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A genetically engineered protein domain binding to bacterial murein, archaeal pseudomurein, and fungal chitin cell wall material.

ABSTRACT: The major murein and pseudomurein cell wall-binding domains, i.e., the Lysin Motif (LysM) (Pfam PF01476) and pseudomurein cell wall-binding (PMB) (Pfam PF09373) motif, respectively, were genetically fused. The fusion protein is capable of binding to both murein- and pseudomurein-containing cell walls. In addition, it also binds to chitin, the major polymer of fungal cell walls. Binding is influenced by pH and occurs at a pH close to the pI of the binding protein. Functional studies on truncated versions of the fusion protein revealed that murein and chitin binding is provided by the LysM domain, while binding to pseudomurein is achieved through the PMB domain.

SUBMITTER: Visweswaran GR

PROVIDER: S-EPMC3466432 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature

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A genetically engineered protein domain binding to bacterial murein, archaeal pseudomurein, and fungal chitin cell wall material.

Visweswaran Ganesh Ram R GR Dijkstra Bauke W BW Kok Jan J

Applied microbiology and biotechnology 20120120 3

The major murein and pseudomurein cell wall-binding domains, i.e., the Lysin Motif (LysM) (Pfam PF01476) and pseudomurein cell wall-binding (PMB) (Pfam PF09373) motif, respectively, were genetically fused. The fusion protein is capable of binding to both murein- and pseudomurein-containing cell walls. In addition, it also binds to chitin, the major polymer of fungal cell walls. Binding is influenced by pH and occurs at a pH close to the pI of the binding protein. Functional studies on truncated ...[more]

PMID: 22262228

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