负责蛋白质合成的细胞器被称为核糖体,由大小不一的亚颗粒组成,每个核糖体都包含核糖体RNA和许多蛋白质。终止蛋白质合成的信号也就是三个终止密码子,在大多数生物体中,终止密码子是UGA,UAA和UAG(U代表尿嘧啶,A是腺嘌呤,G为鸟嘌呤)。一个mRNA分子需要比阅读框长,后者是指一种蛋白翻译所需的遗传信息。不编码任何...
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四、翻译的终止及多肽链的释放 无论原核生物还是真核生物都有三种终止密码子UAG,UAA和UGA。没有一个tRNA能够与终止密码子作用,而是靠特殊的蛋白质因子促成终止作用。这类蛋白质因子叫做释放因子,原核生物有三种释放因子:RF1,RF2T RF3。RF1识别UAA和UAG,RF2识别UAA和UGA。RF3的作用还不明确。真核生物中只有一种...
MALIUGA, D.P. (1947). Opochvakh irasteniiakh kak Poiskovykh priznakakh na metally [On soils and plants as prospecting indicators for metals]. Izvestiya Akademii Nauk SSSR seriya geologicheskaya, 3, 135–138. Google Scholar MARI, J.L., GLANGEAUD, F. and COPPENS, F. (1999). Si...
This particular editosome is also involved in CGA (Arg) to UGA (Stop) editing in the NF1 mRNA. Edman degradation The classic method for sequence determination of peptides using sequential cleavage of the N-terminal residue after reaction with Edman reagent (phenyl isothiocyanate). The N-terminal...
Selenium deficiency reduces the abundance of mRNA for Se-dependent glutathione peroxidase 1 by a UGA-dependent mechanism likely to be nonsense codon-mediated decay of cytoplasmic mRNA Mol. Cell Biol., 18 (1998), pp. 2932-2939 View in ScopusGoogle Scholar [25] R.A. Sunde, A.M. Raines Sele...
The sequences of small inhibitory RNAs (siRNAs) specifically targeting BNIP-3 (siBNIP-3; a pool of sc-37451A (sense: GAACUGCACUUCAGC AAUAtt; antisense: UAUUGCUGAAGUGCAGUUCtt), sc-37451B (sense: CCAUAGCAUUGGAGAGAAAtt, ...
Above 550 °C in the TGA curve, no change was observed in the mass of the nanofibers, indicating complete combustion of PVP and the formation of crystalline Fe2O3@SnO2 composite. XRD analysis. The X-ray diffraction (XRD) patterns of the calcined samples at 450 and 600 °C ...
H o f f m a n n , Gottesfriede und Treuga American Diplomacy, 1800—1860 . . . 225 Dei (Br. Meyer) 129 R. Gossez, Les Conseillers g6n6raux, s. Karl Holl (1866—1926), Brief\vechsel mit L. Girard 783 Adolf von Hamack. Hrsg. v. H. Karpp . 241 A. Graffart, Inventaire...