BECN1 (基因名), Beclin-1 (蛋白名), becn1_pig.
通用注释
亚单元:
A homodimeric form is proposed to exist; this metastable form readily transits to ATG14- or UVRAG-containing complexes with BECN1:UVRAG being more stable than BECN1:ATG14 (By similarity). Component of the PI3K (PI3KC3/PI3K-III/class III phosphatidylinositol 3-kinase) complex the core of which is composed of the catalytic subunit PIK3C3, the regulatory subunit PIK3R4 and BECN1 associating with additional regulatory/auxilliary subunits to form alternative complex forms. Alternative complex forms containing a forth regulatory subunit in a mutually exclusive manner are PI3K complex I (PI3KC3-C1) containing ATG14, and PI3K complex II (PI3KC3-C2) containing UVRAG. PI3KC3-C1 displays a V-shaped architecture with PIK3R4 serving as a bridge between PIK3C3 and the ATG14:BECN1 subcomplex. Both, PI3KC3-C1 and PI3KC3-C2, can associate with further regulatory subunits, such as RUBCN, SH3GLB1/Bif-1 and AMBRA1. PI3KC3-C1 probably associates with PIK3CB. Interacts with AMBRA1, GOPC, GRID2. Interacts with BCL2 and BCL2L1; the interaction inhibits BECN1 function in promoting autophagy by interfering with the formation of the PI3K complex. Interacts with cytosolic HMGB1; inhibits the interaction of BECN1 and BCL2 leading to promotion of autophagy. Interacts with USP10, USP13, VMP1, DAPK1, RAB39A. Interacts with SLAMF1. Interacts with TRIM5; the interaction causes activation of BECN1 by causing its dissociation from its inhibitors BCL2 and TAB2. Interacts with active ULK1 (phosphorylated on 'Ser-317') and MEFV simultaneously.
功能:
Beclin-1-C 35 kDa localized to mitochondria can promote apoptosis; it induces the mitochondrial translocation of BAX and the release of proapoptotic factors.
亚细胞位置:
Beclin-1-C 37 kDa
Mitochondrion
数据库链接
UniGene:
SMR:
STRING:
KEGG:
Pfam:
Uniprot:
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