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Isoform 1 functions as extracellular chaperone that prevents aggregation of nonnative proteins. Prevents stress-induced aggregation of blood plasma proteins. Inhibits formation of amyloid fibrils by APP, APOC2, B2M, CALCA, CSN3, SNCA and aggregation-prone LYZ variants (in vitro). Does not require ATP. Maintains partially unfolded proteins in a state appropriate for subsequent refolding by other chaperones, such as HSPA8/HSC70. Does not refold proteins by itself. Binding to cell surface receptors triggers internalization of the chaperone-client complex and subsequent lysosomal or proteasomal degradation. Secreted isoform 1 protects cells against apoptosis and against cytolysis by complement. Intracellular isoforms interact with ubiquitin and SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complexes and promote the ubiquitination and subsequent proteasomal degradation of target proteins. Promotes proteasomal degradation of COMMD1 and IKBKB. Modulates NF-kappa-B transcriptional activity. Nuclear isoforms promote apoptosis. Mitochondrial isoforms suppress BAX-dependent release of cytochrome c into the cytoplasm and inhibit apoptosis. Plays a role in the regulation of cell proliferation.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: Aging associated protein 4; apo j; Apo J a; Apo J alpha; Apo J b; Apo J beta; Apo J α; Apo J β; Apo Ja; Apo Jb; ApoJ a; ApoJ alpha; ApoJ b; ApoJ beta; ApoJ α; ApoJ β; ApoJa; ApoJb; CLI; Clusterin; Clusterin alpha / beta chain; Complement associated protein SP40; Complement cytolysis inhibitor; CP40; GP80; HGNC:2095; Ku70-binding protein 1 (KUB1); MGC24903; Sulfated glycoprotein 2 (SGP2); Testosterone repressed prostate message 2 (TPRM2B)
基因别名: CLU
UniProt ID: (Pig) Q29549
Entrez Gene ID: (Pig) 397025