Browsing Division of Biological Sciences by Advisor "Gopal, B"
Now showing items 1-20 of 22
-
Biophysical Studies on Mycobacterium Tuberculosis σ Factor – Regulatory Protein Complexes
Adaptation to external environmental conditions is essential for the survival of a bacterial cell. Bacteria have thus evolved multiple mechanisms to sense environmental stimuli and to couple this information into an ... -
Characterization of a Staphylococcus aureus multi-enzyme complex involved in the phenotypic switch and host-pathogen interactions
RNA homeostasis is maintained by synchronizing RNA synthesis and RNA degradation. These processes are synchronized to growth conditions and environmental stimuli, thus enabling bacterial survival in diverse environmental ... -
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 ... -
Exploration of the Recombination Repair Pathway in Mycobacteria : Identification and Characterization of New Proteins
Genomic integrity is a fundamental requisite for survival and proliferation of all organisms. The genetic material is continuously threatened by a multitude of extrinsic and intrinsic factors. Consequently, the presence ... -
First thorough characterization of the structure, interactions and specificity of an archeal lectin with implication for TB infection
Decades long studies on plant lectins carried out in this laboratory have contributed substantially to glycobiology and helped in the initiation and development of macromolecular crystallography in India. Subsequently the ... -
Influence of the substrate specificity of Mycobacterium tuberculosis ClpX on the transcriptional profile
Cellular homeostasis in bacteria is maintained by diverse molecular machines. These include several one-component systems (OCS), two- component systems (TCS), chaperone proteins, proteases, proteolytic complexes and ... -
Molecular Characterization of Bacillus Subtilis Oxidoreductases involved in the Bacilysin Synthesis
(2018-05-11)The biosynthetic pathway for the production of the dipeptide antibiotic bacilysin has been the subject of intense research over the past three decades. These studies revealed the role of multiple enzymes in the biosynthesis ... -
Role of the unstructured N-terminal region and interacting proteins on the function of Mycobacterium tuberculosis σA
A distinctive feature of the bacterial RNA polymerase is the modular organization. The core of this enzyme, comprised of a dimer of the α subunit assembles with the β, β', and ω subunit. The core RNA polymerase enzyme ... -
Structural and biochemical studies on mycobacterial Uracil-DNA glycosylase (Ung) and MutT1, key proteins involved in maintaining the genomic integrity in Mycobacteria
Maintaining genomic integrity is indispensable for the survival and propagation of an organism. Failure to do so can cause mutations involving structural and functional aberrations, leading to severe diseases. The causative ... -
Structural And Biophysical Analysis Of The Regulatory Mechanism Of Mycobacterium Tuberculosis Sigma Factors
(2010-12-07)Mycobacterium tuberculosis has one ribosomal RNA operon. The survival of this bacillus thus depends on a transcription mechanism that can effectively couple gene expression to changes in the environment. σ factors are ... -
Structural and Biophysical studies to evaluate the influence of oligomerization on biomolecular function
Oligomeric proteins are more common than monomers. This aspect of molecular evolution substantially contributes to functional diversity and the acquisition of features such as cooperativity and regulatory mechanisms. Not ... -
Structural And Functional Analysis Of Proteins With The Double Stranded β-helix (Cupin) Domains
(2010-12-24)Proteins performing catalytic roles predominantly occur in a few protein folds. Functional diversity within a common structural scaffold has been attributed to conformational features that enable exploration of reaction ... -
Structural And Functional Studies On Staphylococcus Aureus Enzymes Involved In L-Lysine Biosynthesis
(2011-05-24)Proteins associated with metabolic pathways have received considerable attention in an effort to understand the molecular details of the complex reactions catalyzed in vivo. Enzymes belonging to these pathways have also ... -
Structural and Functional Studies on the Mycobacterium tuberculosis σ factor σJ
(2018-05-21)Regulation of transcription in prokaryotes is primarily governed at the transcription initiation step. This feature has been extensively characterized in model prokaryotes notably Escherichia coli and Bacillus subtilis. ... -
Structural And Mechanistic Studies On Receptor Protein Tyrosine Phosphatases From Drosophila Melanogaster
(2013-06-20)Protein Tyrosine Phosphatases (PTPs) initiate, modulate and terminate key cellular processes by dephosphorylating phosphotyrosine (pY) residues on signaling proteins. The coordinated action of PTPs with their cognate ... -
Structural and mechanistic studies on Staphylococcal RNA degrading enzymes and multienzyme complexes
RNA degrading enzymes and multi-enzyme complexes govern a variety of cellular processes. The role of these enzymes and multi-enzyme assemblies has been suggested to govern gene expression levels in bacteria with modulations ... -
Structural and Related Studies on Mycobacterial RecA and LexA
(2018-06-18)Genetic material of bacteria is subject to damage due to multitudinous factors, both extrinsic and intrinsic in origin. Mechanisms for the maintenance of genomic integrity are thus essential for a bacterium to survive. ... -
Structural and related studies on Mycobacterium tuberculosis pantothenate kinase
Pantothenate kinase (PanK) is a ubiquitous and essential enzyme that catalyses the first step in the universal Coenzyme A (CoA) biosynthetic pathway. In this step pantothenate is converted to phosphopantothentate, which ... -
Structural Studies on the Intracellular Steps that Govern the Staphylococcus aureus Quorum Sensing System.
Quorum sensing in bacteria has been extensively examined over the past two decades. These studies suggest that the molecular mechanism that governs quorum sensing incorporates niche-specific, environmentally sensitive ... -
Studies on the promoter specificity determinants and modulators of the prokaryotic transcription machinery
Bacteria adapt to a wide range of environmental conditions by synchronizing transcription with changes in the extracellular environment. This is achieved by the synchronized action of two-component systems, Extra Cytoplasmic ...