Introduction: The main agents of sarcocystosis in cattle as an intermediate host include S. cruzi, S. hominis and S. hirsuta. A sensitive and specific tool such as molecular-based techniques would be necessary to identify the species. Case report: After collection of beef sample from Yazd slaughterhouse, DNA extraction was done with salting out method. The 18SrRNA gene as a specific target ...

Background: CDKN2A, encoding two important tumor suppressor proteins p16 and p14, is a tumor suppressor gene. Mutations in this gene and subsequently the defect in p16 and p14 proteins lead to the downregulation of RB1/p53 and cancer malignancy. To identify the structural and functional effects of mutations, various powerful bioinformatics tools are available. The aim of this study is the ident...

Introduction: Methicillin-resistant Staphylococcus aureus (MRSA) can cause serious and life-threatening hospital- and community-acquired infections. Colonized and infected patients represent the most important reservoir of MRSA in health care facilities. Therefore, in this study, MRSA isolates collected from Shohada Hospital in Tabriz were evaluated for the frequency of mecA gene and their anti...

staphylococcus aureus is a major causative pathogen of clinical and subclinical mastitis of dairy domestic ruminants. this agent produces a variety of extracellular toxins and virulence factors including toxic shock syndrome toxin-1 (tsst-1) which is the major cause of toxic shock syndrome (tss). in this study 58 s. aureus isolates obtained from 9 dairy herds in east and west azerbaijan prov...

With the specter of dwindling biotic diversity, need is increased for preservatio n of available germplasm . Plant germplasm may be preserved in a variety of ways including seed storage, cryopreservation, and tissue culture . A new method of germplasm preservatio n may be through the storage of DNA libraries, which maintain in test tubes the genes tha t encode life's diversity . This new area o...

S-II, also designated as TFIIS, was the first identified transcription elongation factor and is widely found in eukaryotes. Among known elongation factors, S-II has a characteristic biochemical activity: it facilitates the elongation process by allowing RNA polymerase II (RNAPII) to read through transcriptional blocks in vitro. While the biochemical and molecular mechanism of stimulating elonga...

coagulase-negative staphylococci (cons) are often associated with bovine mastitis and may be resistant to antimicrobial therapy. the aim of the current study was to investigate the presence of blaz (responsible for penicillin resistance) and meca (responsible for methicillin resistance) genes among 108 cons belonging to 9 different species isolated from bovine mastitis in seven dairy herds (h1-...