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Cloning, Expression and Characterization of Translationally Controlled Tumor Protein (TCTP) Gene from Flatfish Turbot (S
A full-length cDNA encoding translationally controlled tumor protein of marine flatfish turbot (Scophthalmus maximus), SmTCTP, was isolated with rapid amplification of cDNA Ends (RACE). SmTCTP consisted of a 5' untranslated region (UTR) of 84 bp, a 3' UTR of 451 bp and an open reading flame (ORF) of 513 bp, encoding a protein of 170 amino acid residues, which contained two signature sequences of TCTP family. The 5'UTR of SmTCTP started with a 5'-terminal oligopyrimidine tract (5'-TOP), a typical feature for translationaily controlled mRNAs. The deduced amino acid sequence of SmTCTP was similar to the other known verte-brate TCTPs in a range of 58.8% to 64.1%. The length offish TCTPs was diverse among species, e.g., TCTP of turbot and sea perch (Lateolabrax japonicus) is 170 aa in length, while that of zebrafish (Danio rer/o) and rohu (Labeo rohita) is 171 aa in length. North-ern blot analysis revealed that SmTCTP has only one type of mRNA. Its expression level in albino skin was slightly higher than that in normal skin. We constructed the pET3Oa-SmTCTP expression plasmid. The recombinant protein of His-tag SmTCTP was over-expressed in E. coli, purified and identified with peptide mass fingerprinting. These results may pave the way of further inves-tigation of the biological function of TCTP in fish.
作 者： WANG Jian GUO Huarong ZHANG Shicui YIN Licheng GUO Bin WANG Shaojie 作者單位： College of Marine Life Sciences, Ocean University of China, Qingdao 266003, P. R. China 刊 名： 中國海洋大學(xué)學(xué)報（英文版） ISTIC 英文刊名： JOURNAL OF OCEAN UNIVERSITY OF CHINA 年，卷(期)： 2008 7(2) 分類號： P7 關(guān)鍵詞： translationally controlled tumor protein (TCTP) turbot RACE Northern blot expression peptide mass fingerprinting【Cloning, Expression and Characteriza】相關(guān)文章：
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