细胞基因敲除效率：>70%

CUL4B NCBI Gene ID：8450

CUL4B Ensembl ID：ENSG00000158290

CUL4B Uniprot ID：Q13620

CUL4B 基因介绍：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. With CUL4A, contributes to ribosome biogenesis (PubMed:26711351).

细胞生长培养基：McCoy’s 5A＋10% FBS＋1% P/S

细胞培养条件：37℃,5% CO2 的培养箱，1/3 到 1/4 传代

细胞倍增时间：~25-48 hours

细胞支原体检测结果：阴性

细胞开发路径：采用CRISPR-RNP方法生成稳定KO Cell Pool；Sanger 测序结果显示KO Cell Pool敲除效率>70%

细胞应用：高敲除效率的基因敲除细胞池（KO Cell Pool），特别适用于初步功能分析、复杂疾病模型的开发、精准药物筛选以及广泛的基因发现研究。