Background and Aims: Enzybiotics are probably the future line of weapons against drug resistant bacteria. They lyse bacteria with the new mechanisms with few likelihood of generating resistance. LasA, which is secreted from Pseudomonas strains degrades Staphylococcus aureus (S. aureus) cell wall and has the potential to use against drug resistant S. aureus infections.  Materials and Metho...

Background and Aims: The novel approaches in influenza vaccination have targeted more conserved viral proteins such as nucleoprotein (NP) to provide cross protection against all serotypes of influenza A viruses. Influenza specific cytotoxic T lymphocytes (CTL) are able to lyse influenza-infected cells by recognition of NP, the major target molecule in virus for CTL responses. On the other hand,...

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 ...

objectives: enterotoxigenic escherichia coli (etec) is one of the most common agents of diarrhea among other bacterial agents. designing and producing vaccine against these bacteria is one of the major purposes of world health organization (who). due to presence of diverse clones of etec strains in the world, the use of global vaccines for etec infection is controversial. b subunit of heat labi...

PURPOSE TNF-α is an inflammatory cytokine with a key role in initiation of inflammatory responses. Anti-TNF-α antibodies are being used in clinic for the purpose of diagnosis and treatment due to their high specificity. The objective of the current study was to express and purify an anti-TNF-α scFv antibody identified by phage display technology. METHODS The DNA coding sequence of the identif...

Full-length mouse VAMP2-His 6 (pTW2) and the t-SNARE complex between mouse His 6-SNAP-25 and rat syntaxin 1A (pTW34) were expressed and purified as previously described (Melia et al., 2002; Weber et al., 2000). Rat syntaxin 4 and SNAP-23 expression vectors were generated in a similar way as neuronal SNAREs. The proteins were eluted into an OG buffer (25mM HEPES/KOH, pH 7.4, 400 mM KCl, 10% glyc...

conclusions our results showed that the recombinant protein produced by the pbad vector in the escherichia coli system was very efficient. background nontypeable haemophilus influenzae (nthi) is a significant pathogen in children, causing otitis media, sinusitis, conjunctivitis, pneumonia, and occasionally invasive infections. protein d (pd) belongs to the minor outer-membrane proteins of h. in...

Background Type 4 pili (T4P) is an important virulence factor of Pseudomonas aeruginosa (P. aeruginosa). T4P pass the outer membrane through a large oligomeric channel made of a single PilQ protein that is most highly conserved at their C-termini. To develop a functional vaccine that can be used in clinical application, the secretin domain of the PilQ (PilQ380-706) was produced as a recombinant...