2j43

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{{STRUCTURE_2j43| PDB=2j43 | SCENE= }}
{{STRUCTURE_2j43| PDB=2j43 | SCENE= }}
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'''ALPHA-GLUCAN RECOGNITION BY FAMILY 41 CARBOHYDRATE-BINDING MODULES FROM STREPTOCOCCAL VIRULENCE FACTORS'''
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===ALPHA-GLUCAN RECOGNITION BY FAMILY 41 CARBOHYDRATE-BINDING MODULES FROM STREPTOCOCCAL VIRULENCE FACTORS===
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==Overview==
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The ability of pathogenic bacteria to recognize host glycans is often essential to their virulence. Here we report structure-function studies of previously uncharacterized glycogen-binding modules in the surface-anchored pullulanases from Streptococcus pneumoniae (SpuA) and Streptococcus pyogenes (PulA). Multivalent binding to glycogen leads to a strong interaction with alveolar type II cells in mouse lung tissue. X-ray crystal structures of the binding modules reveal a novel fusion of tandem modules into single, bivalent functional domains. In addition to indicating a structural basis for multivalent attachment, the structure of the SpuA modules in complex with carbohydrate provides insight into the molecular basis for glycogen specificity. This report provides the first evidence that intracellular lung glycogen may be a novel target of pathogenic streptococci and thus provides a rationale for the identification of the streptococcal alpha-glucan-metabolizing machinery as virulence factors.
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(as it appears on PubMed at http://www.pubmed.gov), where 17187076 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17187076}}
==About this Structure==
==About this Structure==
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[[Category: Pullulanase]]
[[Category: Pullulanase]]
[[Category: Streptococcal]]
[[Category: Streptococcal]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 02:47:24 2008''

Revision as of 23:47, 27 July 2008

Image:2j43.png

Template:STRUCTURE 2j43

ALPHA-GLUCAN RECOGNITION BY FAMILY 41 CARBOHYDRATE-BINDING MODULES FROM STREPTOCOCCAL VIRULENCE FACTORS

Template:ABSTRACT PUBMED 17187076

About this Structure

2J43 is a Single protein structure of sequence from Streptococcus pyogenes. Full crystallographic information is available from OCA.

Reference

Identification and structural basis of binding to host lung glycogen by streptococcal virulence factors., van Bueren AL, Higgins M, Wang D, Burke RD, Boraston AB, Nat Struct Mol Biol. 2007 Jan;14(1):76-84. Epub 2006 Dec 24. PMID:17187076

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