O54965 E3 Rnf13 10090 None SL-0178 SL-0179 SL-0182 Endoplasmic reticulum membrane {ECO:0000250|UniProtKB:O43567}; Single-pass type I membrane protein {ECO:0000255}. Late endosome membrane {ECO:0000269|PubMed:19292867}; Single-pass type I membrane protein {ECO:0000255}. Lysosome membrane {ECO:0000269|PubMed:19292867}; Single-pass type I membrane protein {ECO:0000255}. Nucleus inner membrane {ECO:0000269|PubMed:20230530}; Single-pass type I membrane protein {ECO:0000255}. Note=The mature protein is subjected to extensive proteolysis that leads to the shedding of the ectodomain into the lumen of vesicles and the release of the C-terminal fragment into the cytosol (PubMed:20230530). Not detected in early endosomes (PubMed:20230530). Treatment of the cells with either PMA or ionomycin stabilizes the full-length protein which relocalizes to recycling endosomes and to the inner nuclear membrane (PubMed:20230530). {ECO:0000269|PubMed:20230530}. UNIPROT O54965 UNIPROT O54966 UNIPROT Q6PEA8 Pfam PF02225 Pfam PF13639 PROSITE PS50089 E3 ubiquitin-protein ligase that regulates cell proliferation (PubMed:19292867). Involved in apoptosis regulation (By similarity). Mediates ER stress-induced activation of JNK signaling pathway and apoptosis by promoting ERN1 activation and splicing of XBP1 mRNA (By similarity). Also involved in protein trafficking and localization (By similarity). {ECO:0000250|UniProtKB:O43567, ECO:0000269|PubMed:19292867}. GO:0005829 GO:0005783 GO:0005789 GO:0005768 GO:0016021 GO:0043231 GO:0031902 GO:0005765 GO:0005637 GO:0005654 GO:0008432 GO:0046872 GO:0061630 GO:0004842 GO:0051640 GO:0070304 GO:0051865 GO:0006511 Transmembrane UniProt Sequence Analysis {ECO:0000255} MLLSIGMLMLSATQVYTILTVQLFAFLNLLPVEADILAYNFENASQTFEDLPARFGYRLPAEGLKGFLINSKPENACEPIVPPPLKDNSSGTFIVLIRRLDCNFDIKVLNAQRAGYKAAIVHNVDSDDLISMGSNDIDTLKKIDIPSVFIGESSANSLKDEFTYEKGGHIILVPELSLPLEYYLIPFLIIVGICLILIVIFMITKFVQDRHRNRRNRLRKDQLKKLPVHKFKKGDEYDVCAICLEEYEDGDKLRILPCSHAYHCKCVDPWLTKTKKTCPVCKQKVVPSQGDSDSDTDSSQEENQVSEHTPLLPPSASARTQSFGSLSESHSHHNMTESSDYEDDDNEETDSSDADNEITDHSVVVQLQPNGEQDYNIANTV 381