Fig. 5From: Analysis of allergen components and identification of bioactivity of HSP70 in pollen of Populus deltoidesProkaryotic expression and purification of B9N9W6. 1: E. coli BL21- pET-28a (+). 2: E. coli BL21- pET-28a- B9N9W6. 3: purified product of B9N9W6Back to article page