Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated March 8, 2006, relating to the financial statements, management’s assessment of the effectiveness of internal control over financial reporting and the effectiveness of internal control over financial reporting of Cytokinetics, Incorporated, which appears in Cytokinetics, Incorporated’s Annual Report on Form 10-K for the year ended December 31, 2005.
/s/ PricewaterhouseCoopers LLP
San Jose, California
April 14, 2006
April 14, 2006