Browsing Microbiology and Cell Biology (MCB) by Title
Now showing items 1-20 of 251
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Altering DNA topology in mycobacteria: impact of perturbation of DNA gyrase on physiology and gene expression
In the current dissertation, efforts have been made to probe the in vivo role of DNA gyrase to determine its importance in the growth, physiology and gene expression in mycobacteria. In this dissertation, the role of DNA ... -
Alternate Fates of tRNAs in Initiation and Elongation
Protein synthesis in all organisms utilizes a special tRNA called the initiator tRNA. Initiator tRNAs take part in the initiation step of protein synthesis by their direct binding to the P‐site of the ribosome. The other ... -
Antimicrobial Peptides And Salmonella Pathogenesis
(2011-02-07)Chapter-I Introduction The bacteria known as Salmonellae are gram-negative, rod-shaped intracellular pathogenic bacilli that belong to the family Enterobacteriacea and causes typhoid fever. Enteric fever or typhoid ... -
Biochemical, Genetic and Molecular characterization of TCP3 and TCP4 transcription factors in Arabidopsis thaliana
The TEOSINTE BRANCHED1, CYCLOIDEA, PROLIFERATING CELL FACTORs (TCP) family of proteins consists of plant-specific, non-canonical basic helix-loop-helix transcription factors that perform diverse developmental processes. ... -
Bone Morphogenesis Protein (BMP) Signaling at the Cross-roads of Host-Pathogen Interactions : Implications for Pathogenesis
(2018-06-13)Study of cell signalling pathways affected by pathogen entry comprises a fundamental aspect of understanding host-pathogen interactions. In this respect, the current study attempted to ascribe novel roles to Bone Morphogenesis ... -
Breast Cancer Susceptibility Gene 1 (BRCA1) And Breast Cancer
(2009-04-15)Breast Cancer susceptibility gene 1 (BRCA1) & Breast Cancer Breast cancer is one of the most common malignancies affecting women worldwide. About 5-10% of all cases are estimated to be familial. Mutations in the BRCA1 ... -
Carbon Starvation Genes Mediate the Cross-talk Between Metabolism and Pathogenesis of Salmonella Typhimurium
Carbon starvation genes mediate the cross-talk between metabolism and pathogenesis of Salmonella Typhimurium Salmonella enterica serovar Typhimurium (S. Typhimurium) can infect a wide range of host animals to cause diseases ... -
Cell Survival Strategies : Role Of Gyrase Modulatory Proteins
(2010-07-21)A steady state level of negative supercoiling is essential for chromosome condensation, initiation of replication and subsequent elongation step. DNA gyrase, found in every eubacteria, serves the essential housekeeping ... -
Cellular and Molecular Features of the Response of Mycobacterium smegmatis to Rifampicin and Moxifloxacin Upon Prolonged Exposure
Bacterial persisters are a subpopulation of bacteria that can tolerate lethal concentrations of antibiotics. These are phenotypic variants that can give rise to drug‐susceptible population upon withdrawal of the antibiotic. ... -
Characterization of an In Vitro Transcription System for Peste Des Petits Ruminants Virus and Functional Characterization of RNA Triphosphatase Activity of RNA Dependent RNA Polymerase Protein L
(2018-03-03)Peste des petits ruminants virus (PPRV) belongs to the family paramyxoviridae which comprises non segmented negative sense RNA viruses including measles and rinderpest virus. PPRV is the causative agent of peste des petits ... -
Characterization of Host Protein Interactions with HCV RNA : Implications in Viral Translation, Replication and Design of Antivirals
(2018-05-09)HCV genome is a positive sense single-stranded RNA containing a single open reading frame (ORF) flanked by untranslated regions (UTRs), 5’UTR and 3’UTR.Initiation of HCV RNA translation is mediated by internal ribosome ... -
Characterization of the Cis and Trans Acting Factors that Influence p53 IRES Function
(2018-03-07)p53 is a nodal tumor suppressor protein that acts as a major defense against cancers. Approximately 50% of human tumours have mutations in p53 gene. Among its myriad features, the most distinctive is the ability to elicit ... -
Characterization of the transsulfuration enzyme Cystathionine beta-synthase as a novel regulatory node in the sulfur metabolism of Mycobacterium tuberculosis
Methionine and cysteine metabolisms are important for the survival and pathogenesis of Mycobacterium tuberculosis (Mtb). The transsulfuration pathway converts methionine to cysteine and represents an important link between ... -
Characterization of XRN2-mediated microRNA turnover mechanism and its pathophysiological significance in eukaryotes
MicroRNAs (miRNAs) are endogenous, small non-coding RNAs that are extensively involved in the posttranscriptional regulation of gene expression in eukaryotes. Comprehensive studies on miRNA expression and function have ... -
Deciphering canonical and non-canonical role of splicing factor Prp16 in pathogenic yeast C. neoformans
RNA splicing is a ubiquitous process during eukaryotic gene expression, where non-coding introns are removed from primary transcripts to form functional mRNA. This vital process is carried out by the spliceosome, a large ...