introduction: the interest in probiotic products have been increased recently by the consumers. milk and dairy products are natural sources of b group vitamins in the human diet. this study was carried out in order to investigate the level of riboflavin (vitamin b2) and niacin (vitamin b3) in probiotic yogurt and the results were compared with the traditional yogurt during refrigerated storage....

Plexins are the primary receptors of semaphorins, and participate in the majority of intracellular pathways triggered by semaphorins, including the regulation of cell adhesion and the motility of numerous cell types. Recently, several studies have reported that plexins can significantly affect different aspects of cancer cell biology, and the aberrant expression of plexins has been observed in ...

Background & Aims: The most significant cause of infertility in men is the genetic deletion in the azoospermia factor (AZF) region that is caused by the process of intra- and inter-chromosomal homologous recombination in amplicons. Homologous recombination could also result in partial deletions in AZF region. The aim of this research was to determine the association between the partial AZFc del...

The timing mechanism for mitotic progression is still poorly understood. The spindle assembly checkpoint (SAC), whose reversal upon chromosome alignment is thought to time anaphase [1-3], is functional during the rapid mitotic cycles of the Drosophila embryo; but its genetic inactivation had no consequence on the timing of the early mitoses. Mitotic cyclins-Cyclin A, Cyclin B, and Cyclin B3-inf...

Recombinant immunotoxins were made by fusing the Fab domain of monoclonal antibody (MAb) B3 to PE38M, a truncated mutant form of Pseudomonas exotoxin (PE). The recombinant toxins were made in Escherichia coli by fusing genes encoding the antibody domains to a gene encoding the mutant form of PE. MAb B3 binds to a carbohydrate antigen found on many kinds of carcinomas. Immunotoxins in which MAb ...

The hexapeptides AcSer-Glu-Glu-Glu-Val-Glu and Ser-Glu-Glu-Glu-Glu-Glu, reminiscent of the sites phosphorylated by type-2 casein kinase TS in troponin T and glycogen synthase, respectively, have been synthesized and tested as phosphorylatable substrates for casein kinase TS as well as for other protein kinases. Both peptides are readily phosphorylated by casein kinase TS but not, to any detecta...

Bacteriophage B3 is a transposable phage of Pseudomonas aeruginosa. In this report, we present the complete DNA sequence and annotation of the B3 genome. DNA sequence analysis revealed that the B3 genome is 38,439 bp long with a G+C content of 63.3%. The genome contains 59 proposed open reading frames (ORFs) organized into at least three operons. Of these ORFs, the predicted proteins from 41 OR...