TAN Bing,ZHANG De-chun,WANG Zheng-qing.Expression, purification and bioactivity identification of recombinant SCR15-18 domain of human soluble complement receptor type 1[J].J Amry Med Univ (J Third Mil Med Univ),2007,29(10):892-895.
TAN Bing,ZHANG De-chun,WANG Zheng-qing.Expression, purification and bioactivity identification of recombinant SCR15-18 domain of human soluble complement receptor type 1[J].J Amry Med Univ (J Third Mil Med Univ),2007,29(10):892-895.DOI:
purified and refolded SCR15-18 of human soluble complement receptor type 1 (sCR1-SCR15-18) protein. Methods The expression of recombinant pET32-sCR1-SCR15-18 in E.coli.. BL21 was induced by IPTG of different concentrations for different time period under different temperatures and the bacteria were split by sonication. The sCR1-SCR15-18 protein was purified by Ni
2+
-NTA resin affinity chromatography. The purified protein was refolded under different conditions. Then the bioactivity of the protein was analyzed. Results The sCR1-SCR15-18 protein of high expression
purity and bioactivity was attained. Conclusion The parameters of expression
purificati
on and refolding of sCR1-SCR15-18 protein were optimized