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Friday 29 July 2011

READERS/FOLLOWERS- ATTENTION PLEASE

Dear Readers/Followers,

I would like to bring to your kind notice that programs hosted in this blog are  distributed under creative commons rights, which means no restriction in distribution, usage and exhibition with proper citation and acknowledgment. All the programs hosted here are developed by me. But, it is very disheartening that one of the readers/followers is removing all the cross-links which has been primarily used for uploading software and manuals. As a contributor in Science, no matter how little is it? please make room for others to reside and develop knowledge and don't be an obstacle for me and for others who are in real thrust for knowledge and developing something very important. I really apologize to those kind heart peoples who are always appreciating and praising my work for making such comments general which is very much important.

Thank you,

Tuesday 26 July 2011

“One has to go through all the experiences in Life because it makes you understand your own frailties and also helps you develop respect for God.”
N.R. Narayana Murthy

Monday 25 July 2011

Virtual Epitope Excision: Strategies Developed from Mass Spectrometry Proteolytic Footprinting.

We will be bringing you shortly Virtual Epitope Excision: Strategies Developed from Mass Spectrometry Proteolytic Footprinting. An online server which will guide the choice of proteinases and the free fragments generation to scrutinize the entire mass spectrometry analysis. Another role of this server is to make you decide the prediction accuracy of other epitope prediction programs.

Friday 22 July 2011

Combating Cancer through Epigenetic Modulation by Virtual Screening of Natural Bioactives


Ravi Kapopara*1, S. Prasanth Kumar2, Saumya K. Patel1, Dhananjay K. Sadhu1,  
Yogesh T. Jasrai1, Himanshu A. Pandya1 and Rakesh M. Rawal3
1Bioinformatics Laboratory, Department of Botany, Gujarat University, Gujarat, India.
2Department of Bioinformatics, Alagappa University, Tamil Nadu, India
3Division of Medicinal Chemistry and Pharmacogenomics, Department of Cancer Biology,
The Gujarat Cancer and Research Institute (GCRI), Gujarat, India.

Abstract
Epigenetic events are due to altered gene expression without any changes in the genetic material and characteristic of heritability via cell division. The impact of epigenetic control over cancer is one among the thrust area of research in cancer biology. The present study deals about the virtual screening of plant derived natural bioactives directed against the key molecular regulators of the epigenetic events viz. DNA methyltransferases (DNMT1, DNMT2 and DNMT3B), Histone acetyltransferase (HAT), Histone deacetylase 8 (HDAC8), Histone H3 lysine 27 methyl transferase (H3K27MT) and Histone H3 specific lysine 4 demethylase (H3K4DM). This computational screening identified the most efficient binders with respect to individual targets in terms of ligand binding energy. We hope that structure optimization of the best scored docked conformations will reveal new insights and development of natural bioactives to combat cancer.  

Keywords: Epigenetics, Virtual screening, Natural bioactives, Ligand binding energy



Computational Analysis of Naturally Occurring Marine Compounds (NOMC) Targeting Gap Junctions and Cell Adhesive Molecules for the Identification of Anticancer Drug Targets


S.K. Patel*, S. Prasanth Kumar1, Y.T. Jasrai1,H.A. Pandya1, and R.M. Rawal2
1Department of Botany, University School of Sciences,
Gujarat University, Ahmedabad-382415, Gujarat, India
2Division of Medicinal Chemistry & Pharmacogenomics,
Department of Cancer Biology, The Gujarat Cancer & Research Institute,
Asarwa, Ahmedabad-380 016, India.

The Journal of Computational Intelligence in Bioinformatics 2011: 4(2), pp. 161-171


Abstract
Compounds and metabolites from marine organisms established a new arena
for marine pharmacy primarily due to their diverse biological activities. In the
long run of anticancer drug development pipeline, some of the naturally
occurring marine compounds (NOMCs) appear to be potential candidates and
few are commercialized. In the present study, investigation of NOMCs from
Marine Algae, Sponges, Corals, Bacteria, Cnardians, and Marine Fish was
carried out targeted against Gap junctions (Connexin 26, Connexin 43) and
Cell Adhesive molecules (Cadherins, Integrins) via molecular docking studies.
The in silico effectiveness of NOMCs was studied based upon the interaction
with the protein’s active site residues with less binding energy. The interacting
NOMCs were further filtered to predict the bioavailability and drug likeness
properties. Manoalide from Marine Sponges was shown to be a better
interacting ligand with low binding energy (-121.693 kcal/mol) and passed all
the physicochemical parameters for drug likeness. This work encourages the
development of NOMCs with some chemical modifications to augment more
efficacy and better activity.
Keywords: Naturally occurring marine compounds (NOMCs), Gap junctions,
Cell adhesive molecules, Molecular docking, Anticancer activity