华北农学报 ›› 2023, Vol. 38 ›› Issue (4): 190-196. doi: 10.7668/hbnxb.20193960

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合作猪StAR基因克隆、组织表达及生物信息学分析

闫尊强1, 计亚楠1, 王鹏飞1, 张博1, 石海霞1, 滚双宝1,2   

  1. 1 甘肃农业大学 动物科学技术学院,甘肃 兰州 730070
    2 甘肃省现代养猪工程技术研究中心,甘肃 兰州 730070
  • 收稿日期:2023-03-17 出版日期:2023-08-28
  • 通讯作者:
    滚双宝(1967—),男,甘肃张掖人,教授,博士,博士生导师,主要从事猪育种理论与技术研究。
  • 作者简介:

    闫尊强(1991—),男,甘肃天水人,讲师,博士,主要从事猪育种理论与技术研究。

  • 基金资助:
    甘肃省教育科技创新项目(GSSYLXM-02); 鲁甘科技协作项目(YDZX2021113); 2022年现代丝路寒旱农业科技支撑项目(GSLK-2022-10)

Cloning,Tissue Expression and Bioinformatics Analysis of StAR Gene from Hezuo Pig

YAN Zunqiang1, JI Yanan1, WANG Pengfei1, ZHANG Bo1, SHI Haixia1, GUN Shuangbao1,2   

  1. 1 College of Animal Science and Technology,Gansu Agricultural University,Lanzhou 730070,China
    2 Gansu Research Center for Swine Production Engineering and Technology,Lanzhou 730070,China
  • Received:2023-03-17 Published:2023-08-28

摘要:

旨在对合作猪StAR基因CDS区进行克隆及生物信息学分析,采用RT-qPCR方法检测StAR基因在不同组织中的表达量,以揭示其功能。结果发现,合作猪StAR基因CDS区长858 bp,编码285个氨基酸,与猪参考序列相比,第572位点处的A突变为G,导致第191位的赖氨酸突变成精氨酸,为错义突变,第791位点处插入1个碱基C,后续的20个氨基酸发生改变,导致移码突变;蛋白分子量90.95 ku,理论等电点8.87;消光系数33 835,不稳定系数41.49;含1个N-糖基化位点,二级结构主要由α螺旋和无规则卷曲构成,二级结构与三级结构基本一致;合作猪与猪、绵羊和黄牛StAR基因核苷酸序列相似性分别为99.77%,90.45%,91.78%;进化树结果显示,合作猪与猪亲缘关系最近,表明StAR基因编码序列具有种属特异性;StAR蛋白是不稳定的亲水性蛋白,无信号肽和跨膜区;StAR基因在脾、肾、肺等组织中均有表达,睾丸表达量较高,表明可能与合作猪睾丸发育有关。

关键词: 合作猪, StAR基因, 生物信息学, 组织表达

Abstract:

The purpose of this paper was to clone the CDS region of StAR gene,perform bioinformatics and detect StAR gene expression level among different tissues using RT-qPCR in order to revel its function.The results showed that the CDS region of Hezuo pig StAR gene was 858 bp in length,encoding 285 amino acids.Compared to the reference sequence of pig,the A at the 572nd point mutation to G(leading to lysine mutation to arginine at the 191st point)was missense mutation and insertion of a base C at the 791st point(causing 20 amino acids mutation)was frame shift mutation,respectively.Molecular mass was about 90.95 ku and theoretical isoelectric point was 8.87;extinction coefficient was 33 835 and unstable coefficient was 41.49.Additionally,it contained one N-sugar-based site and secondary structure was mainly composed of α spiral and irregular curling.The secondary structure was similar to the tertiary structure.Lastly,the similarity of StAR nucleic acid sequences among Hezuo pig and Sus scrofa, Ovis aries, Bos taurus was 99.77%, 90.45% and 91.78%,respectively.The phylogenetic tree result showed that Hezuo pig was closed to pig.StAR gene expressed in these tissues,such as spleen,kidney,lung.Among these tissues,testis have higher expression,indicating that it may be related to the development testis in Hezuo pig.

Key words: Hezuo pig, StAR gene, Bioinformatics, Tissue expression

引用本文

闫尊强, 计亚楠, 王鹏飞, 张博, 石海霞, 滚双宝. 合作猪StAR基因克隆、组织表达及生物信息学分析[J]. 华北农学报, 2023, 38(4): 190-196. doi: 10.7668/hbnxb.20193960.

YAN Zunqiang, JI Yanan, WANG Pengfei, ZHANG Bo, SHI Haixia, GUN Shuangbao. Cloning,Tissue Expression and Bioinformatics Analysis of StAR Gene from Hezuo Pig[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(4): 190-196. doi: 10.7668/hbnxb.20193960.

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