Expression, purification, crystallization and preliminary X-ray diffraction analysis of swine leukocyte antigen 2 complexed with a CTL epitope AS64 derived from Asia1 serotype of foot-and-mouth disease virus

Abstract Background Currently, the structural characteristics of the swine major histocompatibility complex (MHC) class I molecule, also named swine leukocyte antigen class I (SLA-I) molecule need to be further clarified. Results A complex of SLA-I constituted by an SLA-2*HB01 molecule with swine β2...

Full description

Bibliographic Details
Main Authors: Feng-shan Gao, Lei Feng, Ping Jiang, Zi-bin Li, Hua Gao, Xiao-xin Zhai, Zong-hui Zhang, Xiao Hu
Format: Article
Language:English
Published: BMC 2018-12-01
Series:BMC Veterinary Research
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12917-018-1742-3
Description
Summary:Abstract Background Currently, the structural characteristics of the swine major histocompatibility complex (MHC) class I molecule, also named swine leukocyte antigen class I (SLA-I) molecule need to be further clarified. Results A complex of SLA-I constituted by an SLA-2*HB01 molecule with swine β2-microglobulin and a cytotoxic T lymphocyte (CTL) epitope FMDV-AS64 (ALLRSATYY) derived from VP1 protein (residues 64–72) of Asia 1 serotype of foot-and-mouth disease virus (FMDV) was expressed, refolded, purified and crystallized. By preliminary X-ray diffraction analysis, it was shown that the diffraction resolution of the crystal was 2.4 Å and the space group belonged to P212121 with unit cell parameters a = 48.37, b = 97.75, c = 166.163 Å. Conclusion This research will be in favor of illuminating the structural characteristics of an SLA-2 molecule associated with a CTL epitope derived from Asia1 serotype of FMDV.
ISSN:1746-6148