The present study explores the concept of hybrid pertactin (PRN) molecules for immunizing against Bordetella pertussis. New molecules were designed using an additive/inclusive approach that comprehends the complete sequences/ regions of two different types of pertactin (Prn). PRN molecules bear the two variable R1 regions from Prn1 and Prn2. The genes of Prn1, Prn2 and six variants of PRN were ...

Dengue virus (DENV) capsid (C) protein is one of the three structural proteins that form a mature virus. The main challenge impeding the study of this protein is to generate pure non-truncated, full-length C proteins for structural and functional studies. This is mainly due to its small molecular weight, highly positively charged, stability and solubility properties. Here, we report a strategy ...

Interleukin 21 (IL-21) is a novel type I cytokine that is significantly homologous to IL-2, IL-4 and IL-15. Its receptor complex contains gammac chain which is also a component of receptors for IL-2, IL-4, IL-7, IL-9 and IL-15, so there may be overlapping or relevancies in their biological functions. IL-21 is capable of co-stimulating mature T cells, B cells, NK cells, and of stimulating CD16 e...

globally, brucella melitensis and b. abortus are the most common cause of human brucellosis. the outer membrane protein 31 (omp31) and l7/l12 are immunodominant and protective antigens conserved in human brucella pathogens which are considered as potential vaccine candidates. we aimed to design the fusion protein from brucella l7/l12 and truncated omp31proteins, in silico , clone the fusion in ...

the aim of this study was to produce a recombinant protein consisting of the catalytic and translocation domains of diphtheria toxin for its later application as a vaccine candidate against corynebacterium diphtheria. to achieve this goal, at first, the amino acid sequence of dt386 was used for prediction of t and b cell epitopes using on-line servers. the dt386 coding sequence was synthesized ...

Brucellosis is a debilitative disease that imposes costs on both economy and society. It is shown that although the vaccine can prevent abortion, it does not provide complete protection against infection. In Iran, Brucella melitensis is a common causative agent for brucellosis and BP26 protein of this bacterium having a good antigenesity and an important vaccine candidate. In this study B. meli...