Abstract Arthrospira platensis is a cyanobacterium known for its widespread use as nutraceutical and food additive. Besides high protein content, this microorganism also endowed with several bioactivities related to health benefits in humans that make it candidate functional foods. These properties are strain culture condition dependent. We compared, terms of biomass productivity protein, C-phy...

Newcastle disease, designated a class A disease of poultry by the Office international des epizooties (OIE), is an acute infection caused virus (NDV). The merging envelope NDV with membrane target host cell key step in pathway, which driven concerted action two glycoproteins: haemagglutinin-neuraminidase (HN) and fusion (F) protein. When HN protein binds to surface receptor, F activated mediate...

Protein conformational fluctuations are highly complex and exhibit long-term correlations. Here, molecular dynamics simulations of small proteins demonstrate that these directly affect the protein's instantaneous diffusivity $D_I$. We find radius gyration $R_g$ exhibits $1/f$ fluctuations, synchronous with Our analysis demonstrates validity local Stokes-Einstein type relation $D_I\propto1/(R_g ...

background and aims: newcastle disease virus (ndv) infection have been established in at least 241species of birds representing 27 of the 50 orders of the class.ndv isolate were obtained from infected ostrich flock during the outbreaks of nd in iran 2012. the f gene fragment which codes the main functional region of the f protein was obtained by rt-pcr and sequenced. methods: from the pathotype...

Tobacco mosaic virus (TMV) is one of the devastating plant viruses in the world that infects more than 200 plant species. Movement protein plays a supportive role in the movement of other plant viruses, and viral coat protein is highly expressed in infected plants and affects replication and movements of TMV. In order to investigate genetic variation in the terminal fragment sequence in Iranian...

introduction: to determine an indicator for triclabendazole (tcbz) efficacy, alanine aminotransferase (alt) activity in fasciola hepatica (iranian isolate) parasite in presence and absence of tcbz was evaluated by an in vitro cultivation method. also, alt enzyme activity between none and parasitized-infected sheep liver tissues was assessed. method:  the sheep livers were collected and transfer...

human fascioliasis due to unknown species and animal fascioliasis caused by both or one of fasciola spp. are commonly seen in iran. to compare electrophoretic patterns of somatic and excretory-secretory antigens of f. hepatica and f. gigantica  by sodium dodecyl sulphate polyacrylamide gel electrophoresis (sds-page), the adult flukes were collected from infected slaughtered bovine livers. e/s a...

The hepatitis C virus (HCV) alternate reading frame protein or F protein of the HCV 1b genotype is a double-frameshift product of the HCV core protein. In order to assess the presence of antibodies specific for F protein and their clinical relevance in sera from HCV patients, we produced recombinant F protein and core protein of the HCV 1b genotype in Escherichia coli. An enzyme-linked immunoso...