Daisuke Kuroda1, Jeffrey J Gray2. 1. Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA, Department of Analytical and Physical Chemistry, Showa University School of Pharmacy, Tokyo, 142-8555, Japan. 2. Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA, Program in Molecular Biophysics, Johns Hopkins University, Baltimore, MD 21218, USA.
Abstract
MOTIVATIONS: Characterizing protein-protein interfaces and the hydrogen bonds is a first step to better understand proteins' structures and functions toward high-resolution protein design. However, there are few large-scale surveys of hydrogen bonds of interfaces. In addition, previous work of shape complementarity of protein complexes suggested that lower shape complementarity in antibody-antigen interfaces is related to their evolutionary origin. RESULTS: Using 6637 non-redundant protein-protein interfaces, we revealed peculiar features of various protein complex types. In contrast to previous findings, the shape complementarity of antibody-antigen interfaces resembles that of the other interface types. These results highlight the importance of hydrogen bonds during evolution of protein interfaces and rectify the prevailing belief that antibodies have lower shape complementarity. CONTACT: jgray@jhu.edu SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.
MOTIVATIONS: Characterizing protein-protein interfaces and the hydrogen bonds is a first step to better understand proteins' structures and functions toward high-resolution protein design. However, there are few large-scale surveys of hydrogen bonds of interfaces. In addition, previous work of shape complementarity of protein complexes suggested that lower shape complementarity in antibody-antigen interfaces is related to their evolutionary origin. RESULTS: Using 6637 non-redundant protein-protein interfaces, we revealed peculiar features of various protein complex types. In contrast to previous findings, the shape complementarity of antibody-antigen interfaces resembles that of the other interface types. These results highlight the importance of hydrogen bonds during evolution of protein interfaces and rectify the prevailing belief that antibodies have lower shape complementarity. CONTACT: jgray@jhu.edu SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.
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