Browsing Division of Biological Sciences by thesis submitted date"2007"
Now showing items 1-20 of 38
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Analysis Of Protein Evolution And Its Implications In Remote Homology Detection And Function Recognition
(2009-07-22)One of the major outcomes of a genome sequencing project is the availability of amino acid sequences of all the proteins encoded in the genome of the organism concerned. However, most commonly, for a substantial proportion ... -
Biochemical Characterization Of Saccharomyces cerevisiae Mre11/Rad50/Xrs2 Using Telomeric DNA : A Role For The Endonucleolytic Activity Of Mre11 In Telomere Length Maintenance And Its Regulation By Rad50
(2009-05-15)Meiotic recombination is a prerequisite for exchange of genetic information in all Sexually reproducing organisms. This process is initiated by the formation of double stranded breaks (DSBs) in DNA followed by homology ... -
The Biology Of Two Sexes : A Study Of The Primitively Eusocial Wasp Ropalidia Marginata
(2009-05-21)A striking feature of hymenopterans societies is the absence of male workers. Foraging, nest building, brood care and all other activities required for the functioning of the colony are carried out by the females. These ... -
Call Diversity, Spatio-Temporal Patterning And Masking Interference In An Assemblage Of Acoustically Communicating Ensiferan Species Of A Tropical Evergreen Forest In Southern India
(2011-02-21)The present study provides the first description of the calls of a multi-species ensiferan assemblage in a tropical evergreen forest of the Indian subcontinent. I have identified and described the calls of twenty ensiferan ... -
Cell Surface Of Mycobacterium Smegmatis At The Stationary Phase : Regulation Of Gene Expression
(2009-05-21)Tuberculosis remains one of the oldest diseases known to mankind but still persists as a very major risk. Discovery of several antimycobacterials was marked by a steady decline in the active cases of pulmonary tuberculosis. ... -
Computational And Biochemical Studies On The Enzymes Of Type II Fatty Acid Biosynthesis Pathway : Towards Antimalarial And Antibacterial Drug Discovery
(2009-08-13)Malaria, caused by the parasite Plasmodium, continues to exact high global morbidity and mortality rate next only to tuberculosis. It causes 300-500 million clinical infections out of which more than a million people succumb ... -
Estradiol Induced Changes In Neuronal Excitability And Neuron-Astrocyte Signaling In Mixed Hippocampal Cultures
(2010-03-02)One of the defining characteristics of the brain is its plasticity, which is the ability to alter and reorganize neuronal circuits. The brain is constantly being shaped and moulded by the external world through endogenous ... -
Evolution Of New Metabolic Functions By Mutations In Pre-Existing Genes : The chb Operon Of Escherichia Coli As A Paradigm
(2009-07-02)Escherichia coli has the ability to respond to stress such as starvation in a very efficient manner. Under conditions of starvation wherein a novel substrate is provided as a sole nutritional source, Spontaneous mutants ... -
Exploring Protein-Nucleic Acid Interactions Using Graph And Network Approaches
(2009-09-22)The flow of genetic information from genes to proteins is mediated through proteins which interact with the nucleic acids at several stages to successfully transmit the information from the nucleus to the cell cytoplasm. ... -
Expression Profiling Of Genes Regulated By TGF-β : Role Of Multiple Signaling Pathways
(2009-05-12)Transforming growth factor-β (TGF-β) is the proto-type member of a super family of secreted proteins comprised of several structurally related, but functionally divergent proteins like the BMP, activin, inhibin, mullerian ... -
Gene Expression Profiling And Insights Into The Involvement Of The Insulin Signaling Pathway In Oral Cancer
(2008-08-27)1. Despite extensive research on oral squamous cell carcinoma (OSCC), its five-year survival rate has not improved for the last two decades. Effective treatment of OSCC requires the identification of molecular targets to ... -
Insights Into Oxidative Folding Of Retinol Binding Protein In The Endoplasmic Reticulum : A Study In Isolated Microsomes
(2009-04-30)The central role played by the Endoplasmic Reticulum (ER) in the correct folding and assembly of secretary and membrane proteins cannot be overstated. As the first compartment in the secretary pathway, it is responsible ... -
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, ... -
Mechanism Of Interaction Of Escherichia Coli σ70 With Anti-Sigma Factors
(2009-08-03)In bacteria, the RNA polymerase (RNAP) consists of the following subunits: α2, β, β’, ω and σ. The core RNAP (α2ββ’ω) possesses the polymerising activity and it associates with one of the sigma factors to initiate transcription ... -
Mechanism of Recycling of Ribosomes Stalled on mRNAs in Escherichia Coli
(2018-07-28)Studies reported in this thesis address the question of how pre-termination ribosomal complexes stalled during translation of mRNA are recycled. The process of recycling of the stalled ribosomes involves many translational ... -
Metabolism Of Queuosine, A Modified Nucleoside, In Escherichia Coli And Caenorhabditis Elegans And Dual Function Of Bovine Mitochondrial Initiation Factor 2 As Initiation Factors 1 And 2 In Escherichia Coli
(2009-06-29)The studies reported in this thesis address firstly, the biology of a modified nucleoside, Queuosine (Q) and secondly, the properties of mitochondrial translation initiation factor 2. A summary of the relevant literature ... -
Molecular Approaches To understand Cellular Differentiation - A Study Using BeWo Choriocarcinoma Cells
(2010-05-24)Cellular differentiation is a complex but fascinating process in all multicellular organisms. Differentiation can involve changes in numerous aspects of cell physiology; size, shape, polarity, metabolic activity, responsiveness ... -
Molecular Characterization Of The SLC22A18AS Gene From The Imprinted Human Chromosome Segment 11p15.5
(2011-02-21)The imprinting status of the SLC22A18AS gene, located in the human chromosome segment 11p15.5, was studied using PCR-SSCP analysis and fetal tissues from a battery of 17 abortuses. This gene showed monoallelic expression ... -
Peptidase N, A Major Aminopeptidase Belonging To The M1 Family : Biochemical And Functional Implications
(2009-08-05)Intracellular protein degradation is required for maintaining the cellular proteome and regulating cellular processes. This pathway involves proximal ATP-dependent proteases that unfold and translocate proteins targeted ... -
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 ...