The protein encoded by this gene is a member of the immunophilin protein family, which play a role in immunoregulation and basic cellular processes involving protein folding and trafficking. This encoded protein is a cis-trans prolyl isomerase that binds to the immunosuppressants FK506 and rapamycin. It is thought to mediate calcineurin inhibition. It also interacts functionally with mature hetero-oligomeric progesterone receptor complexes along with the 90 kDa heat shock protein and P23 protein. This gene has been found to have multiple polyadenylation sites. Alias Symbols: AIG6, FKBP51, FKBP54, P54, PPIase, Ptg-10 Protein Interaction Partner: LRRC40, CXorf57, EGLN1, AGO2, CACYBP, CHORDC1, AGO1, KIAA1279, NUDCD3, GLMN, CDC37, SUGT1, PTGES3, NUDC, AHSA1, DNAJB6, AURKB, IKBKG, IRS4, TUBA1A, TTC4, PYGL, PDCD2, CDK11A, HGH1, C14orf80, MCMBP, PNPLA2, ANKMY2, CDC37L1, MCM4, ILK, HSP90AB1, HSP90AA1, H Protein Size: 457