1r19

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|ACTIVITY=
|ACTIVITY=
|GENE= sdrG ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1282 Staphylococcus epidermidis])
|GENE= sdrG ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1282 Staphylococcus epidermidis])
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|DOMAIN=
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|RELATEDENTRY=[[1r17|1R17]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1r19 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r19 OCA], [http://www.ebi.ac.uk/pdbsum/1r19 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1r19 RCSB]</span>
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[[Category: sdrg native]]
[[Category: sdrg native]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:45:30 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:21:48 2008''

Revision as of 20:21, 30 March 2008


PDB ID 1r19

Drag the structure with the mouse to rotate
, resolution 3.51Å
Gene: sdrG (Staphylococcus epidermidis)
Related: 1R17


Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



Crystal Structure Analysis of S.epidermidis adhesin SdrG binding to Fibrinogen (Apo structure)


Overview

Gram-positive pathogens such as staphylococci contain multiple cell wall-anchored proteins that serve as an interface between the microbe and its environment. Some of these proteins act as adhesins and mediate bacterial attachment to host tissues. SdrG is a cell wall-anchored adhesin from Staphylococcus epidermidis that binds to the Bbeta chain of human fibrinogen (Fg) and is necessary and sufficient for bacterial attachment to Fg-coated biomaterials. Here, we present the crystal structures of the ligand binding region of SdrG as an apoprotein and in complex with a synthetic peptide analogous to its binding site in Fg. Analysis of the crystal structures, along with mutational studies of both the protein and of the peptide, reveals that SdrG binds to its ligand with a dynamic "dock, lock, and latch" mechanism. We propose that this mechanism represents a general mode of ligand binding for structurally related cell wall-anchored proteins of gram-positive bacteria.

About this Structure

1R19 is a Single protein structure of sequence from Staphylococcus epidermidis. Full crystallographic information is available from OCA.

Reference

A "dock, lock, and latch" structural model for a staphylococcal adhesin binding to fibrinogen., Ponnuraj K, Bowden MG, Davis S, Gurusiddappa S, Moore D, Choe D, Xu Y, Hook M, Narayana SV, Cell. 2003 Oct 17;115(2):217-28. PMID:14567919

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