alexa Consensus View Of The Energetics Of Protein Folding Studied On 35 Proteins
ISSN: 0974-276X

Journal of Proteomics & Bioinformatics
Open Access

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9th International Conference on Structural Biology
September 18-20, 2017 Zurich, Switzerland

Debarati Das Gupta, Mandalaparthy Varun and B Jayaram
Indian Institute of Technology Delhi, India
Posters & Accepted Abstracts: J Proteomics Bioinform
DOI: 10.4172/0974-276X-C1-101
Abstract
What factors favor protein folding? This is a textbook question. Parsing the experimental free energies of folding/unfolding into diverse enthalpic and entropic components of solute and solvent favoring or disfavoring folding is not an easy task. In this study, we present a computational protocol for estimating the free energy contributors to protein folding semiquantitatively using ensembles of unfolded and native states generated via molecular dynamics simulations. We tested the methodology on 35 proteins with diverse structural motifs and sizes and found that the calculated free energies correlate well with experiment (correlation coefficient ~ 0.85), enabling us to develop a consensus view of the energetics of folding. As a more sensitive test of the methodology, we also investigated the free energies of folding of an additional 33 single point mutants and obtained a correlation coefficient of 0.8. A notable observation is that the folding free energy components appear to carry signatures of the fold (SCOP classification) of the protein.
Biography

Debarati Das Gupta has obtained a Bachelor’s degree in Chemistry Honors which was conferred at St. Xavier’s College, Kolkata. She has done her Master’s in Chemistry from Indian Institute of Technology Delhi. She has then joined the department as a PhD student under Prof. B Jayaram in July 2013. She is pursuing PhD in the field of protein tertiary structure prediction, analysis of protein folding pathways and also energetic based studies using molecular dynamics simulations.

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