BACKGROUND In all organisms, nutrients are primary regulators of signaling pathways that control transcription. In Saccharomyces cerevisiae, the Tor proteins regulate the transcription of genes sensitive to the quality of available nitrogen and carbon sources. Formation of a ternary complex of the immunosuppressant rapamycin, its immunophilin receptor Fpr1p and Tor1p or Tor2p results in the nuc...

this study was conducted to choose the best species for plantation on a poor drainage soil in southern coast of caspian sea, iran. nutrient concentrations in live and senescent leaves and soil properties were compared among alnus subcordata c.a.mey (n-fixing tree), populus deltoides­ marsh. (non n-fixing tree)and taxodium distichum (l.) rich. (coniferous tree) plantations. in each of these plan...

Bacterial and viral triggers are suspected agents in the initial etiology of autoimmune diseases. There are some studies on the etiology of autoimmune disorders which have focused on streptococcal infection and a possible relation with microbial heat shock proteins (hsp) which show significant homology with human heat shock proteins. In addition, some serotypes of streptococci cross-react ...

The objective of this study was to compare different antigen preparations to produce monoclonalantibodies against bovine leukaemia virus gp51SU. The four antigen preparations for immunization ofBALB/c mice were: CL: BLV-FLK cell lysate, UF: a fraction of CL (between 30 and 100 kDa), WVP: wholevirus particles and SP: with ion exchange chromatography, gp51SU was semipurified. A total of ninesucce...

bacterial and viral triggers are suspected agents in the initial etiology of autoimmune diseases. there are some studies on the etiology of autoimmune disorders which have focused on streptococcal infection and a possible relation with microbial heat shock proteins (hsp) which show significant homology with human heat shock proteins. in addition, some serotypes of streptococci cross-react with ...

objective: antigen 85 complex of mycobacterium tuberculosis includes three immunogenic proteins which are important tb vaccine candidates. the use of these protein as a component of subunit vaccines, as a part of dna vaccines or recombinant bcg boosters, enhances their recombinant production. recombinant production of these mycobacterial proteins located in the cell wall somehow differs from th...

background: light chain (lc) and heavy chain carboxyterminal subdomain (hcc) fragments are the most important parts of tetanus neurotoxin (tent) which play key roles in toxicity and binding of tent, respectively. in the present study, these two fragments were cloned and expressed in a prokaryotic system and their identity was confirmed using anti-tent specific polyclonal and monoclonal antibodi...