Ranjith, P

Dr. Ranjith Padinhateeri

Associate Professor

Phone: +(91-22) 2576 7761
Fax: +(91-22) 2572 3480
E-mail: ranjithp [at] iitb.ac.in
Location: Room No. 306, BSBE Building
Lab web page

Research Interest

My broad areas of interest are biophysics and soft-matter physics. I do theoretical studies to understand various physical and biological phenomena, using a variety of tools from physics including equilibrium and non-equilibrium statistical mechanics, polymer physics, and soft-matter theory. I tackle research problems using a combination of computational (numerical) and analytical methods. My specific areas of interest include (i) Dynamics of cytoskeletal filaments (ii) Chromatin remodeling and (iii) Mechanics of DNA

Academic Background

  • B. Sc.  : Physics, 1997, Zamorin’s Guruvayurappan College, University of Calicut, Kerala.
  • M. Sc. : Physics, 2000, Indian Institute of Technology Madras, Chennai, India
  • Ph.D. : Physics, 2005, Indian Institute of Technology Madras, Chennai, India

Teaching

Biological theromodyanmics, Bioenergetics

Professional Experience

  • Assistant Professor : Indian Institute of Technology Bombay, 2009
  • Post-doctoral fellow : Institut Curie, Paris, France, 2007 — 2009.
  • Post-doctoral fellow : University of Illinois at Chicago/Northwestern University,Evanston, USA, 2005 — 2007.

Awards

  • Innovative Young Biotechnologist Award (IYBA) 2009, Department of Biotechnology, India.
  • Award for the best Ph. D. thesis, Physics, IIT Madras, 2005


Selected Publications

  • Nucleosome positioning and kinetics near transcription-start-site barriers are controlled by interplay between active remodeling and DNA sequence, Jyotsana Parmar, John F Marko, and Ranjith Padinhateeri, Nucleic Acids Research (2013) E-pbulished ahead of print
  • Stretching and bending fluctuations of short DNA molecules, Ranjith Padinhateeri and Gautam I. MenonBiophys. J., 104, 463-271 (2013)
  • History-dependent depolymerization of actin filaments, Ishutesh Jain, David Lacoste, Dulal Panda and Ranjith PadinhateeriBiochemistry, 51, 7580-7587 (2012)
  • Random hydrolysis controls the dynamics instability of microtubules, Ranjith Padinhateeri, A. B. Kolomeisky, and David LacosteBiophys. J., 102, 1274-1283 (2012)
  • Molecular interpretation of ACTH–endorphin coaggregation: relevance to  secretory granule biogenesis, S Ranganathan P. K. Singh, U. Singh, P. S. Singru, R. Padinhateeri and S. K. MajiPLoS ONE, 7, e31924 (2012)
  • Nucleosome positioning in a model of active chromatin remodeling enzymes, Ranjith Padinhateeri and John F. Marko, Proc. Natl. Acad. Sci. USA, 108, 7799-7803 (2011)
  • Non-equilibrium self-assembly of a filament coupled to ATP/GTP hydrolysis, P. Ranjith, D. Lacoste, K. Mallick and J-F. Joanny, Biophysical Journal 96, 2146-2159, (2009)
  • Nucleosome hopping and sliding kinetics determined from dynamics of single , chromatin fibers in Xenopus egg extracts , P. Ranjith, J. Yan and John F. Marko, Proc. Natl. Acad. Sci. USA, 104, 13649-13654 (2007)
  • Distribution Functions, Loop Formation Probabilities and Force-Extension Relations in a Model for Short Double-Stranded DNA Molecules, P. Ranjith, P. B. Sunil Kumar and Gautam I. Menon, Phys. Rev. Lett. 94, 138102 (2005)
  • Dynamics of folding in Semiflexible filaments, P. Ranjith and P. B. Sunil Kumar, Phys. Rev. Lett. 89, 018302 (2002)

List of ongoing projects:

  • Force generation by Actin and Microtubules: In this project we are studying non-equilibrium dynamics of actin and microtubules, and the resulting force generation.
  • Nucleosome dynamics: In this project we are investigating sequence-dependent kinetics of nucleosomes along DNA.