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Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the we​bsite may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit Updates regarding government operating status and resumption of normal operations can be found at

Background Information

Note: This is an archived page that is not updated.

The Protein Structure Initiative ended 7/1/2015.

Concept Clearance

Learn about the aims of PSI:Biology.

PSI:Biology Mission Statement

Read about the specific goals and organization of PSI:Biology.

PSI:Biology Videocast Briefing

Watch this August 31, 2009, videocast for answers to general questions about PSI:Biology and specific questions about the current funding opportunities. You may also view the related PowerPoint presentation.

PSI:Biology Evaluation Team Report [PDF, 120KB]

​Read a midpoint evaluation of the PSI:Biology program.

This page last reviewed on August 05, 2015