Exhibit 31.2
Certification of Chief Financial Officer
Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002
Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002
I, Lawrence W. Briscoe, certify that:
1. | I have reviewed this Amendment No. 1 Annual Report on Form 10-K/A of Maxygen, Inc.; and | ||
2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. | ||
Date: June 25, 2007 | /s/ Lawrence W. Briscoe | |
Lawrence W. Briscoe Chief Financial Officer |