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Role of PdtaS-PdtaR two component signalling system in metabolic adaptation in Mycobacterium spp.
The ability to perceive and adapt to environmental fluctuations, both internal and external, is a fundamental characteristic of life across diverse organisms. Within the context of pathogenic bacteria such as Mycobacterium ...
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 ...
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 ...
Cyclic nucleotide-binding proteins in mycobacteria
Mycobacterium tuberculosis, one of the leading causes of death worldwide even today, employs the second messenger cAMP extensively for its pathogenicity and persistence. Intracellular and extracellular levels of cAMP in ...
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. ...
Unravelling Crosstalk in Two-component Signalling Systems and Its Role in Mycobacterium Species
A typical two-component signaling system (TCSs) is composed of two transcriptionally coupled proteins (cognate pair) where one is a signal-sensing histidine kinase (HK) and the other, an output-generating response regulator ...
Studies on the mechanisms of action and the physiological roles of MutT1 in mycobacteria
Mycobacterium tuberculosis (Mtb), a pathogenic bacterium, thrives and proliferates inside host macrophages, encountering a high level of reactive oxygen species and reactive nitrogen intermediates which is generated by 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 ...
Studies on Nudix hydrolase proteins and crosstalk between DNA repair pathways
Mycobacterium tuberculosis, the causative agent of tuberculosis, has become a global health concern. This calls for a dire need to understand various aspects of mycobacterial physiology in order to design better strategies ...
Structural and functional insights of biological macromolecules associated with infectious diseases – single particle cryo-electron microscopy based studies
In the global context, particularly in India, the two most important infectious diseases among many others are Tuberculosis (TB), an age-old disease and COVID-19, a new-age disease. This thesis focuses on some of the key ...