Influence of C-H...O interactions on the structural stability of β-lactamases

被引:0
作者
P. Lavanya
Sudha Ramaiah
Anand Anbarasu
机构
[1] VIT University,Medical & Biological Computing Laboratory, School of Biosciences and Technology
来源
Journal of Biological Physics | 2013年 / 39卷
关键词
β-lactamases; CH...O interactions; Stabilization centers; Conservation; Solvent accessibility; Secondary structure;
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学科分类号
摘要
β-Lactamases produced by pathogenic bacteria cleave β-lactam antibiotics and render them ineffective. Understanding the principles that govern the structural stability of β-lactamases requires elucidation of the nature of the interactions that are involved in stabilization. In the present study, we systematically analyze the influence of CH...O interactions on determining the specificity and stability of β-lactamases in relation to environmental preferences. It is interesting to note that all the residues located in the active site of β-lactamases are involved in CH...O interactions. A significant percentage of CH...O interactions have a higher conservation score and short-range interactions are the predominant type of interactions in β-lactamases. These results will be useful in understanding the stability patterns of β-lactamases.
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页码:649 / 663
页数:14
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共 190 条
[1]  
Mandage R(2012)Discovery of β-lactam antibiotic resistance specific functional residues: a bioinformatics approach eJBio. 8 15-18
[2]  
Kamath P(1998)Beta-lactamases: protein evolution in real time Trends Microbiol. 6 322-327
[3]  
Wakle M(2006)Mechanisms of antimicrobial resistance in bacteria Am. J. Med. 119 3-10
[4]  
Momin A(1984)Hydrogen bonding in globular proteins Prog. Biophys. Mol. Biol. 44 97-179
[5]  
Petrosino J(1994)Lengthening of the covalent O-H bond in O-H...O hydrogen bonds re-examined from low-temperature neutron diffraction data of organic compounds Acta Crystallogr. B 50 348-357
[6]  
Cantu C(2009)Exploring the C-H...O interactions in glycoproteins Appl. Biochem. Biotechnol. 159 343-354
[7]  
Palzkill T(2007)Investigations on unconventional hydrogen bonds in RNA binding proteins: the role in CH⋯O C interactions BioSystems 90 792-801
[8]  
Tenover FC(1998)A role for in CH⋯O C interactions in protein-DNA recognition J. Mol. Biol. 277 1129-1140
[9]  
Baker EN(2000)Plasticity in the primary binding site of galactose/ J. Biol. Chem. 275 28483-28487
[10]  
Hubbard RE(1996)-acetyl galactosamine-specific lectins. Implication of the C-H...O hydrogen bond at the specificity-determining C-4 locus of the saccharide in 4-methoxygalactose recognition by jacalin and winged bean (basic) agglutinin J. Mol. Biol. 264 734-742