Molecular dynamics simulation of egf and tgf-α: Conformation and receptor binding properties

Sándor Lovas, Richard F. Murphy

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Three 1 ns-long molecular dynamics (MD) simulations were performed on murine epidermal growth factor (mEGF), human epidermal growth factor (hEGF) and human transforming growth factor-alpha (hTGF-α) to obtain further information about their conformational properties. The initial structures were taken based on NMR spectroscopy data and were energy-minimized before MD simulations. No major conformational transitions were observed during simulations. Domain movements, predictable from the mitten model of EGF, were observed only in the simulation of hTGF-α and could account for its different receptor binding properties. Inter-domain interactions, not revealed by the NMR data, were observed between aromatic side-chains for each of the polypeptides and seem to stabilize the conformation necessary for binding.

Original languageEnglish (US)
Pages (from-to)543-550
Number of pages8
JournalJournal of Molecular Structure: THEOCHEM
Volume398-399
DOIs
StatePublished - Jun 30 1997

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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