Specific Recognition of Interresidue and interpeptide in Proteins

Abstract

Abstract: We extracted 524 pairs of parallel peptide segments and 2283 pairs of anti-parallel pep-tide segments of 5 residues long from the 125 heterogeneous proteins,and then applied the statistical analysis algorithm to calculating residue-residue pairing frequencies.Finally the relative pairing frequencies or affinities were obtained.From the affinities it can be seen that there exists substantially specific residue-reside pairing between two strands of the interactive peptide segments.The obtained results will be helpful for protein engineering and structure prediction.

Key words: Hydrophobicity, Residue pairing, Peptide segment, Specific recognition

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WANG Yu-Hong, LIU Xiao-Qing, LI Wei, MA Su-Cheng. Specific Recognition of Interresidue and interpeptide in Proteins[J]. Chem. J. Chinese Universities, 1992, 13(9): 1271.

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Specific Recognition of Interresidue and interpeptide in Proteins

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