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Int. J. Mol. Sci. 2009, 10(4), 1567-1589; doi:10.3390/ijms10041567
Review

Folding by Numbers: Primary Sequence Statistics and Their Use in Studying Protein Folding

 and *
Received: 30 January 2009; in revised form: 30 March 2009 / Accepted: 2 April 2009 / Published: 8 April 2009
(This article belongs to the Special Issue Protein Folding)
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Abstract: The exponential growth over the past several decades in the quantity of both primary sequence data available and the number of protein structures determined has provided a wealth of information describing the relationship between protein primary sequence and tertiary structure. This growing repository of data has served as a prime source for statistical analysis, where underlying relationships between patterns of amino acids and protein structure can be uncovered. Here, we survey the main statistical approaches that have been used for identifying patterns within protein sequences, and discuss sequence pattern research as it relates to both secondary and tertiary protein structure. Limitations to statistical analyses are discussed, and a context for their role within the field of protein folding is given. We conclude by describing a novel statistical study of residue patterning in β-strands, which finds that hydrophobic (i,i+2) pairing in β-strands occurs more often than expected at locations near strand termini. Interpretations involving β-sheet nucleation and growth are discussed.
Keywords: Primary Sequence; Protein Folding; Sequence-Structure Relationship Primary Sequence; Protein Folding; Sequence-Structure Relationship
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wathen, B.; Jia, Z. Folding by Numbers: Primary Sequence Statistics and Their Use in Studying Protein Folding. Int. J. Mol. Sci. 2009, 10, 1567-1589.

AMA Style

Wathen B, Jia Z. Folding by Numbers: Primary Sequence Statistics and Their Use in Studying Protein Folding. International Journal of Molecular Sciences. 2009; 10(4):1567-1589.

Chicago/Turabian Style

Wathen, Brent; Jia, Zongchao. 2009. "Folding by Numbers: Primary Sequence Statistics and Their Use in Studying Protein Folding." Int. J. Mol. Sci. 10, no. 4: 1567-1589.


Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert