FUNCTION: May be involved in intracellular vesicle traffic. Inhibits ATF4-mediated transcription, possibly by dimerizing with ATF4 to form inactive dimers that cannot bind DNA. May be involved in regulating bone mass density through an ATF4-dependent pathway. May be involved in cell cycle progressio...
                        FUNCTION: May be involved in intracellular vesicle traffic. Inhibits ATF4-mediated transcription, possibly by dimerizing with ATF4 to form inactive dimers that cannot bind DNA. May be involved in regulating bone mass density through an ATF4-dependent pathway. May be involved in cell cycle progression. {ECO:0000269|PubMed:15911876, ECO:0000269|PubMed:18068885}.
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                        GO - Biological processes (BP): 
                        cell cycle [GO:0007049]; regulation of bone mineralization [GO:0030500]; regulation of cell cycle [GO:0051726]; regulation of cell cycle process [GO:0010564]...
                        cell cycle [GO:0007049]; regulation of bone mineralization [GO:0030500]; regulation of cell cycle [GO:0051726]; regulation of cell cycle process [GO:0010564]
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                        GO - Molecular function (MF): 
                        DNA-binding transcription factor binding [GO:0140297]; syntaxin binding [GO:0019905]...
                        DNA-binding transcription factor binding [GO:0140297]; syntaxin binding [GO:0019905]
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                        GO - Cellular component (CC): 
                        cytosol [GO:0005829]; nuclear membrane [GO:0031965]...
                        cytosol [GO:0005829]; nuclear membrane [GO:0031965]
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