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Proteintech
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Immunogen sequence: MMSQSSGSG DGNDDEATTS KDGGFSSPSP SAAAAAQEVR SATDGNTSTT PPTSAKKRKL NSSSSSSSNS SNEREDFDST SSSSSTPPLQ PRDSASPSTS SFCLGVSVAA SSHVPIQKKL RFEDTLEFVG FDAKMAEESS SSSSSSSPTA ATSQQQQLKN KSILISSVAS VHHANGLAKS STTVSSFANS KPGSAKKLVI KNFKDKPKLP ENYTDETWQK LKEAVEAIQN STSIKYNLEE LYQAVENLCS YKISANLYKQ LRQICEDHIK AQIHQFREDS LDSVLFLKKI DRCWQNHCRQ MIMIRSIFLF LDRTYVLQNS MLPSIWDMGL ELFRAHIISD QKVQNKTIDG IL (1-351 aa encoded by BC036216)
Core component of multiple cullin-RING-based E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. The functional specificity of the E3 ubiquitin-protein ligase complex depends on the variable substrate recognition subunit. CUL4B may act within the complex as a scaffold protein, contributing to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. Plays a role as part of the E3 ubiquitin-protein ligase complex in polyubiquitination of CDT1, histone H2A, histone H3 and histone H4 in response to radiation-induced DNA damage. Targeted to UV damaged chromatin by DDB2 and may be important for DNA repair and DNA replication. Required for ubiquitination of cyclin E, and consequently, normal G1 cell cycle progression. Regulates the mammalian target-of-rapamycin (mTOR) pathway involved in control of cell growth, size and metabolism. Specific CUL4B regulation of the mTORC1-mediated pathway is dependent upon 26S proteasome function and requires interaction between CUL4B and MLST8.
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: CUL-4B; Cullin-4B
基因别名: CUL-4B; CUL4B; KIAA0695; MRXHF2; MRXS15; MRXSC; RGD1564494; SFM2
UniProt ID: (Human) Q13620
Entrez Gene ID: (Human) 8450, (Rat) 302502