Cullin-RING E3 Ubiquitin Ligase 7 in Growth Control and Cancer.

Cullin-RING E3 Ubiquitin Ligase 7 in Growth Control and Cancer.
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Cullin环E3泛素连接酶7在生长控制和癌症中。

DOI:
10.1007/978-981-15-1025-0_17
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发表时间:
2020
影响因子:
--
通讯作者:
Pan ZQ
Pan ZQ
中科院分区:
医学4区
文献类型:
--
作者:
Pan ZQ

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CRL 7 Fbxw 8是一种E3泛素连接酶复合物,含有cullin 7(CUL 7)作为支架,F-box蛋白Fbxw 8作为底物受体,Skp 1衔接子和ROC 1/Rbx 1 RING指蛋白,用于与E2酶一起促进泛素转移。本章提供了一个最新的研究链接CRL 7 Fbxw 8遗传性人类生长迟缓疾病,至少有64 cul 7生殖系突变被发现在常染色体隐性3-M综合征患者。CRL 7 Fbxw 8与另外两种3-M相关蛋白OBSL 1和CCDC 8相互作用,导致E3复合物亚细胞定位于包括质膜、中心体和高尔基体的区域。至少10种哺乳动物细胞蛋白被鉴定或涉及为CRL 7 Fbxw 8底物。讨论集中在CRL 7 Fbxw 8介导的蛋白水解或非蛋白水解途径在生长控制和癌症中的可能影响。
CRL7Fbxw8 is an E3 ubiquitin ligase complex, containing cullin7 (CUL7) as a scaffold, the F-box protein Fbxw8 as a substrate receptor, the Skp1 adaptor, and the ROC1/Rbx1 RING finger protein for working with E2 enzyme to facilitate ubiquitin transfer. This chapter provides an update on studies linking CRL7Fbxw8 to hereditary human growth retardation disease, as at least 64 cul7 germ line mutations were found in patients with autosomal recessive 3-M syndrome. CRL7Fbxw8 interacts with two additional 3-M associated proteins OBSL1 and CCDC8, leading to subcellular localization of the E3 complex to regions including plasma membrane, centrosome, and Golgi. At least ten mammalian cellular proteins were identified or implicated as CRL7Fbxw8 substrates. Discussion focuses on the possible impact of CRL7Fbxw8-mediated proteolytic or non-proteolytic pathways in growth control and cancer.
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