3hvn

Crystal structure of cytotoxin protein suilysin from Streptococcus suis

spinqualitylabelsall models 3hvn, resolution 2.85Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3hvn is a 1 chain structure with sequence from Streptococcus suis 05ZYH33. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.852Å Ligands: CFH, HTO Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q55996_STRSU Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Cholesterol-dependent cytolysins (CDC) are pore forming toxins. A prototype of the CDC family members is perfringolysin O (PFO), which directly binds to the cell membrane enriched in cholesterol, causing cell lysis. However, an exception of this general observation is intermedilysin (ILY) of Streptococcus intermedius, which requires human CD59 as a receptor in addition to cholesterol for its hemolytic activity. A possible explanation of this functional difference is the conformational variation between the C-terminal domains of the two toxins, particularly in the highly conserved undecapeptide termed tryptophan rich motif. Here, we present the crystal structure of suilysin, a CDC toxin from the infectious swine pathogen Streptococcus suis. Like PFO, suilysin does not require a host receptor for hemolytic activity; yet the crystal structure of suilysin exhibits a similar conformation in the tryptophan rich motif to ILY. This observation suggests that the current view of the structure-function relationship between CDC proteins and membrane association is far from complete. Crystal structure of cytotoxin protein suilysin from Streptococcus suis.,Xu L, Huang B, Du H, Zhang XC, Xu J, Li X, Rao Z Protein Cell. 2010 Jan;1(1):96-105. Epub 2010 Feb 7. PMID:21204001 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Hemolysin 3D structures

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