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NIH3D

Sirolimus

Generated by NIH 3D workflows using data provided by
Kzoghebi
Created:
2/17/19
Submitted:
3/6/23
Published:
3/6/23

Select an image below to view

3DPX-010603

Licensing:

CC-BY
168
17
Version 2

Category

Small Molecules
Small Molecules
Description

Sirolimus is a natural macrocyclic lactone produced by the bacterium Streptomyces hygroscopicus, with immunosuppressant properties. In cells, sirolimus binds to the immunophilin FK Binding Protein-12 (FKBP-12) to generate an immunosuppressive complex that binds to and inhibits the activation of the mammalian Target Of Rapamycin(mTOR), a key regulatory kinase. This results in inhibition of T lymphocyte activation and proliferation that occurs in response to antigenic and cytokine (IL-2, IL-4, and IL-15) stimulation and inhibition of antibody production.