绵羊ILK基因的克隆及其在毛囊生长期的表达

doi:10.3724/SP.J.1005.2012.00719

遗传 ›› 2012, Vol. 34 ›› Issue (6): 719-726.doi: 10.3724/SP.J.1005.2012.00719

绵羊ILK基因的克隆及其在毛囊生长期的表达

杨剑波^1,2,3, 甘尚权^2,3, 杨永林^2,3, 张红琳⁴, 宋天增⁵, 冯静⁵, 杨井泉^2,3, 高磊^2,3, 石国庆^1,2,3, 沈敏^2,3

1. 石河子大学动物科技学院, 石河子 832000 2. 新疆农垦科学院畜牧兽医研究所, 石河子 832000 3. 新疆兵团绵羊繁育生物技术重点实验室, 石河子 832000 4. 南京晓庄学院生物化工与环境工程学院, 南京 211171 5. 西藏自治区农牧科学院畜牧兽医研究所, 拉萨850009

收稿日期:2012-01-14 修回日期:2012-05-07 出版日期:2012-06-20 发布日期:2012-06-25
通讯作者: 石国庆 E-mail:nkkxyxms@163.com
基金资助:
转基因生物新品种培育重大专项(编号：2009ZX08008-001B; 2011ZX08008-001), 国家高技术研究发展计划项目(863计划)(编号：2008AA101011), 兵团种质资源创新与功能基因发掘及利用专项(编号：2012BB044), 973计划前期研究专项(编号：2009CB125907)和国家自然科学基金项目(编号：30960249)资助

Cloning and expression in follicle anagen of ILK gene in sheep

YANG Jian-Bo^1,2,3, GAN Shang-Quan^2,3, YANG Yong-Lin^2,3, ZHANG Hong-Lin⁴, SONG Tian-Zeng⁵, FENG Jing⁵, YANG Jing-Quan^2,3, GAO Lei^2,3, SHI Guo-Qing^1,2,3, SHEN Min^2,3

1. College of Animal Science and Technology, Shihezi University, Shihezi 832000, China 2. Animal Husbandry and Veterinary Institute, Xinjiang Academy of Agricultural And Reclamation Science, Shihezi 832000, China 3. Key Lab of Sheep Breeding and Reproduction, Xinjiang Agroreclamation Academy of Sciences, Shihezi 832000, China 4. School of Biochemical and Environmental Enginerring, Nanjing Xiaozhuang College, Nanjing 211171, China 5. Insitute of Animal Husbandry and Veterinary, Tibet Academy of Agriculture and Animal Science, Lhasa 850009, China

Received:2012-01-14 Revised:2012-05-07 Online:2012-06-20 Published:2012-06-25

摘要/Abstract

摘要： 整合素连接激酶(ILK)是一种支架蛋白, 在毛囊发育过程中发挥重要作用。文章利用PCR技术, 首次获得绵羊ILK基因的编码区全长序列, 并进行了生物信息学分析; 同时对该基因的组织表达谱及其在不同绵羊品种毛囊生长期皮肤组织中的表达变化进行了研究。结果表明, 绵羊ILK 基因ORF全长1 359 bp, 编码452个氨基酸。ILK蛋白结构经预测含有3个锚定重复序列和1个激酶结构域, 并存在多个磷酸化位点和蛋白激酶C的磷酸化位点。半定量RT-PCR结果显示该基因在绵羊心脏、肝脏、脾脏、肺脏、肾脏、骨骼肌、皮肤和小肠组织中均有表达, 皮肤、脾脏和肝脏中表达量较高; 实时荧光定量PCR结果表明在3~5月份(毛囊生长起始期), ILK基因在中国美利奴超细型和哈萨克羊皮肤组织中的表达水平较高并均呈逐月上升趋势; 在6~10月份(毛囊生长期), 中国美利奴超细型皮肤ILK基因表达水平高于同期的哈萨克羊。分析认为ILK可能在调控绵羊次级毛囊生长发育过程中起一定作用。

关键词: 整合素连接激酶, 基因克隆, 毛囊, 绵羊

Abstract: Integrin linked kinase (ILK) is a scaffold protein, which plays important roles in hair follicle development. The cDNA sequence of novel ILK gene in sheep was cloned by PCR method and analyzed by bioinformatics. Tissue expression profiling in eight tissues and temporal profiling at different wool follicle anagen stages in skin was analyzed. The results showed that the whole open reading frame (ORF) of ILK gene was 1 359 bp in length, which encoded 452 amino acids. Bioinformatic analysis indicated that the secondary structure of ILK gene was mainly made up of three ankyrin repeats and a kinase domain, and there were multiple phosphorylation and Protein Kinase C sites in this gene. The RT-PCR result confirmed that ILK mRNA was expressed in heart, liver, spleen, lung, skeletal muscle, skin, and small intestine, and the expression level was much higher in skin, spleen, and liver than others. The q-PCR analysis demon-strated that the expression level of ILK was significantly increased from March to May (early follicle anagen initia-tion) in both sheep breeds, Chinese Merino and Kazakh sheep, and there were certain differences from June to October be-tween the two breeds. The above results indicated that ILK gene may play key roles in regulating secondary follicle growth.

Key words: hair follicle, sheep, integrin-linked kinase, gene cloning

杨剑波，甘尚权，杨永林，张红琳，宋天增，冯静，杨井泉，高磊，石国庆，沈敏. 绵羊ILK基因的克隆及其在毛囊生长期的表达[J]. 遗传, 2012, 34(6): 719-726.

YANG Jian-Bo, GAN Shang-Quan, YANG Yong-Lin, ZHANG Hong-Lin, SONG Tian-Zeng, FENG Jing, YANG Jing-Quan, GAO Lei, SHI Guo-Qing, SHEN Min. Cloning and expression in follicle anagen of ILK gene in sheep[J]. HEREDITAS, 2012, 34(6): 719-726.

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绵羊ILK基因的克隆及其在毛囊生长期的表达

Cloning and expression in follicle anagen of ILK gene in sheep

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