Browsing Molecular Biophysics Unit (MBU) by thesis submitted date"2013"
Now showing items 1-12 of 12
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Conformational Analysis of Designed and Natural Peptides : Studies of Aromatic/Aromatic and Aromatic/Proline Interactions by NMR
(2018-04-05)This thesis describes NMR studies which probe weak interactions between amino acid side chains in folded peptide structures. Aromatic/aromatic interactions between facing phenylalanine residues have been probed in antiparallel ... -
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 ... -
Elucidating the Role of MsRbpA in Rifampicin Tolerance and Transcription Regulation of Mycobacterium Smegmatis
(2018-04-12)RNA polymerase binding protein A (RbpA) was first discovered as a RNA polymerase binding protein from Streptomyces. coelicolor. It was shown to cause rifampicin tolerance to RNA polymerase in vitro and leads to basal level ... -
GABAA Receptor Mediated Phasic and Tonic Inhibition in Subicular Pyramidal Neurons
(2018-07-28)GABA is the major inhibitory neurotransmitter in the central nervous system. It binds to two types of receptors –ionotropic GABAA and metabotropic GABAB. The GABAA receptor directly gates a Clionophore that causes ... -
Mass Spectrometric Deconvolution of Libraries of Natural Peptide Toxins
(2018-03-24)This thesis deals with the analysis of natural peptide libraries using mass spectrometry. In the course of the study, both ribosomal and non-ribosomal classes of peptides have been investigated. Microheterogeneity, ... -
Protein Engineering of HIV-1 Env and Human CD4
(2018-05-01)Since, its discovery over three decades ago, HIV has wrecked havoc worldwide. According to the UNAIDS report 2011, at present 34 million people is living with HIV and AIDS vaccine with broadly neutralizing activity still ... -
Protein NMR Studies of E. Coli IlvN and the Protease-VPg Polyprotein from Sesbania Mosaic Virus
(2018-04-03)Acetohydroxyacid synthase is a multisubunit enzyme that catalyses the first committed step in the biosynthesis of the branched chain amino acids viz., valine, leucine and isoleucine. In order to understand the structural ... -
Structural and Functional Studies on Pyridoxal 5′-Phosphate Dependent Lyases and Aminotransferases
(2017-11-30)The thesis describes structural and functional studies of two PLP-dependent enzymes, diaminopropionate (DAP) ammonia lyase (DAPAL) and N-acetylornithine aminotransferase (AcOAT). The main objective of this work was to ... -
Structural Studies on Mycobacterial Aspartic Proteinases and Adenylyl Cyclases
(2018-04-11)Structural investigations on two mycobacterial enzymes were carried out. Tuberculosis still remains a major threat to mankind even though drugs against it have been in use for many decades. The emergence of drug resistant ... -
Structural Studies on Mycobacterium Tuberculosis Peptidyl-tRNA Hydrolase and Ribosome Recycling Factor, Two Proteins Involved in Translation
(2017-11-27)Protein synthesis is a process by which organisms manufacture their proteins that perform various cellular activities either alone or in combination with other similar or different molecules. In eubacteria, protein synthesis ... -
Structure, Stability and Evolution of Multi-Domain Proteins
(2018-04-11)Analyses of protein sequences from diverse genomes have revealed the ubiquitous nature of multi-domain proteins. They form up to 70% of proteomes of most eukaryotic organisms. Yet, our understanding of protein structure, ... -
Understanding the Regulatory Steps that Govern the Activation of Mycobacterium Tuberculosis σK
(2018-07-28)A distinctive feature of host-pathogen interactions in the case of Mycobacterium tuberculosis is the asymptomatic latent phase of infection. The ability of the bacillus to survive for extended periods of time in the host ...