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This gene encodes an E1-like activating enzyme that is essential for autophagy and cytoplasmic to vacuole transport. The encoded protein is also thought to modulate p53-dependent cell cycle pathways during prolonged metabolic stress. It has been associated with multiple functions, including axon membrane trafficking, axonal homeostasis, mitophagy, adipose differentiation, and hematopoietic stem cell maintenance. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2015]
MEMSAT3 predicted membrane proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0000045 [autophagosome assembly] GO:0000407 [pre-autophagosomal structure] GO:0004839 [ubiquitin activating enzyme activity] GO:0005515 [protein binding] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0005930 [axoneme] GO:0006464 [cellular protein modification process] GO:0006497 [protein lipidation] GO:0006501 [C-terminal protein lipidation] GO:0006995 [cellular response to nitrogen starvation] GO:0008134 [transcription factor binding] GO:0008641 [small protein activating enzyme activity] GO:0009267 [cellular response to starvation] GO:0010508 [positive regulation of autophagy] GO:0015031 [protein transport] GO:0016236 [macroautophagy] GO:0016239 [positive regulation of macroautophagy] GO:0016567 [protein ubiquitination] GO:0019778 [Atg12 activating enzyme activity] GO:0019779 [Atg8 activating enzyme activity] GO:0031401 [positive regulation of protein modification process] GO:0034727 [piecemeal microautophagy of nucleus] GO:0039521 [suppression by virus of host autophagy] GO:0042803 [protein homodimerization activity] GO:0043065 [positive regulation of apoptotic process] GO:0044805 [late nucleophagy] GO:0045732 [positive regulation of protein catabolic process] GO:0051607 [defense response to virus] GO:0061025 [membrane fusion] GO:0071455 [cellular response to hyperoxia] GO:1903146 [regulation of mitophagy]