
Overview:
PKA C-gamma (PKAcγ) is a third isoform of the catalytic subunit of cAMP-dependent protein kinase. It was isolated from a human testis cDNA library and was clearly derived from a gene distinct from C-alpha and C-beta and showed tissue-specific expression. Whereas at the amino acid level C-alpha and C-beta showed 93% homology, C-gamma showed only about 80% homology to both C-alpha and C-beta (1). The PRKACG gene is intronless, contains remnants of a poly(A) tail, is flanked by direct repeats, and is co-linear with the PRKACA gene(2).
Gene Aliases:
KAPG; PKAr; cAPKr
Genbank Number:
NM_002732
References:
1. Beebe, S. J. et al: Molecular cloning of a tissue-specific protein kinase (C gamma) from human testis--representing a third isoform for the catalytic subunit of cAMP-dependent protein kinase. Molec. Endocr. 4: 465-475, 1990.2. Reinton, N. et al: The gene encoding the C gamma catalytic subunit of cAMP-dependent protein kinase is a transcribed retroposon. Genomics 49: 290-297, 1998.
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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。

