Browsing Molecular Biophysics Unit (MBU) by Title
Now showing items 264-283 of 393
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Structural and Functional Studies on Pyridoxal Kinase and Pyridoxal 5′-phosphate Dependent Enzymes
(2018-07-04)Most of the chemical reactions of living cells are catalyzed by protein enzymes. These enzymes are very efficient and display a high degree of specificity with respect to the reaction catalyzed. Cellular activities depend ... -
Structural and Functional Studies on Salmonella typhimurium Propionate Kinase and Photorhabdus luminescens Oxalate Decarboxylase
Acetate and propionate are low molecular mass carbon compounds found abundantly in the soil. Although these compounds have been extensively used as food preservatives because of their ability to inhibit microbial growth, ... -
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 Features of Protein Assemblies with Special Reference to Spliceosome
(2017-12-07)Macromolecular assemblies such as the ribosome, spliceosome, polymerases are imperative for cellular functions. The current understanding of these important machineries and many other assemblies at the molecular level is ... -
Structural and Mechanistic Studies of Gaba Transporter Isoform 1
The plasma membrane neurotransmitter transporter, GAT1, is responsible for the clearance of inhibitory neurotransmitter γ-aminobutyric acid (GABA) from the synaptic cleft. Targeting GABA reuptake by inhibiting GAT1, hence ... -
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 RNase J paralogs and associated multi-enzyme complexes in Staphylococcus aureus
The Staphylococcus aureus RNome, which includes both coding and non-coding RNAs, has a direct bearing on the virulence of this pathogen as it influences the ability to adapt to diverse environments within the host. Multiple ... -
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 Lectins
(2018-05-09)This thesis is concerned with the first ever X-ray crystallographic and complimentary solution studies on mycobacterial lectins. Lectins, described as multivalent carbohydrate binding proteins of non-immune origin, are ... -
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 Characterization of Biological Macromolecules by Random Conical Tilt Pair Experiments
Structural biology deals with determining the structure of biological macromolecules especially proteins, DNA, RNA. The conformational changes in the structure of a macromolecule helps to decipher its function. This ... -
Structural Characterization Of Protein Folding Intermediates
(2013-07-25) -
Structural characterization of Staphylococcal γ-hemolysin in the presence of a lipid environment using single particle cryo-EM
γ-Hemolysin (γ-HL) is a quintessential bicomponent β-pore forming toxin (β-PFT) belonging to the arsenal of “superbug” Staphylococcus aureus. Here, we performed negative staining-TEM and single particle cryo-EM-based ... -
Structural Feature of Prokaryotic Promoters and their Role in Gene Expression
(2018-05-14)Transcription initiation is an important step in the process of gene regulation in prokaryotes. Promoters are stretches of DNA sequence that are present in the upstream region of transcription start sites (TSSs), where RNA ... -
Structural insights into assembly and regulation of HigBA toxin-antitoxin system from Escherichia coli
In the last few decades, bacterial Toxin-antitoxin (TA) systems have been identified to play crucial roles in bacterial survival under stressful conditions and virulence. TA systems are pair of genetic elements where one ... -
Structural insights into the organization and channel behavior of Pannexin isoforms
Pannexins are large-pore ion channels structurally related to Connexins and Innexins but remain as hemichannels to release cellular ATP upon activation. Pannexins comprise three isoforms, Pannexin1, 2, and 3, with diverse ... -
Structural Insights of Inter-domain Interactions in Multi-domain Proteins
Embargo up to August 11, 2026. Proteins are essential biomolecules whose diverse functions stem from their modular architecture built from independently folding units called domains. This thesis investigates the nature and ... -
Structural Investigations Of Sugar-Binding And Multivalency In Peanut Lectin
(2009-03-04)Starting with the structure analysis of ConA in the 70s, the crystal structures of hundreds of different lectins and their carbohydrate complexes have been determined. Lectins, multivalent carbohydrate-binding proteins ...