Cloning and characterization of human liver cDNA encoding a protein S precursor.

Cloning and characterization of human liver cDNA encoding a protein S precursor.
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编码蛋白 S 前体的人肝脏 cDNA 的克隆和表征。

DOI:
10.1073/pnas.84.2.349
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发表时间:
1987
影响因子:
11.1
通讯作者:
G. Long
G. Long
中科院分区:
综合性期刊1区
文献类型:
--
作者:
J. Hoskins;D. Norman;R. Beckmann;G. Long

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相似文献

用两种不同的方法从两个文库中克隆了编码S前体蛋白的人肝脏基因。根据阳性克隆的频率,S蛋白的丰度约为0.01%。经电泳法分离的Poly(A)+RNA的印迹杂交显示,主要的mRNA长约4千碱基,两种次要形式的长度分别约为3.1和2.6千碱基。其中一个克隆包含一个编码676个氨基酸的S蛋白前体的片段,以及分别为108和1132个核苷酸的5‘和3’非编码序列,以及3‘端的聚(A)区。除了5‘非编码区,78%的核苷酸是鸟苷或胞嘧啶,其余的DNA都是腺苷和胸腺嘧啶核苷(60%)。该蛋白前体由41个氨基酸的“先导”肽和635个氨基酸组成,分别对应于成熟蛋白S和依赖维生素K的同源血浆蛋白。结果表明,该蛋白由以下结构域组成:一个富含37个氨基酸的氨基端γ-羧基谷氨酸富集区;一个富含羟基氨基酸的36个氨基酸连接区;4个长约45个氨基酸的类表皮生长因子片段;以及一个结构未知、功能未知的387个氨基酸残基的羧基末端结构域。
Human liver cDNA encoding a protein S precursor was isolated from two cDNA libraries by two different techniques. Based upon the frequency of positive clones, the abundance of mRNA for protein S is approximately 0.01%. Blot hybridization of electrophoretically fractionated poly(A)+ RNA revealed a major mRNA approximately 4 kilobases long and two minor forms of approximately 3.1 and approximately equal to 2.6 kilobases. One of the cDNA clones contains a segment encoding a 676 amino acid protein S precursor, as well as 108 and 1132 nucleotides of 5' and 3' noncoding sequence, respectively, plus a poly(A) region at the 3' end. The cDNAs are adenosine plus thymidine-rich (60%) except for the 5' noncoding region, where 78% of the nucleotides are guanosine or cytosine. The protein precursor consists of a 41 amino acid "leader" peptide followed by 635 amino acids corresponding to mature protein S. Comparison of the mature protein region with homologous vitamin K-dependent plasma proteins shows that it is composed of the following domains: an amino-terminal gamma-carboxyglutamic acid-rich region of 37 amino acids; a 36 amino acid linker region rich in hydroxy amino acids; four epidermal growth factor-like segments, each approximately 45 amino acids long; and a 387 amino acid carboxyl-terminal domain of unrecognized structure and unknown function.
DOI: 10.1016/s0021-9258(19)68566-2
发表时间: 1981-11
期刊: The Journal of biological chemistry
影响因子: --
作者:
F. Walker
通讯作者: F. Walker
大鼠骨γ-羧基谷氨酸蛋白的前肽与其他维生素K依赖性蛋白前体具有同源性。
DOI: 10.1073/pnas.82.18.6109
发表时间: 1985
影响因子: 11.1
作者:
Pan,LC;Price,PA
通讯作者: Price,PA
DOI: 10.1172/jci111632
发表时间: 1984-01-01
影响因子: 15.9
作者:
COMP, PC;NIXON, RR;ESMON, CT
通讯作者: ESMON, CT
DOI: 10.1073/pnas.83.8.2412
发表时间: 1986-04-01
影响因子: 11.1
作者:
HAGEN, FS;GRAY, CL;DAVIE, EW
通讯作者: DAVIE, EW
DOI: 10.1056/nejm198412133112401
发表时间: 1984-01-01
影响因子: 158.5
作者:
COMP, PC;ESMON, CT
通讯作者: ESMON, CT