Regulation of protein synthesis in rabbit reticulocyte lysates: purification and initial characterization of the double stranded RNA activated protein kinase.

Regulation of protein synthesis in rabbit reticulocyte lysates: purification and initial characterization of the double stranded RNA activated protein kinase.
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兔网织红细胞裂解物中蛋白质合成的调节:双链 RNA 激活蛋白激酶的纯化和初步表征。

DOI:
10.1016/s0006-291x(80)80162-8
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发表时间:
1980
影响因子:
3.1
通讯作者:
Ranu,RS
Ranu,RS
中科院分区:
生物学4区
文献类型:
--
作者:
Ranu,RS

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双链 RNA (dsRNA) 激活的翻译抑制剂 (dRI) 已从兔网织红细胞裂解物中纯化。纯化的 dRI 抑制兔网织红细胞裂解物中的蛋白质合成,其抑制动力学与添加 dsRNA (0.1–100 ng/ml) 观察到的抑制动力学相似。起始因子 eIF-2 克服了抑制作用。当在十二烷基硫酸钠-聚丙烯酰胺凝胶中进行电泳时,纯化的 dRI 作为 70,000 道尔顿的单一多肽迁移。通过Sephacryl S-300(超细)凝胶过滤和甘油密度梯度离心分别获得70,000道尔顿的分子量和3.2S的沉降系数。抑制剂的激活伴随着 dRI 的 70,000 道尔顿多肽的 dsRNA 依赖性磷酸化。纯化的 dRI 是一种不依赖环 AMP 的蛋白激酶,可磷酸化 eIF-2 的 38,000 道尔顿亚基。
Double stranded RNA (dsRNA) activated translational inhibitor (dRI) has been purified from rabbit reticulocyte lysates. Purified dRI inhibits protein synthesis in rabbit reticulocyte lysates with inhibition kinetics that parallel those observed by the addition of dsRNA (0.1–100 ng/ml). The inhibition is overcome by initiation factor eIF-2. Purified dRI migrates as a single polypeptide of 70,000-daltons when subjected to electrophoresis in sodium dodecyl sulfate-polyacrylamide gel. A molecular weight of 70,000-daltons and a sedimentation co-efficient of 3.2S is obtained by gel filtration on Sephacryl S-300 (superfine) and by glycerol density gradient centrifugation, respectively. The inhibitor activation is accompanied by the dsRNA-dependent phosphorylation of the 70,000-dalton polypeptide of dRI. Purified dRI is a cyclic-AMP independent protein kinase that phosphorylates the 38,000-dalton subunit of eIF-2.
DOI: 10.1016/s0006-291x(77)80173-3
发表时间: 1977-01-01
影响因子: 3.1
作者:
COOPER, JA;FARRELL, PJ
通讯作者: FARRELL, PJ
DOI: 10.1016/0006-291x(74)90998-x
发表时间: 1974
影响因子: 3.1
作者:
R. Kaempfer
通讯作者: R. Kaempfer
参与血红蛋白合成起始的因子可在体外被磷酸化
DOI: 10.1038/263163a0
发表时间: 1976
期刊: Nature
影响因子: 64.8
作者:
J. Traugh;S. Tahara;S. B. Sharp;B. Safer;W. Merrick
通讯作者: W. Merrick
DOI: 10.1016/s0021-9258(17)33636-0
发表时间: 1976
期刊: The Journal of biological chemistry
影响因子: --
作者:
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通讯作者: I. Wool
DOI: --
发表时间: 1978
影响因子: 4.8
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