beta-Aspartyl-epsilon-lysine, a peptide of the fecal contents of axenic mice.

β-Aspartyl- -lysine, a peptide of the fecal contents of axenic mice

Secondary Structure Effects on the Acidity of Histidine and Lysine-Based Peptides Model; A Theoretical Study

     In this study, the effect of the secondary structure of the protein on the acid strength of three structures of random (R), alpha helix (α) and beta sheet (b) were investigated theoretically. These structures are related to the cationic amino acids of histidine and lysine in the polypeptide chain of eight-glycine residue. Computational methods at the HF, B3LYP, X3LYP and M05-2X levels in t...

ON ( $alpha, beta$ )-FUZZY Hv-IDEALS OF H_{v}-RINGS

Using the notion of “belongingness ($epsilon$)” and “quasi-coincidence (q)” of fuzzy points with fuzzy sets, we introduce the concept of an ($ alpha, beta$)- fuzzyHv-ideal of an Hv-ring, where , are any two of {$epsilon$, q,$epsilon$ $vee$ q, $epsilon$ $wedge$ q} with $ alpha$ $neq$ $epsilon$ $wedge$ q. Since the concept of ($epsilon$, $epsilon$ $vee$ q)-fuzzy Hv-ideals is an important and ...

In silico fusion of epsilon and beta toxin genes of Clostridium perfringens types D and B

Fusion protein technology represents the strategy to achieve rapid, efficient, and cost-effective proteinexpression. Epsilon and Beta toxins are the most potent Clostridial toxins and cause disease in animals.This study describes in silico fusion of Clostridium perfringens types D and B epsilon and beta toxin genesthat was used for cloning in E.coli. The etx and cpb genes were...

AXENIC CULTURE AND CRYOPRESERVATION OF GIARDIA LAMBLIA ISOLATED IN IRAN

Giardia lamblia cysts were isolated from fecal samples of 55 symptomatic and asymptomatic patients with giardiasis. The cysts were harvested and purified using the sucrose gradient method. IS The excystation of G. lamblia was obtained by treating them with HCI (0.01N)', then they were transferred on to modified TYI-S-33 medium. Out of 55 stool samples 17 cases were excysted with a rate of ...