Browsing Division of Biological Sciences by Advisor "Balaram, P"
Now showing items 1-20 of 24
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Antigenic Determinants Of Chicken Riboflavin Carrier Protein: Structural And Functional Aspects
(Indian Institute of Science, 2005-09-01)Investigations detailed in this thesis constitute a part of the continuing programme of research undertaken in our laboratory on the riboflavin carrier protein (RCP) with particular reference to identification and synthesis ... -
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 ... -
Conformational Analysis Of Designed Alpha-Omega Hybrid Peptides
(2011-10-21)The insertion of ω- amino acid residues as guests into host α-peptide sequences permits expansion of the range of polypeptide secondary structures. The term ω- amino acid is used to refer to the entire family of residues ... -
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 ... -
Cyclic peptide disulfides as conformational models; synthesis and spectroscopic studies
The study of small peptides has been motivated both by the high biological activity manifested by many peptides and their potential use as model systems for understanding polypeptide and protein structure. The development ... -
Designed Synthetic Peptides : Models For Studies Of Conformational Transitions And Aromatic Interactions
(2015-07-17)This thesis set out to explore the conformational properties of short designed peptide sequences, in which transitions between structural states may be anticipated. The use of conformationally constrained residues like ... -
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 ... -
Exploring The Role Of The Highly Conserved Residues In Triosephosphate Isomerase
(2014-08-11)This thesis discusses the structure-function studies on triosephosphate isomerase (TIM) from Plasmodium falciparum (Pf), directed towards understanding the roles of highly conserved residues by site derected mutagenesis. ... -
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, ... -
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, ... -
Motifs in proteins: Disulfide constraints and their applications to protein engineering and peptide modelling
By carrying out a detailed data analysis of 175 PP motifs in proteins, sequence–structure relationships were identified for linking loops 1–5 residues long. Conformational families were recognized in 1-, 2-, 3-, and 4-residue ... -
Precursor Conotoxin Sequences From Conus Achatinus And Conus Monile
(2009-06-01)The numerous toxic peptides, called conotoxins (Olivera et al 1990, 1991), that marine cone snails produce and use for capturing prey, deterring predators and presumably for other biotic interactions, are known to target ... -
Probing the Role of Highly Conserved Residues in Triosephosphate Isomerase : Biochemical & Structural Investigations
(2018-05-23)Conserved residues in protein are crucial for maintaining structure and function, either by direct involvement in chemistry or indirectly, by being essential for folding, stability and oligomerisation and are mostly clustered ... -
Spectroscopic studies on two biological amphiphiles: melittin and Birlirubin.
This thesis describes spectroscopic studies on two interesting biological amphiphiles, melittin and bilirubin. The former is a 26?residue polypeptide which comprises ~50% of the dry venom of honeybees. Melittin is cytotoxic ... -
Structural Characterization Of Protein Folding Intermediates
(2013-07-25) -
Structure- Function Studies on Triosephosphate Isomerase : Some Old Questions, Some New Insights
This thesis describes biophysical, kinetic, structural, and sequence conservation analysis of the glycolytic enzyme triosephosphate isomerase (TIM). TIM catalyses the diffusion limited isomerization of D-glyceraldehyde-3-phospahte ...