Molecular Biophysics Unit (MBU): Recent submissions
Now showing items 281-300 of 302
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Mass Spectrometric Sequencing Of Acyclic And Cyclic Peptides
(2009-05-18)Elucidation of the primary structure of peptides and proteins de novo by mass spectrometry (MS) has become possible with the advent of tandem MS methods. The most widely used chemical method due to Edman (Edman & Begg, ... -
Design And Isolation Of Temperature Sensitive Mutants Of Gal4 In Yeast And Drosophila
(2009-04-16)Genomic and proteomic investigations have yielded, and continue to produce, a large amount of information about genes and their protein products. In contrast, the evidence bearing on physiological roles of specific proteins ... -
Aromatic Interactions In Peptides : Designed Helices And β-Hairpins
(2009-04-15)Design of complex protein folds requires complete understanding of the stereochemical principles that govern polypeptide chain folding. Extensive studies on design and synthesis of specific secondary structures like ... -
Intracellular Calcium Dynamics In Dendrites Of Hippocampal Neurons Rendered Epileptic And In Processes Of Astrocytes Following Glutamate Pretreatment
(2009-04-03)The fundamental attribute of neurons is their cellular electrical excitability, which is based on the expression of a plethora of ligand- and voltage-gated membrane channels that give rise to prominent membrane currents ... -
Thermodynamic Characterization Of Wild Type And Mutants Of The E.coli Periplasmic Binding Proteins LBP, LIVBP, MBP And RBP
(2009-03-13)Native states of globular proteins typically show stabilization in the range of 5 to 15 kcal/mol with respect to their unfolded states. There has been a considerable progress in the area of protein stability and folding ... -
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 ... -
Folding Studies On Peanut Agglutinin : A Lectin With An Unusual Quaternary Structure
(2009-03-04)The thesis entitled “Folding studies on Peanut Agglutinin: A lectin with an unusual quaternary structure” deals with the several aspects of the folding of the tetrameric legume lectin Peanut Agglutinin ... -
Structural Studies On The Enzymes FabI And FabZ Of Plasmodium Falciparum
(2008-10-20)The thesis deals with X-ray crystallographic analysis of two enzymes involved in the fatty acid biosynthesis pathway, known as Fatty Acid Synthase or FAS, of the malarial parasite, Plasmodium falciparum, in order to ... -
Components Of Fatty Acid Synthesis In Plasmodium Falciparum
(2008-10-17)The disease malaria afflicts more than a billion people and kills almost one to three million of them every year. Of the four species of Plasmodium affecting man viz., P. falciparum, P. vivax, P. ovale and P. malariae, ... -
Biochemical And Molecular Insights Into β-Hydroxyacyl-Acyl Carrier Protein Dehydratase (FabZ) From Plasmodium Falciparum
(2008-10-14)Malaria, caused by Plasmodium, is one of the most devastating infectious diseases of the world in terms of mortality as well as morbidity (WHO, 2002). The development of resistance in the Plasmodium falciparum against the ... -
Stringent Response In Mycobacteria: Molecular Dissection Of Rel
(2007-11-29)Adaptation to any undesirable change in the environment dictates the survivability of many microorganisms. Such changes generate a quick and suitable response, which guides the physiology of bacteria. Stringent response ... -
Structural Studies On Enzymes From Salmonella Typhimurium Involved In Propionate Metabolism: Biodegradative Threonine Deaminase, Propionate Kinase And 2-Methylisocitrate Lyase
(2007-11-23)I formally joined Prof. M. R. N. Murthy’s laboratory at the Molecular Biophysics Unit, Indian institute of Science, on 1st August 2001. During that time, the interest in the laboratory was mainly focused on structural ... -
Mechanism Of Anticancer And Antimalarial Action Of A Modulator Of Heat Shock Proteins
(2007-11-16)This thesis entitled “Mechanism of Anticancer and Antimalarial Action of a Modulator of Heat Shock Proteins” describes the successful elucidation of the mechanism of anticancer and antimalarial action of 15-Deoxyspergualin ... -
Designed β-Hairpin, β-Sheet And Mixed α-β Structures In Synthetic Peptides
(Indian Institute of Science, 2007-03-16)Synthetic construction of protein molecules has been widely pursued over the last two decades. A primary goal behind de novo protein design has been to build minimal systems by capturing the essential features of protein ... -
Structure Function Studies Of Biologically Important Simple Repetitive DNA Sequences
(Indian Institute of Science, 2007-03-09)The recent explosion of DNA sequence information has provided compelling evidence for the following facts. (1) Simple repetitive sequences-microsatellites and minisatellites occur commonly in the human genome and (2) these ... -
Structural Studies On Winged Bean Agglutinins
(Indian Institute of Science, 2007-01-11)Lectins are multivalent carbohydrate binding proteins that specifically recognise diverse sugar structures and mediate a variety of biological processes, such as cell-cell and host-pathogen interactions, serum glycoprotein ... -
Garlic (Allium Sativum) Agglutinin I: Specificity, Binding And Folding Mechanism
(Indian Institute of Science, 2006-11-08)Lectins are a class of proteins that bind to carbohydrates with a high degree of specificity. They are involved in various cellular processes such as, host - pathogen interactions, targeting of proteins within cells, cell ... -
Interaction Of Chaperone SecB With Protein Substrates: A Biophysical Study
(Indian Institute of Science, 2006-10-17)In the cell, as in in vitro, the final conformation of a protein is determined by it's amino acid sequence (1). Some isolated proteins can be denatured and refolded in vitro in absence of extrinsic factors. However, in ... -
Endotoxin Peptide/Protein Interactions: Thermodynamic And Kinetic Analysis
(Indian Institute of Science, 2006-05-15)Endotoxin or Lipopolysaccharide (LPS) is the invariant structural component of gram negative bacterial outer membranes and is the chief causative factor of Sepsis or endotoxic shock. Sepsis is a syndrome that has very high ... -
Non-repetitive Structures In Proteins : Effects Of Side-chain And Solvent Interactions With The Backbone
(Indian Institute of Science, 2006-05-12)The work presented in this thesis deals with the analysis of protein crystal structures with an emphasis on the stereochemical aspects of the folded conformation of proteins. The various analyses described have been performed ...