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Structural and Functional Studies on the Mycobacterium tuberculosis σ factor σJ
(2018-05-21)
Regulation of transcription in prokaryotes is primarily governed at the transcription initiation step. This feature has been extensively characterized in model prokaryotes notably Escherichia coli and Bacillus subtilis. ...
Modulation of Protein Stability and Function by Cysteine Mutations and Signal Peptides
(2018-06-23)
Chapter 1gives a general introduction to the CXXC motif found in natural proteins. It then reviews the studies where disulphides were engineered in various proteins. The various strategies developed to engineer metal binding ...
Structural Feature of Prokaryotic Promoters and their Role in Gene Expression
(2018-05-14)
Transcription initiation is an important step in the process of gene regulation in prokaryotes. Promoters are stretches of DNA sequence that are present in the upstream region of transcription start sites (TSSs), where RNA ...
Structural and Related Studies on Mycobacterial RecA and LexA
(2018-06-18)
Genetic material of bacteria is subject to damage due to multitudinous factors, both extrinsic and intrinsic in origin. Mechanisms for the maintenance of genomic integrity are thus essential for a bacterium to survive. ...
Understanding the Regulatory Steps that Govern the Activation of Mycobacterium Tuberculosis σK
(2018-07-28)
A distinctive feature of host-pathogen interactions in the case of Mycobacterium tuberculosis is the asymptomatic latent phase of infection. The ability of the bacillus to survive for extended periods of time in the host ...
Development of a Selective Cell-Permeable Protein Phosphatase 1 Inhibitor
(2018-07-10)
Selective ‘super-specific’ inhibitors of Protein Phosphatase 1 (PP1) are not available. Several natural product toxins possessing marginal selectivity between PP1 and the closely related Protein Serine/Threonine Phosphatase ...
Structural and Functional Analysis of Proteins involved in Microbial Stress Tolerance and Virulence
(2018-08-11)
The genus Salmonella consists of pathogenic gram negative organisms which infect intestines of birds, animals and humans. They are the causative agents of salmonellosis which is characterised by diarrhoea, nausea, fever ...
Computational Analyses of Protein Structure and Immunogen Design
(2018-08-20)
The sequence of a polypeptide chain determines its structure which in turns determines its function. A protein is stabilized by multiple forces; hydrophobic interaction, electrostatic interactions and hydrogen bond formation ...
Substrate Specificity Determinants of Class III Nucleotide Cyclases
(2018-07-31)
Cyclic AMP and cyclic GMP (cAMP and cGMP) are important second messengers in key signal-transduction pathways that mediate various physiological functions in bacteria and eukaryotes. Adenylyl Cyclases (ACs) and Guanylyl ...
The Role of DNA Structural Features of Eukaryotic Promoter Sequences in Transcription Regulation
(2018-09-04)
Understanding the molecular structure of DNA was considered as greatest achievement in modern biology. It helped in understanding fundamental cellular processes such as replication of DNA, nature of the ...