Browsing Division of Biological Sciences by Title
Now showing items 103-122 of 1019
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Conformational Heterogeneity, Solution Structure and Autoregulatory Roles of the MazE9 Antitoxin from Mycobacterium tuberculosis
The work presented in this thesis endeavors to decode the details of the dynamics of MazE9 antitoxin of the Mycobacterium tuberculosis MazEF9 toxin-antitoxin system and the transcriptional autoregulation effected by it. ... -
Conservation and divergence of the nucleotide excision repair pathway: Comparison of UvrB and UvrC proteins from Mycobacterium tuberculosis and Escherichia coli reveal significant differences in their functional properties
This thesis is presented in three chapters divided by topics. Chapter I will begin with an overview of literature regarding different types of DNA damage, DNA repair pathways in bacteria, properties of E. coli UvrABC ... -
Context Dependent Effects of the Transforming Growth Factor-beta Signaling and Role Played by WNT4 in the Activation of Fibroblasts
(2018-07-26)Transforming growth factor-β (TGF-β) superfamily of cytokines comprises of several members, which can broadly be sub-divided into three classes [TGF-βs, Activin/Nodal, and Bone morphogenetic proteins (BMPs)]. Most members ... -
Crystal Structure Of Jacalin At 3.0A Resolution
(2012-11-15) -
Crystallization and Preliminary Structural Studies on Mycobacterium tuberculosis RuvX
The deadly pathogen Mycobacterium tuberculosis has been characterized for its virulence in immense detail. Regardless of this, the capability of M. tuberculosis to combat extreme stress conditions inside the host cell for ... -
Crystallographic and analytical ultracentrifugation studies of the E. coli acetohydroxy acid synthase I enzyme
This thesis ellucidates the mechanism of activation and regulation of AHAS I enzyme from Escherichia coli that was characterised using crystallographic and sedimentation velocity analytical ultracentrifugation studies. AHAS ... -
Cyclic AMP In Mycobacteria Adenylyl Cyclases And Cyclic AMP Receptor Proteins
(2013-01-28)The discovery of cyclic AMP (cAMP), nearly 50 years ago by Sutherland radically altered the appreciation of metabolic regulation. Since then the presence of cAMP and its tremendous physiological impact has been demonstrated ... -
Cyclic AMP-Regulated Protein Lysine Acetylation In Mycobacteria
(2015-07-17)Tuberculosis continues to be one of the major causes of morbidity and mortality worldwide. Several mycobacterial species such as M. tuberculosis and M. africanum are responsible for causing this disease in humans. Reports ... -
Cytosolic Lysophosphatidic Acid Acyltransferase : Implications in Lipid Biosynthesis in Yeast, Plants and Human
(2018-02-11)Cytosolic LPA acyltransferase in yeast An isooctane tolerant strain of S. cerevisiae KK-12 was reported to have increased saturated fatty acid content (Miura et. al., 2000). Amongst the various genes upregulated on isooctane ... -
Cytotoxic T lymphocyte Responses Against Japanese Encephalitis Virus In Mice: Specificity And Immunotherapeutic Value
(Indian Institute of Science, 2005-10-07)Cytotoxic T Lymphocytes (CTL) are known to play an important role in clearing infectious virus from infected hosts in a variety of viral infections. Depending on the type of virus and mode of virus entry both class I and ... -
Deciphering Functions & Interactions of Fission Yeast Splicing Factor SpSlu7 Relevant to Constitutive & Alternative Splicing
The fission yeast genome with abundant multi-intronic transcripts, degenerate splice signals and presence of alternative splicing machinery is an attractive unicellular fungal model to investigate splice-site recognition ... -
Deciphering Structure-Function Relationships in a Two-Subunit-Type GMP Synthetase by Solution NMR Spectroscopy
(2018-04-24)The guanosine monophosphate synthetase (GMPS) is a class I glutamine amidotransferase, involved in the de-novo purine nucleotide biosynthesis. The enzyme catalyzes the biochemical transformation of xantosine (XMP) into ... -
Deciphering the biochemical and biophysical properties of the Holliday junction resolvases RuvC and RuvX from Mycobacterium smegmatis
Homologous recombination (HR) is a ubiquitous cellular process that occurs in all three domains of life as well as in DNA and RNA viruses. In eukaryotes, HR is critically important for homology-directed DNA repair (HDDR) ... -
Deciphering the evolutionary significance of maintaining cryptic genetic systems by bacteria
Cryptic genes are phenotypically silent DNA sequences with the potential to code for a function, but remain inactive during the normal life span of the organism. However they can be activated by a single mutational event ... -
Deciphering the genetic regulators of cuticle barrier function and longevity in Caenorhabditis elegans
Ever since Sydney Brenner introduced Caenorhabditis elegans in the early 60s as a model system, this worm has contributed to many ground-breaking discoveries in science. It has served as an excellent model to study animal ... -
Deciphering the mechanisms employed by Salmonella to mediate modulation of host endo-lysosomal machinery
Salmonella genus encompasses Gram-negative, rod-shaped, facultative anaerobic, non-sporulating, and predominantly motile enteric bacteria. It causes pathogenesis in a wide array of hosts, from cold-blooded animals to humans ... -
Deciphering the Mechanisms of AMPK Activation upon Anchorage- Deprivation
(2018-01-07)AMP-activated protein kinase (AMPK) is a key regulator of energy homeostasis in cells. It has been implicated as a therapeutic target for various metabolic diseases like type II diabetes and obesity. However, its role in ... -
Deciphering the role of host protein HuR in RNA virus life cycle and pathogenesis: Hepatitis C Virus and SARS-CoV-2 as exemplars.
Viruses pose a major threat to human health and the ongoing SARS-CoV-2 pandemic proves as the best evidence for that. Historically, RNA viruses have a major potential to cause such pandemics. They utilise RNA binding ... -
Deciphering the Role of METTL3-Dependent m6A-epitranscriptome in Glioma Stem-like Cells
The major roadblocks in treatment for GBM are resistance to therapy and recurrence of GBM cells. Regardless of various treatment strategies, the average survival of GBM patients is poor and incidence of recurrence remains ...