Entropy calculations on the molten globule state of a protein: side-chain entropies of alpha-lactalbumin.
نویسندگان
چکیده
We present entropy estimates based on molecular dynamics simulations of models of the molten globule state of the protein alpha-lactalbumin at low pH. The entropy calculations use the covariance matrix of atom-positional fluctuations and yield the complete configurational entropy. The configurational entropy of the entire protein and of each of its side chains is calculated. Exposed side chains show a larger entropy compared to buried side chains. A comparison to data from rotamer counting is made and significant differences are found.
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عنوان ژورنال:
- Proteins
دوره 46 2 شماره
صفحات -
تاریخ انتشار 2002