Structural Biology

Edited by: Karen Young Kreeger J.P. Griffith, J.L. Kim, E.E. Kim, M.D. Sintchak, J.A. Thomson, M.J. Fitzgibbon, M.A. Fleming, P.R. Caron, K. Hsiao, M.A. Navia, "X-ray structure of calcineurin inhibited by the immunophilin-immunosuppressant FKBP12-FK506 complex," Cell, 82:507-22, 1995. (Cited in close to 70 publications as of February 1997) Comments by James P. Griffith and Joseph L. Kim, Vertex Pharmaceuticals Inc., Cambridge, Mass. FK506 is an immunosuppressant drug used for preventing graft

| 2 min read

Register for free to listen to this article
Listen with Speechify
0:00
2:00
Share

Edited by: Karen Young Kreeger
J.P. Griffith, J.L. Kim, E.E. Kim, M.D. Sintchak, J.A. Thomson, M.J. Fitzgibbon, M.A. Fleming, P.R. Caron, K. Hsiao, M.A. Navia, "X-ray structure of calcineurin inhibited by the immunophilin-immunosuppressant FKBP12-FK506 complex," Cell, 82:507-22, 1995. (Cited in close to 70 publications as of February 1997)

FK506 is an immunosuppressant drug used for preventing graft rejection after organ transplantation and for treating some autoimmune diseases. The drug works by inhibiting the action of the enzyme calcineurin and its associated cellular binding protein, FKBP12. FK506 and FKBP12 form a molecular complex that suppresses T-cell activation by binding to calcineurin and inhibiting its phosphatase activity.

'FULL-SERVICE' COMPLEX: Vertex researchers Jim Griffith, left, and Joseph Kim described the structure of a large, multicomponent immunosuppressant molecular complex. "This paper provides the structural basis for understanding calcineurin inhibition by the FKBP12-FK506 complex," says Joseph Kim, a staff scientist at Cambridge, Mass.-based Vertex Pharmaceuticals ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to digital editions of The Scientist, as well as TS Digest, feature stories, more than 35 years of archives, and much more!
Already a member? Login Here
February 2026

A Stubborn Gene, a Failed Experiment, and a New Path

When experiments refuse to cooperate, you try again and again. For Rafael Najmanovich, the setbacks ultimately pushed him in a new direction.

View this Issue
Human-Relevant In Vitro Models Enable Predictive Drug Discovery

Advancing Drug Discovery with Complex Human In Vitro Models

Stemcell Technologies
Redefining Immunology Through Advanced Technologies

Redefining Immunology Through Advanced Technologies

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Beckman Coulter Logo
Conceptual multicolored vector image of cancer research, depicting various biomedical approaches to cancer therapy

Maximizing Cancer Research Model Systems

bioxcell

Products

Sino Biological Logo

Sino Biological Pioneers Life Sciences Innovation with High-Quality Bioreagents on Inside Business Today with Bill and Guiliana Rancic

Sino Biological Logo

Sino Biological Expands Research Reagent Portfolio to Support Global Nipah Virus Vaccine and Diagnostic Development

Beckman Coulter

Beckman Coulter Life Sciences Partners with Automata to Accelerate AI-Ready Laboratory Automation

Refeyn logo

Refeyn named in the Sunday Times 100 Tech list of the UK’s fastest-growing technology companies