Microsome antigen of Schistosoma japonicum II. Extraction, fractionation and chemical and immunological properties of microsome antigens of adult worm.

Microsome antigens were extracted from homogenate of adult S. japonicum by dif-ferential centrifugation and fractionated by Sepharose CL-2B chromatography. The crudemicrosome antigen (JAMAC), the urea soluble fraction (JMC) and the purified     

Expression,purification and immunocharacteristics of recombination UreB protein of H.pylori

INTRODUCTIONHelicobacter pylori(H.pylori)is associated withthe development of chronic gastritis,peptic ulcerand gastric cancer and gastric MALTlymphoma.H.pylori has many antigens,including urease,heat shock protein and vacuolatingcytotoxin and so on,and urease is an importantfactor in the colonization of the gastric mucosa and