5m6d

Streptococcus pneumoniae Glyceraldehyde-3-Phosphate Dehydrogenase (SpGAPDH) crystal structure

spinqualitylabelsall models 5m6d, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5m6d is a 2 chain structure with sequence from Streptococcus pneumoniae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2Å Ligands: ACY, CA, CL, CSU, GOL Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function I6L8L9_STREE Publication Abstract from PubMed Bacterial pathogens recruit circulating proteins to their own surfaces, coopting the host protein functions as a mechanism of virulence. Particular attention has focused on the binding of plasminogen (Plg) to bacterial surfaces, as it has been shown that this interaction contributes to bacterial adhesion to host cells, invasion of host tissues and evasion of the immune system. Several bacterial proteins are known to serve as receptors for Plg including glyceraldehyde-3-phosphate dehydrogenase (GAPDH), a cytoplasmic enzyme that appears on the cell surface in this moonlighting role. Although Plg typically binds to these receptors via several lysine-binding domains, the specific interactions that occur have not been documented in all cases. However, identification of the relevant residues could help define strategies for mitigating the virulence of important human pathogens, like Streptococcus pneumoniae (Sp). To shed light on this question, we have described a combination of peptide-spot array screening, competition and SPR assays, high-resolution crystallography and mutational analyses to characterize the interaction between SpGAPDH and Plg. We identified three SpGAPDH lysire residues that were instrumental in defining the kinetic and thermodynamic parameters of the interaction. Altogether, the integration of the data presented in this work allows us to propose a structural model for the molecular interaction of the SpGAPDH-Plg complex. Deciphering key residues involved in the virulence-promoting interactions between Streptococcus pneumoniae and human plasminogen.,Moreau C, Terrasse R, Thielens NM, Vernet T, Gaboriaud C, Di Guilmi AM J Biol Chem. 2016 Dec 23. pii: jbc.M116.764209. doi: 10.1074/jbc.M116.764209. PMID:28011643 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Glyceraldehyde-3-phosphate dehydrogenase 3D structures

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