------
15.   Schering AG Expansion of TVD collaboration
- ---------------------------------------------------------
16.          Signal Pharmaceuticals
- ---------------------------------------------------------
17.     Parke-Davis Pharmaceuticals expansion
- ---------------------------------------------------------
18.             Chiron expansion
- ---------------------------------------------------------


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