FUNCTION: Recruits the serine/threonine-protein phosphatase PPP1CA to prevents excessive phosphorylation of the translation initiation factor eIF-2A/EIF2S1, thereby reversing the shut-off of protein synthesis initiated by stress-inducible kinases and facilitating recovery of cells from stress (PubMe...
FUNCTION: Recruits the serine/threonine-protein phosphatase PPP1CA to prevents excessive phosphorylation of the translation initiation factor eIF-2A/EIF2S1, thereby reversing the shut-off of protein synthesis initiated by stress-inducible kinases and facilitating recovery of cells from stress (PubMed:26742780, PubMed:26095357). Down-regulates the TGF-beta signaling pathway by promoting dephosphorylation of TGFB1 by PP1 (PubMed:14718519). May promote apoptosis by inducing p53/TP53 phosphorylation on 'Ser-15' (PubMed:14635196). Plays an essential role in autophagy by tuning translation during starvation, thus enabling lysosomal biogenesis and a sustained autophagic flux (PubMed:32978159). Acts also a viral restriction factor by attenuating HIV-1 replication (PubMed:31778897). Mechanistically, mediates the inhibition of HIV-1 TAR RNA-mediated translation (PubMed:31778897). {ECO:0000269|PubMed:11564868, ECO:0000269|PubMed:12556489, ECO:0000269|PubMed:14635196, ECO:0000269|PubMed:14718519, ECO:0000269|PubMed:26095357, ECO:0000269|PubMed:31778897, ECO:0000269|PubMed:8139541}.; FUNCTION: (Microbial infection) Promotes enterovirus 71 replication by mediating the internal ribosome entry site (IRES) activity of viral 5'-UTR. {ECO:0000269|PubMed:34985336}.
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GO - Biological processes (BP):
apoptotic process [GO:0006915]; cellular response to DNA damage stimulus [GO:0006974]; intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress [GO:0070059]; negative regulation of PERK-mediated unfolded protein response [GO:1903898]; negative regulation of phosphoprotein ph...
apoptotic process [GO:0006915]; cellular response to DNA damage stimulus [GO:0006974]; intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress [GO:0070059]; negative regulation of PERK-mediated unfolded protein response [GO:1903898]; negative regulation of phosphoprotein phosphatase activity [GO:0032515]; negative regulation of protein dephosphorylation [GO:0035308]; positive regulation of endoplasmic reticulum stress-induced eIF2 alpha dephosphorylation [GO:1903917]; positive regulation of peptidyl-serine dephosphorylation [GO:1902310]; positive regulation of phosphoprotein phosphatase activity [GO:0032516]; positive regulation of translational initiation in response to stress [GO:0032058]; protein localization to endoplasmic reticulum [GO:0070972]; regulation of cell cycle [GO:0051726]; regulation of translational initiation by eIF2 alpha dephosphorylation [GO:0036496]; response to endoplasmic reticulum stress [GO:0034976]
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GO - Molecular function (MF):
protein kinase binding [GO:0019901]; protein phosphatase 1 binding [GO:0008157]; protein phosphatase activator activity [GO:0072542]; protein phosphatase regulator activity [GO:0019888]...
protein kinase binding [GO:0019901]; protein phosphatase 1 binding [GO:0008157]; protein phosphatase activator activity [GO:0072542]; protein phosphatase regulator activity [GO:0019888]
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GO - Cellular component (CC):
cytoplasm [GO:0005737]; cytosol [GO:0005829]; endoplasmic reticulum [GO:0005783]; endoplasmic reticulum membrane [GO:0005789]; Golgi apparatus [GO:0005794]; membrane [GO:0016020]; mitochondrial outer membrane [GO:0005741]; mitochondrion [GO:0005739]; protein phosphatase type 1 complex [GO:0000164]...
cytoplasm [GO:0005737]; cytosol [GO:0005829]; endoplasmic reticulum [GO:0005783]; endoplasmic reticulum membrane [GO:0005789]; Golgi apparatus [GO:0005794]; membrane [GO:0016020]; mitochondrial outer membrane [GO:0005741]; mitochondrion [GO:0005739]; protein phosphatase type 1 complex [GO:0000164]
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