中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (50): 8184-8189.doi: 10.3969/j.issn.2095-4344.2015.50.026

• 干细胞基础实验 basic experiments of stem cells • 上一篇    下一篇

血小板CD36新等位基因1142T>G序列分析及确认

林凤秋1,2 ,3,李晓丰1,2,3,邵超鹏4,李剑平1,2,3,5   

  1. 1辽宁省血液中心输血医学研究所,辽宁省沈阳市 110044;2辽宁省血液安全研究重点实验室,辽宁省沈阳市 110044;3沈阳市血液安全研究重点实验室,辽宁省沈阳市 110044;4深圳市第二人民医院,广东省深圳市 518035;5沈阳市细胞应用研究中心,辽宁省沈阳市 110044
  • 收稿日期:2015-11-04 出版日期:2015-12-03 发布日期:2015-12-03
  • 通讯作者: 李剑平,博士,主任医师,辽宁省血液中心输血医学研究所,辽宁省沈阳市 110044;辽宁省血液安全研究重点实验室,辽宁省沈阳市 110044;沈阳市血液安全研究重点实验室,辽宁省沈阳市 110044;沈阳市细胞应用研究中心,辽宁省沈阳市 110044
  • 作者简介:林凤秋,女,1977年生,汉族,浙江省台州市人,2006年日本东京农工大学毕业,博士,副主任技师,主要从事分子生物学和输血医学等方面的研究。
  • 基金资助:

    沈阳市科学技术计划项目(F13-220-9-16)

Analysis and identification of a novel CD36 allele, 1142 T>G

Lin Feng-qiu1, 2, 3, Li Xiao-feng1, 2, 3, Shao Chao-peng4, Li Jian-ping1, 2, 3, 5   

  1. 1Transfusion Medicine Institute, Liaoning Blood Center, Shenyang 110044, Liaoning Province, China; 2Key Laboratory of Blood Safety Research of Liaoning, Shenyang 110044, Liaoning Province, China; 3Key Laboratory of Blood Safety Research of Shenyang, Shenyang 110044, Liaoning Province, China; 4the Second People’s Hospital of Shenzhen, Shenzhen 518035, Guangdong Province, China; 5Shenyang Research Center for Cell Application, Shenyang 110044, Liaoning Province, China
  • Received:2015-11-04 Online:2015-12-03 Published:2015-12-03
  • Contact: Li Jian-ping, M.D., Chief physician, Transfusion Medicine Institute, Liaoning Blood Center, Shenyang 110044, Liaoning Province, China; Key Laboratory of Blood Safety Research of Liaoning, Shenyang 110044, Liaoning Province, China; Key Laboratory of Blood Safety Research of Shenyang, Shenyang 110044, Liaoning Province, China; Shenyang Research Center for Cell Application, Shenyang 110044, Liaoning Province, China
  • About author:Lin Feng-qiu, M.D., Associate chief technician, Transfusion Medicine Institute, Liaoning Blood Center, Shenyang 110044, Liaoning Province, China; Key Laboratory of Blood Safety Research of Liaoning, Shenyang 110044, Liaoning Province, China; Key Laboratory of Blood Safety Research of Shenyang, Shenyang 110044, Liaoning Province, China
  • Supported by:

    the Science and Technology Foundation of Shenyang, No. F13-220-9-16

摘要:

背景:作为血小板上的主要抗原之一,CD36抗原又被称为血小板糖蛋白Ⅳ,其基因变异会导致CD36抗原缺失。
目的:序列分析并确认1例CD36抗原新等位基因。
方法:提取外周血样本DNA,应用聚合酶链式反应扩增CD36基因的12个编码区序列片段,应用直接测序法对目的片段的序列进行检测。所得序列与基因库中编号为NG_008192的标准序列进行比对分析,以确定新的基因突变。
结果与结论:被检样本在第12外显子的1142位发生T>G的碱基突变,其他外显子序列与标准序列一致。检索国际基因数据库GenBank和美国国立生物技术信息中心(National Center for Biotechnology Information,NCBI),均未发现关于1142 T>G突变的数据和报道,因此为国际上首次确认,上报GenBank获得登录号:KM275213。1142 T>G突变导致第381位氨基酸由亮氨酸(Leu,L)改变为丝氨酸(Ser,S),两者在亲/疏水性和极性上差异较大,且381位氨基酸所在区域为高度保守区域,因此推测该突变会使蛋白活性降低甚至消失。 

 

关键词: 干细胞, 组织工程, 新等位基因, CD36基因, 基因突变, 1142 T>, G, 序列分析

Abstract:

BACKGROUND: As a main antigen of platelet, CD36 antigen is also known as platelet glycoprotein IV (GPIV). The mutation of CD36 gene may result in deficiency of the antigen.
OBJECTIVE: To identify a novel CD36 allele.
METHODS: DNA was isolated from peripheral blood sample, and 12 coding regions of CD36 gene were amplified by PCR. Sequencing-based typing was used to analyze the sequence of the target regions. The derived sequences were aligned with the standard sequence of NG_008192 in GenBank to identify the novel allele.
RESULTS AND CONCLUSION: 1142 T>G mutation was detected in exon 12 of CD36 gene of the proband, and the other regions were consistent with the standard sequence. No data or report about 1142 T>G was found in GenBank or National Center for Biotechnology Information (NCBI), and thus it was reported to GenBank and received by number KM275213. 1142 T>G results in amino acid 381 Leu>Ser of the CD36 protein. There is a big
difference in hydrophilia and polarity of the two amino acids. Also the 381 amino acid locates in highly conserved region. Thus it is speculated that 1142 T>G may reduce or vanish the activity of the protein.  

 

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