BAG1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesBAG1, BAG-1, HAP, RAP46, BCL2 associated athanogene 1, BAG cochaperone 1
External IDsOMIM: 601497 MGI: 108047 HomoloGene: 3190 GeneCards: BAG1
Orthologs
SpeciesHumanMouse
Entrez

573

12017

Ensembl

ENSG00000107262

ENSMUSG00000028416

UniProt

Q99933

Q60739

RefSeq (mRNA)

NM_004323
NM_001172415
NM_001349286
NM_001349299

NM_001171739
NM_009736

RefSeq (protein)

NP_001165886
NP_004314
NP_001336215
NP_001336228

NP_001165210
NP_033866

Location (UCSC)Chr 9: 33.25 – 33.26 MbChr 4: 40.94 – 40.95 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

BAG family molecular chaperone regulator 1 is a protein that in humans is encoded by the BAG1 gene.[5]

Function

The oncogene BCL2 is a membrane protein that blocks a step in a pathway leading to apoptosis or programmed cell death. The protein encoded by this gene binds to BCL2 and is referred to as BCL2-associated athanogene. It enhances the anti-apoptotic effects of BCL2 and represents a link between growth factor receptors and anti-apoptotic mechanisms. At least three protein isoforms are encoded by this mRNA through the use of alternative translation initiation sites, including a non-AUG site.[6]

Clinical significance

BAG gene has been implicated in age related neurodegenerative diseases as Alzheimer's. It has been demonstrated that BAG1 and BAG 3 regulate the proteasomal and lysosomal protein elimination pathways, respectively.[7]

Interactions

BAG1 has been shown to interact with:

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000107262 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000028416 - Ensembl, 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. ↑ Takayama S, Sato T, Krajewski S, Kochel K, Irie S, Millan JA, Reed JC (March 1995). "Cloning and functional analysis of BAG-1: a novel Bcl-2-binding protein with anti-cell death activity". Cell. 80 (2): 279–84. doi:10.1016/0092-8674(95)90410-7. PMID 7834747. S2CID 17824475.
  6. ↑ "Entrez Gene: BAG1 BCL2-associated athanogene".
  7. ↑ Gamerdinger M, Hajieva P, Kaya AM, Wolfrum U, Hartl FU, Behl C (2009). "Protein quality control during aging involves recruitment of the macroautophagy pathway by BAG3". EMBO J. 28 (7): 889–901. doi:10.1038/emboj.2009.29. PMC 2647772. PMID 19229298. *Lay summary in: "Old Cells Work Differently". Phys.org. March 1, 2009.
  8. ↑ Shatkina L, Mink S, Rogatsch H, Klocker H, Langer G, Nestl A, Cato AC (October 2003). "The cochaperone Bag-1L enhances androgen receptor action via interaction with the NH2-terminal region of the receptor". Mol. Cell. Biol. 23 (20): 7189–97. doi:10.1128/mcb.23.20.7189-7197.2003. PMC 230325. PMID 14517289.
  9. ↑ Knee DA, Froesch BA, Nuber U, Takayama S, Reed JC (April 2001). "Structure-function analysis of Bag1 proteins. Effects on androgen receptor transcriptional activity". J. Biol. Chem. 276 (16): 12718–24. doi:10.1074/jbc.M010841200. PMID 11278763.
  10. ↑ Froesch BA, Takayama S, Reed JC (May 1998). "BAG-1L protein enhances androgen receptor function". J. Biol. Chem. 273 (19): 11660–6. doi:10.1074/jbc.273.19.11660. PMID 9565586.
  11. ↑ Wang HG, Takayama S, Rapp UR, Reed JC (July 1996). "Bcl-2 interacting protein, BAG-1, binds to and activates the kinase Raf-1". Proc. Natl. Acad. Sci. U.S.A. 93 (14): 7063–8. Bibcode:1996PNAS...93.7063W. doi:10.1073/pnas.93.14.7063. PMC 38936. PMID 8692945.
  12. ↑ Guzey M, Takayama S, Reed JC (Dec 2000). "BAG1L enhances trans-activation function of the vitamin D receptor". J. Biol. Chem. 275 (52): 40749–56. doi:10.1074/jbc.M004977200. PMID 10967105.
  13. ↑ Kullmann M, Schneikert J, Moll J, Heck S, Zeiner M, Gehring U, Cato AC (June 1998). "RAP46 is a negative regulator of glucocorticoid receptor action and hormone-induced apoptosis". J. Biol. Chem. 273 (23): 14620–5. doi:10.1074/jbc.273.23.14620. PMID 9603979.
  14. ↑ Schneikert J, Hübner S, Langer G, Petri T, Jäättelä M, Reed J, Cato AC (Dec 2000). "Hsp70-RAP46 interaction in downregulation of DNA binding by glucocorticoid receptor". EMBO J. 19 (23): 6508–16. doi:10.1093/emboj/19.23.6508. PMC 305849. PMID 11101523.
  15. ↑ Takayama S, Bimston DN, Matsuzawa S, Freeman BC, Aime-Sempe C, Xie Z, Morimoto RI, Reed JC (August 1997). "BAG-1 modulates the chaperone activity of Hsp70/Hsc70". EMBO J. 16 (16): 4887–96. doi:10.1093/emboj/16.16.4887. PMC 1170124. PMID 9305631.
  16. ↑ Takayama S, Xie Z, Reed JC (January 1999). "An evolutionarily conserved family of Hsp70/Hsc70 molecular chaperone regulators". J. Biol. Chem. 274 (2): 781–6. doi:10.1074/jbc.274.2.781. PMID 9873016.
  17. ↑ Lin J, Hutchinson L, Gaston SM, Raab G, Freeman MR (August 2001). "BAG-1 is a novel cytoplasmic binding partner of the membrane form of heparin-binding EGF-like growth factor: a unique role for proHB-EGF in cell survival regulation". J. Biol. Chem. 276 (32): 30127–32. doi:10.1074/jbc.M010237200. PMID 11340068.
  18. ↑ Hung WJ, Roberson RS, Taft J, Wu DY (May 2003). "Human BAG-1 proteins bind to the cellular stress response protein GADD34 and interfere with GADD34 functions". Mol. Cell. Biol. 23 (10): 3477–86. doi:10.1128/mcb.23.10.3477-3486.2003. PMC 164759. PMID 12724406.
  19. ↑ Liu R, Takayama S, Zheng Y, Froesch B, Chen GQ, Zhang X, Reed JC, Zhang XK (July 1998). "Interaction of BAG-1 with retinoic acid receptor and its inhibition of retinoic acid-induced apoptosis in cancer cells". J. Biol. Chem. 273 (27): 16985–92. doi:10.1074/jbc.273.27.16985. PMID 9642262.
  20. ↑ Matsuzawa S, Takayama S, Froesch BA, Zapata JM, Reed JC (May 1998). "p53-inducible human homologue of Drosophila seven in absentia (Siah) inhibits cell growth: suppression by BAG-1". EMBO J. 17 (10): 2736–47. doi:10.1093/emboj/17.10.2736. PMC 1170614. PMID 9582267.

Further reading

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