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Ubiquitination requires a ubiquitin-activating enzyme, a ubiquitin-conjugating enzyme, and usually a substrate-specific ubiquitin-protein ligase. Multiubiquitination needs a fourth factor, to bind to the ubiquitin moieties of preformed conjugates and catalyze ubiquitin chain assembly in conjunction with the first three proteins. Human protein KIAA0126, with a predicted 1,073 amino acid residues, is a member of the novel protein family defined by ubiquitination conjugation factor E4. In yeast, E4 activity is linked to cell survival under stress conditions, indicating that eucaryotes use E4-dependent proteolysis pathways for multiple cellular functions.
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: RING-type E3 ubiquitin transferase E4 A; Ubiquitin conjugation factor E4 A; ubiquitination factor E4A (UFD2 homolog, yeast); ubiquitination factor E4A, UFD2 homolog
基因别名: Ab2-232; E4; KIAA0126; UBE4A; UBOX2; UFD2
UniProt ID: (Human) Q14139, (Rat) Q6P7A2
Entrez Gene ID: (Human) 9354, (Rat) 315608