BAG family molecular chaperone regulator 1 is a protein that in humans is encoded by the BAG1 gene .[ 5]
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
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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]
^ a b c GRCh38: Ensembl release 89: ENSG00000107262 – Ensembl , May 2017
^ a b c GRCm38: Ensembl release 89: ENSMUSG00000028416 – Ensembl , May 2017
^ "Human PubMed Reference:" . National Center for Biotechnology Information, U.S. National Library of Medicine .
^ "Mouse PubMed Reference:" . National Center for Biotechnology Information, U.S. National Library of Medicine .
^ 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 .
^ "Entrez Gene: BAG1 BCL2-associated athanogene" .
^ 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.
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
^ 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 .
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Wang HG, Takayama S, Rapp UR, Reed JC (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 .
Takayama S, Kochel K, Irie S, et al. (1996). "Cloning of cDNAs encoding the human BAG1 protein and localization of the human BAG1 gene to chromosome 9p12" . Genomics . 35 (3): 494–8. doi :10.1006/geno.1996.0389 . PMID 8812483 .
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Matsuzawa S, Takayama S, Froesch BA, et al. (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 .
Kullmann M, Schneikert J, Moll J, et al. (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 .
Liu R, Takayama S, Zheng Y, et al. (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 .
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