Browsing Division of Biological Sciences by Title
Now showing items 234-253 of 1019
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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 ... -
Evolutionary Design Of Active Site Plasticity In R.KpnI For Promiscuity In Metal Ion Utilization And Substrate Recognition
(2013-03-27)Restriction modification (R-M) systems are important components of the prokaryotic arsenal against invading genomes. R-M systems directly target the foreign DNA and are often considered as primitive immune systems in ... -
Expanding The Horizon Of Mycobacterial Stress Response : Discovery Of A Second (P)PPGPP Synthetase In Mycobacterium Smegmatis
(2015-12-21)The stringent response is a highly conserved physiological response mounted by bacteria under stress (Ojha and Chatterji, 2001; Magnusson et al., 2005; Srivatsan and Wang, 2007; Potrykus and Cashel, 2008). Until recently, ... -
Exploration of the Recombination Repair Pathway in Mycobacteria : Identification and Characterization of New Proteins
Genomic integrity is a fundamental requisite for survival and proliferation of all organisms. The genetic material is continuously threatened by a multitude of extrinsic and intrinsic factors. Consequently, the presence ... -
Exploring Nature's Inventory: Investigating the Role of Amide to Thioamide Substitution on Protein Stability
The peptide backbone holds a protein together and plays a crucial role in guiding its three-dimentional structure. The tertiary structure of proteins regulates several biological processes. Therefore, peptide bond modification ... -
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. ... -
Exploring the Evolution of Cellobiose Utilization in Shigella Sonnei And the Conservation of ChbG Orthologs in Eukaryotes
(2017-10-11)The chb operon constitutes the genes essential for utilization of chitooligosaccharides in Escherichia coli and related species. The six genes of the operon code for a transcriptional regulator (ChbR) of the operon, a ... -
Exploring the Marine Algicolous Endophytic Fungi: A Promising Source of Novel Cancer Therapeutics
Cancer is the second leading cause of mortality globally, with over 6 million new cases diagnosed annually. Research on effective therapies is crucial due to the disease's complexity. Natural materials in chemotherapy have ... -
Exploring the role of low complexity protein sequence in regulating RNA granule dynamics and translation control
RNA granules are conserved membraneless mRNP complexes that play an important role in determining mRNA fate by affecting translation repression and mRNA decay. Processing bodies (P-bodies) harbor enzymes responsible for ... -
Exploring The Role Of Purinergic Signaling In T Cell Activation
(2013-07-17)Adenosine 5’ triphosphate (ATP) is a molecule central to life for its role as the cellular energy currency, and a purine nucleotide which serves as a building block of RNA. Thus, on the backdrop of an indispensible ... -
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. ... -
Exploring the Roles of Phase Variable HpyAII Restriction-modification System in the Human Pathogen Helicobacter pylori
Helicobacter pylori is a Gram-negative microaerophilic bacteria known to infect as much as 80% of some populations with an average morbidity range of around 50% of the world population. It has been recognized as a definitive ... -
Exploring the Unusual Properties and Non-canonical Roles of Promiscuous Restriction Endonuclease KpnI
Restriction modification (RM) systems are important components of bacterial immune system. Their primary function is to protect the bacteria from invading bacteriophages. Based on the subunit composition, enzyme properties ... -
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 ... -
Factors Regulating Cerebellar Granule Neuron Progenitor Proliferation
Cerebella granule neuron progenitors (CGNPs) give rise to a homogenous group of neurons called the cerebellar granule neurons in the developing cerebellum (a hindbrain structure classically associated with fine motor ... -
A Farewell to Arms : Dynamics of Interactions between the Unique Semi-myrmecophyte Humboldtia Brunonis (Fabaceae) and its Domatia-inhabitants in the Absence of Universal Protection Mutualism
(2017-12-10)Mutualistic interactions between species are balanced on a delicate scale of net benefits to both interacting partners. The dynamics of such interactions could change depending on the context in which these interactions ... -
Fatty Acid And Triacylglycerol Synthesis In Developing Seeds Of Groundnut (Arachis Hypogaea) And Pisa (Actinodaphne Hookeri)
(Indian Institute of Science, 2005-04-18)The term "lipid" covers an extremely diverse range of chemical or molecular species. Lipids, defined as molecules that are sparingly soluble in water but readily soluble in organic solvents, are broadly categorized into ... -
Fidelity Of Translation Initiation In E. coli : Roles Of The Transcription-recycling Factor RapA, 23S rRNA Modifications, And Evolutionary Origin Of Initiator tRNA
(2016-09-15)Translation initiation is a rate limiting step during protein biosynthesis. Initiation occurs by formation of an initiation complex comprising 30S subunit of ribosome, mRNA, initiator tRNA, and initiation factors. The ...