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Science 5 October 2001:
Vol. 294. no. 5540, pp. 93 - 96
DOI: 10.1126/science.1065659
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Viewpoint

Protein Structure Prediction and Structural Genomics

David Baker,1 Andrej Sali2

Genome sequencing projects are producing linear amino acid sequences, but full understanding of the biological role of these proteins will require knowledge of their structure and function. Although experimental structure determination methods are providing high-resolution structure information about a subset of the proteins, computational structure prediction methods will provide valuable information for the large fraction of sequences whose structures will not be determined experimentally. The first class of protein structure prediction methods, including threading and comparative modeling, rely on detectable similarity spanning most of the modeled sequence and at least one known structure. The second class of methods, de novo or ab initio methods, predict the structure from sequence alone, without relying on similarity at the fold level between the modeled sequence and any of the known structures. In this Viewpoint, we begin by describing the essential features of the methods, the accuracy of the models, and their application to the prediction and understanding of protein function, both for single proteins and on the scale of whole genomes. We then discuss the important role that protein structure prediction methods play in the growing worldwide effort in structural genomics.

1 Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA. E-mail: dabaker{at}u.washington.edu.
2 Laboratory of Molecular Biophysics, Pels Family Center for Biochemistry and Structural Biology, The Rockefeller University, New York, NY 10021, USA. E-mail: sali{at}rockefeller.edu.

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