FKBP5

FK506 binding protein 5
PDB rendering based on 1kt0.
Available structures PDB Ortholog search: PDBe, RCSB List of PDB id codes 1KT0, 3O5D, 3O5E, 3O5F, 3O5G, 3O5I, 3O5J, 3O5K, 3O5L, 3O5M, 3O5O, 3O5P, 3O5Q, 3O5R, 4DRH, 4DRI, 4DRK, 4DRM, 4DRN, 4DRO, 4DRP, 4DRQ
Identifiers
Symbols	FKBP5; AIG6; FKBP51; FKBP54; P54; PPIase; Ptg-10
External IDs	OMIM: 602623 MGI: 104670 HomoloGene: 3038 GeneCards: FKBP5 Gene
EC number	5.2.1.8
Gene Ontology Molecular function • peptidyl-prolyl cis-trans isomerase activity • FK506 binding • heat shock protein binding Cellular component • nucleus • nucleolus • cytoplasm • membrane Biological process • protein peptidyl-prolyl isomerization • protein folding • peptidyl-proline modification • chaperone-mediated protein folding Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	2289	14229
Ensembl	ENSG00000096060	ENSMUSG00000024222
UniProt	Q13451	Q64378
RefSeq (mRNA)	NM_001145775	NM_010220
RefSeq (protein)	NP_001139247	NP_034350
Location (UCSC)	Chr 6: 35.54 – 35.7 Mb	Chr 17: 28.4 – 28.52 Mb
PubMed search	[1]	[2]

FK506 binding protein 5, also known as FKBP5, is a protein which in humans is encoded by the FKBP5 gene.

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 to the immunosuppressants FK506 and rapamycin. It is thought to mediate calcineurin inhibition. It also interacts functionally with mature corticoid receptor hetero-complexes (i.e. progesterone-, glucocorticoid-, mineralcorticoid-receptor complexes) along with the 90 kDa heat shock protein and P23 protein.

Clinical significance

Genetic studies have identified a role for FKBP5 in posttraumatic stress disorder, depression and anxiety. For example, single nucleotide polymorphisms (SNPs) in FKBP5 have been found to interact with childhood trauma to predict severity of adult posttraumatic stress disorder (PTSD). These findings suggest that individuals with these SNPs who are abused as children are more susceptible to PTSD as adults. FKBP5 has also been found to be less expressed in individuals with current PTSD. The FKBP5 gene has been found to have multiple polyadenylation sites and is statistically associated with a higher rate of depressive disorders.

Interactions

FKBP5 has been shown to interact with Heat shock protein 90kDa alpha (cytosolic), member A1.

See also

• FKBP52 - a functional antagonist to FKBP51 at corticoid receptors

Further reading

• Schiene-Fischer C, Yu C (2001). "Receptor accessory folding helper enzymes: the functional role of peptidyl prolyl cis/trans isomerases.". FEBS Lett. 495 (1-2): 1–6. doi:10.1016/S0014-5793(01)02326-2. PMID 11322937. 
• Baughman G, Wiederrecht GJ, Campbell NF, et al. (1995). "FKBP51, a novel T-cell-specific immunophilin capable of calcineurin inhibition.". Mol. Cell. Biol. 15 (8): 4395–402. PMC 230679. PMID 7542743. 
• Smith DF, Baggenstoss BA, Marion TN, Rimerman RA (1993). "Two FKBP-related proteins are associated with progesterone receptor complexes.". J. Biol. Chem. 268 (24): 18365–71. PMID 7688746. 
• Smith DF, Albers MW, Schreiber SL, et al. (1993). "FKBP54, a novel FK506-binding protein in avian progesterone receptor complexes and HeLa extracts.". J. Biol. Chem. 268 (32): 24270–3. PMID 7693698. 
• Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides.". Gene 138 (1-2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298. 
• Johnson J, Corbisier R, Stensgard B, Toft D (1996). "The involvement of p23, hsp90, and immunophilins in the assembly of progesterone receptor complexes.". J. Steroid Biochem. Mol. Biol. 56 (1-6 Spec No): 31–7. doi:10.1016/0960-0760(95)00221-9. PMID 8603045. 
• Nair SC, Rimerman RA, Toran EJ, et al. (1997). "Molecular cloning of human FKBP51 and comparisons of immunophilin interactions with Hsp90 and progesterone receptor.". Mol. Cell. Biol. 17 (2): 594–603. PMC 231784. PMID 9001212. 
• Baughman G, Wiederrecht GJ, Chang F, et al. (1997). "Tissue distribution and abundance of human FKBP51, and FK506-binding protein that can mediate calcineurin inhibition.". Biochem. Biophys. Res. Commun. 232 (2): 437–43. doi:10.1006/bbrc.1997.6307. PMID 9125197. 
• Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library.". Gene 200 (1-2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149. 
• Young JC, Obermann WM, Hartl FU (1998). "Specific binding of tetratricopeptide repeat proteins to the C-terminal 12-kDa domain of hsp90.". J. Biol. Chem. 273 (29): 18007–10. doi:10.1074/jbc.273.29.18007. PMID 9660753. 
• Hartley JL, Temple GF, Brasch MA (2001). "DNA cloning using in vitro site-specific recombination.". Genome Res. 10 (11): 1788–95. doi:10.1101/gr.143000. PMC 310948. PMID 11076863. 
• Wiemann S, Weil B, Wellenreuther R, et al. (2001). "Toward a catalog of human genes and proteins: sequencing and analysis of 500 novel complete protein coding human cDNAs.". Genome Res. 11 (3): 422–35. doi:10.1101/gr.GR1547R. PMC 311072. PMID 11230166. 
• Pirkl F, Buchner J (2001). "Functional analysis of the Hsp90-associated human peptidyl prolyl cis/trans isomerases FKBP51, FKBP52 and Cyp40.". J. Mol. Biol. 308 (4): 795–806. doi:10.1006/jmbi.2001.4595. PMID 11350175. 
• Davies TH, Ning YM, Sánchez ER (2002). "A new first step in activation of steroid receptors: hormone-induced switching of FKBP51 and FKBP52 immunophilins.". J. Biol. Chem. 277 (7): 4597–600. doi:10.1074/jbc.C100531200. PMID 11751894. 
• Giraudier S, Chagraoui H, Komura E, et al. (2002). "Overexpression of FKBP51 in idiopathic myelofibrosis regulates the growth factor independence of megakaryocyte progenitors.". Blood 100 (8): 2932–40. doi:10.1182/blood-2002-02-0485. PMID 12351405. 
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932. 
• Sinars CR, Cheung-Flynn J, Rimerman RA, et al. (2003). "Structure of the large FK506-binding protein FKBP51, an Hsp90-binding protein and a component of steroid receptor complexes.". Proc. Natl. Acad. Sci. U.S.A. 100 (3): 868–73. doi:10.1073/pnas.0231020100. PMC 298693. PMID 12538866. 
• Hubler TR, Denny WB, Valentine DL, et al. (2003). "The FK506-binding immunophilin FKBP51 is transcriptionally regulated by progestin and attenuates progestin responsiveness.". Endocrinology 144 (6): 2380–7. doi:10.1210/en.2003-0092. PMID 12746298. 
• Bouwmeester T, Bauch A, Ruffner H, et al. (2004). "A physical and functional map of the human TNF-alpha/NF-kappa B signal transduction pathway.". Nat. Cell Biol. 6 (2): 97–105. doi:10.1038/ncb1086. PMID 14743216.