Open AccessCrystallization and preliminary X‐ray crystallographic studies of swine CD8α
Author(s) -
Zhang Nianzhi,
Qi Jianxun,
Pan Xiaocheng,
Chen ZhaoSan,
Li Xin,
Gao Feng,
Xia Chun
Publication year - 2011
Publication title -
acta crystallographica section f
Language(s) - English
Resource type - Journals
ISSN - 1744-3091
DOI - 10.1107/s1744309111020392
Subject(s) - crystallization , crystallography , x ray , materials science , chemistry , physics , optics , organic chemistry
CD8αα homodimers or CD8αβ heterodimers form on the T‐cell surface, where they are essential as co‐receptors for MHC class I molecules in activation of the CTL response. To date, swine have been found to show the highest percentage of lymphocytes with surface expression of CD8α. Crystallographic analysis of swine CD8α (sCD8α) to 1.8 Å resolution revealed that the crystals belonged to space group P 3 2 21, with unit‐cell parameters a = 80.97, b = 80.97, c = 95.19 Å. The Matthews coefficient and the solvent content were calculated to be 3.23 Å 3 Da −1 and 61.89%, respectively. These results may aid further structural and functional analyses of sCD8α.