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CcdB : Stability, folding and application to design novel antibacterials
The primary amino acid sequence typically dictates the ultimate conformation of the protein. Mutations in the sequence demonstrate neutral, positive or negative effects on the structure-function relationship of the protein. ...
Solution structures and conformational isomerism of novel conopeptides from Indian marine cone snails
This thesis describes the structure determination of peptides found in marine cone snails’
venom at atomic resolution and their biological activity. Chapter 1 gives a brief introduction
to the cone snails, conopeptides, ...
Roles of the ribosomal protein uS12 and the initiation factor 3 in the maintenance of fidelity of translation in Escherichia coli
The flow of genetic information within biological systems according to the central dogma of molecular biology entails protein synthesis as the last step towards deciphering the message encrypted in the genetic code in ...
Translational readthrough of AGO1 mRNA and its regulation by let-7a microRNA
During translation, the message encoded in mRNAs is decoded by ribosomes to synthesize proteins following strict canonical decoding rules. This process is tightly regulated and several mechanisms exist in cells that ensure ...
Understanding the role of arginine clusters in β-hairpin antimicrobial peptides
The work described in this thesis describes the role of arginine clusters and the
importance of their position in B-hairpin antimicrobial peptides. Here, we have
tried to explore the role of guanidinium groups in the ...
Role of Escherichia coli UvrD helicase in resolving G-quadruplex DNA structures
G-quadruplex (G4) secondary structures have been implicated in various biological processes,
including gene expression, DNA replication and telomere maintenance. However,
unresolved G4 structures impede replication ...
Structural and Functional Investigation of a Multi-drug Efflux Transporter QacA
The emergence of multi-drug resistance in bacteria is a global health care challenge. One of the effective means of gaining antimicrobial resistance, among superbugs, is through expression of efflux pumps. Quaternary ...
Kinetic, Catalytic and Epigenetic Properties of HpyAXVII DNA Methyltransferase – a Phasevarion in the Human Pathogen Helicobacter pylori
Helicobacter pylori is the leading cause of gastric cancer in human beings. It is a helix-shaped, Gram-negative, motile bacteria that colonizes the gastric mucosa and eventually the gastric epithelium. It has an overabundance ...
Ecology of predator-prey interactions in the context of mate searching
Animals communicating in the context of mate searching benefit by increasing their
likelihood of encountering mates. Mate searching begins the important process of
individuals of opposite sexes forming pairs, which is ...
Suppression of epileptiform activity by lactate through HCA1 and GIRK channel activation in rat subicular pyramidal neurons
In the present study, we report a lactate-induced hyperpolarization and reduction of epileptiform activity in subicular weak burst firing and regular firing neurons using patch clamp electrophysiology. We showed the ...