introduction: hepatitis c virus (hcv) infection is a major public health problem which influences about 170 million people worldwide. different types of vaccines have been designed using hcv structural proteins to control the viral infection. the core nucleocapsid protein is one of the most conserved proteins and a desirable target for hcv vaccines, especially the protein-based vaccines. in cur...

Expression of recombinant proteins and drugs in Pichia pastoris has been in development since the late 1980s and the number of recombinant proteins produced in P. pastoris has increased significantly in the past several years. Unlike bacteria, this strain is capable of producing complex proteins with post translational modifications such as correct folding, glycosylation, proteolytic maturation...

background and aims: among the bacterial agents, the most common cause of diarrheal disease is entrotoxigenic escherichia coli. letal toxin b (ltb) subunit of lt toxin could induce six-month immunity. clostridium botulinum causes botulism disease. bont/a-hc toxin subunit could induce two years immunity against this disease. it seems that the immunogenicity potency of these two subunits may infl...

background: improving the performance of hiv diagnosis assays is one of the most important ways to reduce hiv transmission. because of the high mutation rate of hiv, it is critical to use the conserved proteins to develop diagnostic immunoassay methods. because integrase is one of the most conserved proteins of hiv, it may be a good target for this purpose. in this paper cloning, purification a...

background one disadvantage of expressing heterologous proteins in escherichia coli is that the proteins are frequently expressed as insoluble inclusion bodies. to avoid this problem, heterologous proteins are typically expressed as a fusion protein. maltose binding protein (mbp) is one of the widely used partners for production of recombinant fusion proteins in e. coli. mbp is among the most e...