background: vp4 protein is as spikes on rotavirus outer capsid shell which is responsible for virus attachment to the host. vp4 induces production of neutralizing antibodies which could be used for serotyping of different isolates. methods: simian rotavirus sa11 gene 4 cdna was cloned into a cloning plasmid pdonrtm by recombination reaction using clonase ii enzyme mix. the resulting clone was c...

pollen from mesquite (prosopis juliflora) is one of the important causes of immediate hypersensitivity reactions in the arid and semi-arid regions of the world. the aim of present study is to produce and purify the recombinant form of allergenic ole e 1-like protein from the pollen of this allergenic tree. immunological and cross-inhibition assays were performed for the evaluation of ige-bindin...

conclusions this is the first report of expression of cmv cp gene in iran, which is important for the preparation of anti-cmv antibody and paving the way for the use of the virus coat protein as a nanomaterial. results the identity of the expressed protein was confirmed by immunoassays such as western blot, dot-immunobinding assay (diba) and enzyme-linked immunosorbent assay (elisa) by the use ...

background: angiogenesis is an important process in various physiologic and pathologic states. the most significant stimulator of angiogenesis is vascular endothelial growth factor (vegf). in contrast, vasohibin1 acts as an angiogenesis inhibitor which specifically inhibits new vessels formation. the aim of the present study was cloning and expression of vasohibin1 gene in e. coli as well as pu...

background and objectives: brucella melitensis infection is still a major health problem for human and cattle in developing countries and the middle east. materials and methods: in this study, in order to screen immunogenic candidate antigens for the development of a brucella subunit vaccine, a cytoplasmic protein (dnak) and an outer membrane protein (omp31) of b. melitensis were cloned, expres...

background: there are only four drugs for treating african trypanosomiasis, a devastating disease in sub-saharan africa. with slow discovery of better drugs, vaccination is viewed as the best method of control. we previously showed that antibodies to native trypanosoma brucei brucei tubulin inhibit the growth of trypanosomes in culture. here, we aimed to determine the effect of antibodies to ba...

background:influenza virus is globally pathogenic and it is usually associated with zoonotic respiratory diseases. this virus has caused a number of pandemics with a high mortality rate. the non-structural (ns1) protein of influenza a viruses is a non-essential virulence factor that has multiple accessory functions during viral infection. this protein is highly conservative. it has been shown t...

alcanivorax borkumensis is a marine bacterium that has ability to grow on limited substrates that mainly is alkanes. the ability to use wide range of hydrocarbons is advantage of this bacterium to other marine community bacteria. a. borkumensis have two genetic systems for alkane biodegradation. the first system is alkane hydroxylase (alk-b1and alk-b2) and the second system is  cytochrome p450....

inhalation of pollens from different species of acacia is a common cause of respiratory allergy in tropical areas of the world. acacia farnesiana is commonly used as street trees in towns and ornamental shade trees in parks and gardens throughout arid and semi-arid regions of asia. this study aimed to produce and purify the a. farnesiana pollen profilin (aca f 2) and evaluate its nucleotide seq...

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