《中国畜牧兽医》 ›› 2016, Vol. 43 ›› Issue (8): 2072-2080.doi: 10.16431/j.cnki.1671-7236.2016.08.021

• 生理生化 • 上一篇    下一篇

畜禽MHCⅠ分子抗原结合槽研究进展

郝福星1, 居元照2, 金红岩3, 封家旺3, 袁维峰4   

  1. 1. 江苏农牧科技职业学院, 泰州 225300;
    2. 高邮市农业委员会, 高邮 225600;
    3. 西藏职业技术学院, 拉萨 850030;
    4. 中国农业科学院北京畜牧兽医研究所, 北京 100193
  • 修回日期:2016-02-23 出版日期:2016-08-20 发布日期:2016-08-23
  • 通讯作者: 封家旺 E-mail:fengjiawang126@126.com
  • 作者简介:郝福星(1982-),男,江苏如皋人,硕士,讲师,主要从事动物医学专业科研与教学工作,E-mail:vethfx@163.com
  • 基金资助:

    中国农业科学院科技创新工程(ASTIP-IAS-11)

Research Progress on Livestock and Poultry MHCⅠAntigen Binding Groove

HAO Fu-xing1, JU Yuan-zhao2, JIN Hong-yan3, FENG Jia-wang3, YUAN Wei-feng4   

  1. 1. Jiangsu Animal Husbandry and Veterinary College, Taizhou 225300, China;
    2. Gaoyou Agriculture Committee, Gaoyou 225600, China;
    3. Tibet Vocational Technical College, Lhasa 850030, China;
    4. Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Revised:2016-02-23 Online:2016-08-20 Published:2016-08-23

摘要:

主要组织相容性复合体Ⅰ(major histocompatibility complex, MHCⅠ)结构的解析可直观地阐释其结合抗原表位的机理,进而有效利用其特异性细胞毒性T淋巴细胞(cytotoxic T lymphocyte, CTL)免疫应答。目前已报道的畜禽MHCⅠ精细结构包括牛(N*01301、N*01801)、猪(SLA-1*0401)和鸡(BF2*2101、BF2*0401、BF2*0201、BF2*1401),以上MHCⅠ复合体结构由α1、α2和α3共3个α链和β2m组成。其抗原结合槽多肽由A、B、C、D、E、F 6个口袋组成,一般B、F口袋决定了不同MHCⅠ分子结合不同性质的抗原多肽。鉴于同一物种不同的MHCⅠ等位基因及不同物种MHCⅠ基因的序列差异性,使得不同的MHCⅠ分子结合不同性质的抗原多肽片段,此外,不同MHCⅠ分子也可递呈同样的抗原多肽,实现不同MHCⅠ分子的交叉递呈。畜禽MHCⅠ的结构清晰地阐释其递呈抗原多肽的机理,促进了畜禽免疫学和疫苗应用的研究。

关键词: 畜; 禽; MHCⅠ; 抗原结合槽

Abstract:

The determination of major histocompatibility complex (MHC) classⅠcomplex structure can elucidate the antigen-binding mechanism,and then effectively utilize the specific CTL response.Currently,several MHCⅠstructures of the livestock and poultry are reported,containing cattle MHCⅠ allele (N*01301,N*01801),pig (SLA-1*0401) and chicken (BF2*2101,BF2*0401,BF2*0201 and BF2*1401).All above MHCⅠstructures are composed of α1,α2,α3 and β2m chains;And the antigen groove is consisted of six pockets (A,B,C,D,E and F).Generally speaking,how different MHCⅠ binds miscellaneous peptides depends on the B and F pockets.In addition,the MHCⅠsequences have intraspecific and interspecific differences,so the peptides are various for different MHCⅠmolecules.But,different MHCⅠmolecules also can present same peptide,implementing the peptides of cross-presentation.The determination of animal MHCⅠstructures will promote the immunology and vaccine application research.

Key words: livestock; poultry; MHC Ⅰ; antigen binding groove

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