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Peptidoglycan Hydrolase Enterolysin A Recognizes Lipoteichoic Acid Chains in the Cell Walls of Sensitive Bacteria

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C-terminal domain of peptidoglycan hydrolase enterolysin A (EnlA) is involved in specific recognition and binding to the target cell envelopes and represents true cell wall binding (CWB) domain. Sensitivity/resistance to EnlA is dependent on binding ability/disability of its CWB domain. We assume that main mechanism of resistance against EnlA is absence of the specific receptor on the cell surface, which is necessary for binding of the enzyme molecule. Using competitive and enzymatic assays we have uncovered the chemical nature of the EnlA receptor, which is a lipoteichoic acid.

Keywords: Cell wall binding; Enterococcus; enterolysin A; hydrolase; lipoteichoic acid; peptidoglycan

Document Type: Research Article


Publication date: September 1, 2012

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.

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