scholarly journals Construction of a fusion gene containing hepatitis B virus L gene and Mycobacterium tuberculosis Ag85B gene and its expression in Pichia pastoris

2011 ◽  
Vol 10 (60) ◽  
pp. 12840-12846
Author(s):  
Li Junwu ◽  
Gong Junyuan ◽  
Liu Xin ◽  
Ye Qiuping ◽  
Song Dong ◽  
...  
BMB Reports ◽  
2005 ◽  
Vol 38 (6) ◽  
pp. 683-689 ◽  
Author(s):  
Bo Hu ◽  
Minjian Liang ◽  
Guoqiang Hong ◽  
Zhaoxia Li ◽  
Zhenyu Zhu ◽  
...  

2020 ◽  
Vol 2020 (3) ◽  
pp. 56-59

The aim of this study is determination of optimal fermentation conditions of the Pichia pastoris yeast expressing the recombinant Pres2-S protein of hepatitis B virus (HBV). For this purpose we investigated the main factors influencing for the cultivation of recombinant strain of the yeast Pichia pastoris pPIC3,5-S-HBsAg - the composition of the nutrient medium, pH and dissolved oxygen (DO). As a result, by enzyme-linked immunosorbent assay (ELISA) the optimal concentration of methanol ≈1.0 %, which is the initiator and the only source of carbon for protein expression in the Mut+ phenotype Pichia pastoris yeast cells was determined. In the selected conditions at the end of the fermentation process, the wet biomass of yeast cells was 420 g/l.


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