The recombinant protein from the extracts of stable transfected TG1 was purified by one step affinity chromatography. The molecular mass of the product, with RGS His6 tag, is 32 ku.

• 将该基因重组到表达型质粒pQE30中 ；表达的His6Tag Ag85B融合蛋白分子质量约 32ku .