Overview:
TNF-beta is a member of the tumor necrosis factor cytokine family that are primarily expressed on lymphocytes that control lipid metabolism. TNF-beta is highly inducible, secreted, and forms heterotrimers with lymphotoxin-beta which anchor lymphotoxin-alpha to the cell surface. TNF-beta acts as a novel therapeutic route for the treatment of dyslipidemia (1). The presence of TNF-beta accelerates the initiation of immune responses and protects the host from larger viral challenges (2).
Genbank Number:
P09225
References:
1. Lo, J. C. et.al: Lymphotoxin beta receptor-dependent control of lipid homeostasis. Science 316: 285-288, 2007. 2. Lund, F. E. et.al: Lymphotoxin-alpha-deficient mice make delayed, but effective, T and B cell responses to influenza. J. Immun. 169: 5236-5243, 2002.
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我在做5RACE,选用TaKaRa公司的RNA反转录酶(RNaseH-),不知道这个酶好不好,有什么需要注意的。
没有序列识别的功能,他就是简单的催化相邻DNA链的5-P末端和3'-OH末端以磷酸二酯键结合的反应,需ATP作辅酶。 不仅可以催化粘性末端之间或平滑末端之间的DNA的连接,也催化DNA与RNA之间以及少数RNA之间的连接。
反转录酶(Reversetranscripatase)是以RNA为模板指导三磷酸脱氧核苷酸合成互补DNA(cDNA)的酶。哺乳类C型病毒的反转录酶和鼠类B型病毒的反转录酶都是一条多肽链。鸟类RNA病毒的反转录酶则由两上亚基结构。真核生物中也都分离出具有不同结构的反转录酶。

