Evidence of bar minigene expression and tRNA2Ile sequestration as peptidyl-tRNA2Ile during lambda bacteriophage development.

lambda bar minigene-mediated inhibition of protein synthesis involves accumulation of peptidyl-tRNA and starvation for tRNA.

Expression of the bacteriophage lambda two-codon, AUG AUA, barI minigene (bar+) leads to the arrest of protein synthesis in cells defective in peptidyl-tRNA hydrolase (Pth). It has been hypothesized that translation of the bar+ transcript provokes premature release and accumulation of peptidyl-tRNA (p-tRNA). Inhibition of protein synthesis would then result from either starvation of sequestered...

Construction of the Recombinant Plasmid Expressing AID under the Control of Temperature-sensitive Promoter of Bacteriophage Lambda

Background and purpose: Activation-induced cytidine deaminase (AID) is a B-cell specific enzyme responsible for somatic hypermutation (SHM) and class switch recombination (CSR) of antibody genes within the B-cell follicle of peripheral lymphoid organs. Ectopic overexpression of the enzyme leads to mutations in non-B cells and Escherichia coli (E.coli) genes. However, induction of mutations in E...

استفاده از باکتریوفاژ لامبدا به‌عنوان حامل آپوپتین جهت رسانش موثر آن به درون تومور BT-474 سرطان سینه انسانی

Background: Apoptin is a protein from chicken anemia virus that could induce apoptosis specifically in the cancer cells but it has not any effect in the normal cells. Phage therapy is a novel field of cancer therapy and phage nanobioparticles (NBPs) such as λ phage could be modified to deliver and express genetic cassettes into eukaryotic cells safely in contrast with animal viruses. The bacter...

Bacteriol . Hernandez - Sanchez Manuel Galindo , Gabriel Guarneros and Javier Norma Angélica Oviedo de Anda , Luis Kameyama , José Development during Lambda BacteriophageIle 2 Sequestration as Peptidyl - tRNA Ile 2 tRNA

طراحی و ساخت نانو زیست ذرات فاژی نوترکیب به عنوان کاندیدای حامل واکسن ژنی- خوراکی

  Background and Objective : Bacteriophage vectors recently have been considered as a gene transfer and vaccine delivery vehicles chiefly due to their low cost, safety, and physical stability. Since, little is known about phage mediated gene transfer in mammalian hosts, A group of invitro experiments were performed to ascertain gene transfercapability of these vehicles .   Materials and Methods...