Article · Wikipedia archive · Last revised Jun 11, 2026

FKBP3

FK506-binding protein 3 also known as FKBP25 is a protein that in humans is encoded by the FKBP3 gene.

Last revised
Jun 11, 2026
Read time
≈ 4 min
Length
848 w
Citations
20
Source
FKBP3
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesFKBP3, FKBP-25, FKBP-3, FKBP25, PPIase, FK506 binding protein 3, FKBP prolyl isomerase 3
External IDsOMIM: 186947; MGI: 1353460; HomoloGene: 1525; GeneCards: FKBP3; OMA:FKBP3 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_002013

NM_013902

RefSeq (protein)

NP_002004

NP_038930

Location (UCSC)Chr 14: 45.12 – 45.14 MbChr 12: 65.11 – 65.12 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

FK506-binding protein 3 also known as FKBP25 is a protein that in humans is encoded by the FKBP3 gene.567

Function

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 the immunosuppressants FK506 and rapamycin. It has a higher affinity for rapamycin than for FK506 and thus may be an important target molecule for immunosuppression by rapamycin.87

Interactions

FKBP3 has been shown to interact with YY1,9 HDAC1,9 Histone deacetylase 2,9 DNA,10 and Mdm2.11 Both crystal structure of FKBP25 with FK506 and the NMR structure of full length FKBP25 has been published with PDB ID 5D75 and 2MPH respectively.810

References

References

  1. GRCh38: Ensembl release 89: ENSG00000100442Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000020949Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Hung DT, Schreiber SL (June 1992). "cDNA cloning of a human 25 kDa FK506 and rapamycin binding protein". Biochemical and Biophysical Research Communications. 184 (2): 733–738. Bibcode:1992BBRC..184..733H. doi:10.1016/0006-291X(92)90651-Z. PMID 1374240.
  6. Porat R, Poutsiaka DD, Miller LC, Granowitz EV, Dinarello CA (May 1992). "Interleukin-1 (IL-1) receptor blockade reduces endotoxin and Borrelia burgdorferi-stimulated IL-8 synthesis in human mononuclear cells". FASEB Journal. 6 (7): 2482–2486. doi:10.1096/fasebj.6.7.1532945. PMID 1532945. S2CID 29899093.
  7. "Entrez Gene: FKBP3 FK506 binding protein 3, 25kDa".
  8. Prakash A, Rajan S, Yoon HS (April 2016). "Crystal structure of the FK506 binding domain of human FKBP25 in complex with FK506". Protein Science. 25 (4): 905–910. doi:10.1002/pro.2875. PMC 4941220. PMID 26749369.
  9. Yang WM, Yao YL, Seto E (September 2001). "The FK506-binding protein 25 functionally associates with histone deacetylases and with transcription factor YY1". The EMBO Journal. 20 (17): 4814–4825. doi:10.1093/emboj/20.17.4814. PMC 125595. PMID 11532945.
  10. Prakash A, Shin J, Rajan S, Yoon HS (2016). "Structural basis of nucleic acid recognition by FK506-binding protein 25 (FKBP25), a nuclear immunophilin". Nucleic Acids Research. 44 (6): 2909–2925. doi:10.1093/nar/gkw001. PMC 4824100. PMID 26762975.
  11. Ochocka AM, Kampanis P, Nicol S, Allende-Vega N, Cox M, Marcar L, et al. (February 2009). "FKBP25, a novel regulator of the p53 pathway, induces the degradation of MDM2 and activation of p53". FEBS Letters. 583 (4): 621–626. Bibcode:2009FEBSL.583..621O. doi:10.1016/j.febslet.2009.01.009. PMID 19166840. S2CID 6110.
Further reading

Further reading

External links
  • PDBe-KB provides an overview of all the structure information available in the PDB for Human Peptidyl-prolyl cis-trans isomerase FKBP3
  • PDBe-KB provides an overview of all the structure information available in the PDB for Mouse Peptidyl-prolyl cis-trans isomerase FKBP3