
Overview:
UBE2N (UBC13) or ubiquitin-conjugating enzyme E2N is a member of the E2 ubiquitin-conjugating enzyme family which plays a role in DNA post-replication repair. UBE2N gene encodes a novel human E2 that may be involved in protein degradation in the muscles and testis (1). UBE2N plays a role in initiation of homologous recombination during double-strand break repair (2). UBE2N activity may have therapeutic uses in controlling inflammatory responses and it is also important in the induction of immune responses.
Gene Aliases:
UBC13; UbcH-ben
Genbank Number:
NM_003348
References:
1. Yamaguchi, T. et.al: Cloning and expression of cDNA encoding a human ubiquitin-conjugating enzyme similar to the Drosophila bendless gene product. J. Biochem. 120: 494-497, 1996. 2. Zhao, G. Y. et.al: A critical role for the ubiquitin-conjugating enzyme Ubc13 in initiating homologous recombination. Molec. Cell 25: 663-675, 2007.
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植物材料 用最精确的方法,称取不超过100mg的植物材料,置于处理过的研钵,加入液氮进行研磨 将研磨得到的粉末,快速转移至无RNase,并经过液氮冷却的2mL离心管(自备),
但是,这样做的前提的,RNA提得要好,浓度要高,这样免得RNA降解到不能用了。因为在有二价阳离子的(DNAseI buffer含有)情况下,RNA在60度以上时必然发生非酶促降解。
想搞清一个问题,如何区别是因为small RNA 引起的调控呢?还是tRNA引起的调控,有没有有效的分离这两种RNA的办法呢?
样品处理:
a. 植物组织:取新鲜或-70℃冻存100mg组织在液氮中研磨,把粉末加入到1ml裂解液中混匀。
b. 动物组织:取新鲜或-70℃冻存100mg组织加1ml裂解液,用组织研磨杵或匀浆器匀浆处理。
c. 贴壁细胞:直接在培养板中加入裂解液裂解细胞,每106细胞加1ml 裂解液。用取样器吹打混匀。

