Browsing Division of Biological Sciences by Title
Now showing items 155-174 of 1425
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conformational studies on hydrogen bonded cyclic hexapeptides
In the first place, the uniqueness of any MEC within a certain region demonstrates the successful incorporation of the hydrogen?bond energy function in a minimization program. In particular, its interpolation with the ... -
Conformational studies on peptides containing alpha aminoisobutyric acid and polypeptides with alternating LD-Sequences
The results of semiempirical energy calculations on poly(Aib), varying ACO and ?(NC?C) separately and simultaneously, suggest a novel fourfold helical structure as an energetically favourable model for poly(Aib). This novel ... -
Conformational studies on polynuc leotides and nucleic acids
After an introduction to the nucleic acids and the conformational studies on them at the monomeric and polymeric levels, the need for investigations on the conformations of 3?-nucleotides is outlined. The significance of ... -
Conformationalflexibility of DNA: Polymorphism and handness
Observation of both right- and left-helical DNA fragments in the single crystals and different poly morphous forms of DNA in fibres suggest that the con formational flexibility is inherent in the DNA mole cule. However, ... -
Conservation and divergence of the nucleotide excision repair pathway: Comparison of UvrB and UvrC proteins from Mycobacterium tuberculosis and Escherichia coli reveal significant differences in their functional properties
This thesis is presented in three chapters divided by topics. Chapter I will begin with an overview of literature regarding different types of DNA damage, DNA repair pathways in bacteria, properties of E. coli UvrABC ... -
Conservation strategy for the birds of the uttara kannada district.
The forests of Uttara Kannada have had a long history of disturbance and transformation by humans. As they stand today, woody plant species numbers tend to fall with the declining rainfall gradient in a northeastern ... -
Context Dependent Effects of the Transforming Growth Factor-beta Signaling and Role Played by WNT4 in the Activation of Fibroblasts
(2018-07-26)Transforming growth factor-β (TGF-β) superfamily of cytokines comprises of several members, which can broadly be sub-divided into three classes [TGF-βs, Activin/Nodal, and Bone morphogenetic proteins (BMPs)]. Most members ... -
Control and Co-ordination in Multi-Joint Movements
Our interactions with the world often entail a wide range of multi-jointed movements. We are bestowed with an abundant degree of freedom, that a movement can be achieved by recruiting multiple joints, muscles, and neural ... -
Crystal Structure Of Jacalin At 3.0A Resolution
(2012-11-15) -
Crystal structure of low humidity monoclinic lysozyme at 1.75 Resolution
It has been demonstrated earlier in this laboratory that many protein crystals, but not all, undergo reversible structural transformations, as evidenced by abrupt changes in unit cell dimensions, diffraction pattern, and ... -
Crystallization and Preliminary Structural Studies on Mycobacterium tuberculosis RuvX
The deadly pathogen Mycobacterium tuberculosis has been characterized for its virulence in immense detail. Regardless of this, the capability of M. tuberculosis to combat extreme stress conditions inside the host cell for ... -
Crystallographic and analytical ultracentrifugation studies of the E. coli acetohydroxy acid synthase I enzyme
This thesis ellucidates the mechanism of activation and regulation of AHAS I enzyme from Escherichia coli that was characterised using crystallographic and sedimentation velocity analytical ultracentrifugation studies. AHAS ... -
Crystallographic and modelling studies on a mannose-specific lectin from garlic bulbs
Lectins are multivalent carbohydrate-binding proteins which exert their biological effects through their ability to specifically bind different sugars. They occur in plants, animals, bacteria, and viruses. They exhibit ... -
Cyclic AMP In Mycobacteria Adenylyl Cyclases And Cyclic AMP Receptor Proteins
(2013-01-28)The discovery of cyclic AMP (cAMP), nearly 50 years ago by Sutherland radically altered the appreciation of metabolic regulation. Since then the presence of cAMP and its tremendous physiological impact has been demonstrated ... -
Cyclic AMP-Regulated Protein Lysine Acetylation In Mycobacteria
(2015-07-17)Tuberculosis continues to be one of the major causes of morbidity and mortality worldwide. Several mycobacterial species such as M. tuberculosis and M. africanum are responsible for causing this disease in humans. Reports ... -
Cyclic nucleotide-binding proteins in mycobacteria
Mycobacterium tuberculosis, one of the leading causes of death worldwide even today, employs the second messenger cAMP extensively for its pathogenicity and persistence. Intracellular and extracellular levels of cAMP in ... -
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 ... -
Cytosolic Lysophosphatidic Acid Acyltransferase : Implications in Lipid Biosynthesis in Yeast, Plants and Human
(2018-02-11)Cytosolic LPA acyltransferase in yeast An isooctane tolerant strain of S. cerevisiae KK-12 was reported to have increased saturated fatty acid content (Miura et. al., 2000). Amongst the various genes upregulated on isooctane ...