
Overview:
PDE4B is a member of the phosphodiesterase family of proteins that play a critical role in regulating intracellular levels of cAMP and has homology to the 'dunce' gene of Drosophila. The 'dunce' gene is one of several genes critical for normal learning and memory in the fly. Altered activity of PDE4B has been associated with schizophrenia and bipolar affective disorder. DISC1 interacts with the UCR2 domain of PDE4B and elevation of cellular cAMP leads to dissociation of PDE4B from DISC1 and in increase in PDE4B activity (1). PDE4B gene itself does not link to major depressive disorder (MDD) but elevated mRNA levels of PDE4B have been implicated in the pathophysiology of MDD (2).
Gene Aliases:
DPDE4; PDE4B5; PDEIVB; MGC126529; DKFZp686F2182
Genbank Number:
NM_002600
References:
1. Millar J K, et al: DISC1 and PDE4B are interacting genetic factors in schizophrenia that regulate cAMP signaling. Science 310: 1187-1191, 2005.2. Numata S, et al: Gene expression and association analyses of the phosphodiesterase 4B (PDE4B) gene in major depressive disorder in the Japanese population. Am J Med Genet B Neuropsychiatr Genet. 2009 Jun 5;150B(4):527-34.
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最近遇到了实验上的大问题,就是用一步法做RNA的荧光定量PCR时,发现低浓度的做不出来,而DNA是可以的,想请问各位在一步法PCR中有没有什么高见,就是逆转录的Buffer有没有什么需要注意的地方!就是在逆转录酶的最适Buffer和Taq酶的最适Buffer中寻找一个最适的Buffer!
DNA拓扑异构酶Ⅱ与抗肿瘤药物靶点的研究进展.doc(59.5k)
B、酶细胞产能细胞内(外)起作用消化酶细胞外起作用B错误;
C、酶同需要适条件同胃蛋白酶与胰蛋白酶所需PH同C错误;
D、葡萄糖细胞质基质解丙酮酸需要酶催化D确.
故选:D.
我是新手。我要开始做实验了,但一开始就碰到了个很大的问题。
我想买个能利用哺乳动物细胞RNA聚合酶将DNA转录成RNA的的质粒,向好几家公司打了电话,但都没有我想要的东西。
没有这个东西,我的实验就只能是蓝图了。哪位战友有办法的,能不能帮帮我?
不胜感激。
请规范发贴,求助贴请在标题前加【求助】,谢谢您的合作。——by草根

