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首页> 外文期刊>Journal of genetics >cDNA cloning, structural analysis, SNP detection and tissue expression profile of the IGF1 gene in Malabari and Attappady Black goats of India
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cDNA cloning, structural analysis, SNP detection and tissue expression profile of the IGF1 gene in Malabari and Attappady Black goats of India

机译:印度马拉巴里和AttAppady黑山羊IGF1基因的cDNA克隆,结构分析,SNP检测和组织表达谱

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摘要

Insulin-like growth factor 1 (IGF1) plays an important role in growth, reproduction, foetal development and cell proliferation. The present study was conducted to clone and sequence the full-length coding sequence of the caprine IGF1 gene from Attappady Black and Malabari breeds, two indigenous goat breeds of south India, to analyse its structure, and to ascertain the relative abundance of IGF1 mRNA in different tissues. The caprine IGF1 cDNA (GenBank accession nos: KJ549851 and KJ549852) contained a 465-bp open reading frame encoding IGF1 protein with 154 amino acid residues. A novel SNP was detected in the 3'UTR region, g.931A > G. Genotyping was performed in 277 goats from the two genetic groups using the PCR-single strand conformational polymorphism (SSCP) and two genotypes, AA and AG were observed at this locus. IGF1 is a secretary pathway protein with 49 amino acid-long signal peptide with 19 phosphorylation sites. Caprine IGF1 amino acid sequence was 83-99% identical to other species with highest identity with the ruminants. Relative expression of IGF1 was highest in uterus and liver (P < 0.05), followed by oviduct and muscle. This work provided an important experimental basis for further research on the functions of IGF1 in goats.
机译:胰岛素样生长因子1(IGF1)在生长,繁殖,胎儿发育和细胞增殖中起重要作用。对本研究进行克隆并序列,从AttAppady Black和Malabari品种,南印度的两种土着山羊品种,分析其结构,并确定IGF1 mRNA中的相对丰度的全长编码序列不同的组织。 Caprine IGF1 cDNA(GenBank登录No.:KJ549851和KJ549852)含有465-BP开放阅读框,编码IGF1蛋白,具有154个氨基酸残基。在3'UTR区域中检测到一种新的SNP,G.931A> G.基因分型在277个遗传基团中,使用PCR单链构象多态性(SSCP)和两个基因型,AA和AG在两种基因组中进行这个轨迹。 IGF1是秘书通路蛋白,具有49个氨基酸长信号肽,具有19个磷酸化位点。 Caprine IGF1氨基酸序列与与反刍动物具有最高特性的其他物种相同。子宫和肝脏的IGF1的相对表达是最高的(P <0.05),然后是输卵管和肌肉。这项工作为进一步研究了山羊IGF1的职能提供了重要的实验基础。

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