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                                                                    EXHIBIT 23.1

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement on
Form S-8 pertaining to the 1996 Equity Incentive Plan, as amended, of Coulter
Pharmaceutical, Inc., of our report dated January 27, 2000, with respect to the
consolidated financial statements of Coulter Pharmaceutical, Inc. included in
its Annual Report (Form 10-K) for the year ended December 31, 1999, filed with
the Securities and Exchange Commission.

                                                           /s/ Ernst & Young LLP

Palo Alto, California
October 26, 2000