Browsing Microbiology and Cell Biology (MCB) by Subject "Research Subject Categories::NATURAL SCIENCES::Biology::Cell and molecular biology"
Now showing items 1-20 of 60
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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 ... -
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 ... -
Characterizing the viral factors and host determinants that control Dengue virus infection and pathogenesis
Background – Dengue virus is a mosquito-borne flavivirus that is the causative agent for dengue fever, which progresses to dengue shock syndrome in many patients. It is estimated that around 390 million dengue infections ... -
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 ... -
Deciphering the mechanism behind the division of the Salmonella containing vacuole (SCV) and the immunomodulation strategy employed by Salmonella Typhimurium
The genus Salmonella represents flagellated, Gram-negative, rod-shaped anaerobic bacteria which is a leading cause of food-borne illness and causes enteric disease in a wide range of animals. In humans and several warm-blooded ... -
Deciphering the role of outer membrane porins in the pathogenesis of Salmonella enterica serovar Typhimurium
Porins are highly conserved barrel-shaped proteins bound to the bacterial outer membrane and involved in the selective transport of charged molecules across the membrane. They consist of parallel and anti-parallel β sheets ... -
Deciphering the role of spermidine in Salmonella Typhimurium pathogenesis
Salmonella enterica serovar Typhimurium (S. Typhimurium) is a Gram-negative, facultative anaerobic bacterium. It infects a broad range of hosts, causing symptoms such as gastroenteritis, abdominal pain, inflammatory diarrhoea ... -
Decoding Epigenetic Regulators in Cancer: Acetylation of HIF2A by Histone Acetyltransferase 1 (HAT1) is essential for executing hypoxia response in glioma
Gliomas are tumors of the central nervous system arising from glial cells. Based on the origin of the cell type, it can be astrocytoma, oligodendroglioma, and ependymoma. Astrocytoma is the most common type of glioma, ... -
Dissecting the function of NuMA in cleavage furrow formation and chromatin decondensation at the mitotic exit in animal cells
In animal cells, the duplicated genetic material is aligned on a microtubule-based structure known as the mitotic spindle during mitosis. At the mitotic exit, the mitotic spindle elongates, and the sister chromatids get ... -
Eco-evolutionary consequences of bacterial predation
Predator-prey interactions pervade all ecosystems at all levels of biological organization. Ample research using higher eukaryotes has demonstrated the role of predator-prey interactions on the evolution of ecological and ... -
Elucidating the role of SNARE Syntaxin 1A in regulating lysosome and melanosome function
SNAREs are transmembrane proteins that localize to specific membranes and facilitate the process of membrane/vesicle fusion. SNAREs mediate the fusion by binding with their respective cognate SNAREs. SNAREs mediate the ... -
Epigenetic modulation of Foam cell generation during Mycobacterium tuberculosis/ Cryptococcus neoformans infection
Foamy macrophages or Foam cells are a critical cellular component of the granuloma formed during pulmonary infection. These lipid rich cells generally contain neutral lipids, Cholesteryl Esters (CE) and/or Triglycerides ... -
Epigenetic repression of stemness genes by the TCP/KNOX-II transcription factors in simple leaf development of Arabidopsis
Leaves are initiated as primordia at the flanks of the shoot apical meristem. Primordia in the simple-leaved species such as Arabidopsis produce single lamina, whereas those in compound-leaved species such as tomato ... -
Exploring and Targeting Dysregulated GPCRs in Glioblastoma: A Comprehensive Investigation
G protein–coupled receptors (GPCRs) represent the largest family of membrane receptors and are key regulators of cellular signaling. While extensively targeted in various diseases, their potential in oncology especially ... -
Exploring the roles of nucleoid-associated protein HU and two of its interacting proteins in Mycobacterium tuberculosis pathogenesis
The genome in prokaryotes is restricted to a membrane-less compartment termed nucleoid. The genome is maintained in the compacted state within the nucleoid with the help of three key cellular factors viz, macromolecular ... -
Functional characterisation of splicing factor Slu7 in Cryptococcus neoformans – roles in cell cycle, constitutive and alternate splicing
Fungal genomes, including in pathogenic yeasts like Cryptococcus neoformans (Cnn) and Candida albicans are rich with short introns. 99% of Cryptococcus neoformans genes have introns with an average of 5 introns per gene ... -
Functional characterization of a new enzymatic activity of the ‘miRNase’-XRN-2 from Caenorhabditis elegans.
Ribonucleic acid (RNA) molecules play a central role in every pivotal process in the cell, and ribonucleases (RNases) are critical for their biogenesis, processing, and degradation. Therefore, RNases are indispensable for ... -
Genetics of Glioblastoma: Insights into Biology and Therapy Resistance
The central nervous system contains the neural stem cells which differentiate and give rise to the neurons as well as the glial cells which are non-neuronal in nature and provide support and protection to neurons. Unlike ... -
Heterogeneous host-pathogen interactions contribute to antibiotic tolerance in Mycobacterium tuberculosis
Eradication of Mycobacterium tuberculosis (Mtb) requires strategies targeting bacteria inside the host. Mtb exhibits heterogeneity in redox metabolism inside macrophages to evade killing by anti-TB drugs. If and how ...