Neutral Networks in Protein Space

Aderonke Babajide, Ivo L. Hofacker, Manfred J. Sippl and Peter F. Stadler

Working Papers from Santa Fe Institute

Abstract: Background: Protein space is explored by means of an inverse folding procedure that makes use of knowledge-based potentials of mean force.

Results: Computer simulations indicate that amino acid sequences folding into a common shape are distributed homogeneously forming extended percolating networks that span the entire sequence space.

Conclusions: The existence of very long neutral paths on all examined protein structures, indicates the existence of neutral networks percolating protein space. The same qualitative results were obtained for some, but not all, restricted amino acid alphabets. In this respect, the sequence-structure map of proteins seems to be very similar to the nucleic acid case.

Keywords: inverse folding; knowledge based potentials; neutral mutations; restricted alphabets; sequence-structure map (search for similar items in EconPapers)
Date: 1996-12
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Persistent link: https://EconPapers.repec.org/RePEc:wop:safiwp:96-12-085

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