Aderonke Babajide Robert Farber Ivo L. Hofacker Jeff Inman Alan S. Lapedes Peter F. Stadler
Abstract
Knowledge-based potentials can be used to decide whether an amino acid sequence is likely to fold into a prescribed native protein structure. We use this idea to survey the sequence-structure relations in protein space. In particular, we test the following two propositions which were found to be important for efficient evolution: The sequences folding into a particular native fold form extensive neutral networks that percolate through sequence space. The neutral networks of any two native folds approach each other to within a few point mutations. Computer simulations using two very different potential functions, M.Sippl's PROSA pair potential and a neural network based potential, are used to verify these claims.
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Publisher Info
Paper provided by Santa Fe Institute in its series Working Papers with number
98-11-103.
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