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. 1999 Dec;8(12):2734–2741. doi: 10.1110/ps.8.12.2734

Robustness of protein folding kinetics to surface hydrophobic substitutions.

H Gu 1, N Doshi 1, D E Kim 1, K T Simons 1, J V Santiago 1, S Nauli 1, D Baker 1
PMCID: PMC2144221  PMID: 10631990

Abstract

We use both combinatorial and site-directed mutagenesis to explore the consequences of surface hydrophobic substitutions for the folding of two small single domain proteins, the src SH3 domain, and the IgG binding domain of Peptostreptococcal protein L. We find that in almost every case, destabilizing surface hydrophobic substitutions have much larger effects on the rate of unfolding than on the rate of folding, suggesting that nonnative hydrophobic interactions do not significantly interfere with the rate of core assembly.

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Selected References

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