3m4e

Crystal structure of the M113N mutant of alpha-hemolysin bound to beta-cyclodextrinCrystal structure of the M113N mutant of alpha-hemolysin bound to beta-cyclodextrin

Structural highlights 3m4e is a 7 chain structure with sequence from "micrococcus_aureus"_(rosenbach_1884)_zopf_1885 "micrococcus aureus" (rosenbach 1884) zopf 1885. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: Related: 3m3r, 3m4d Gene: hla, hly ("Micrococcus aureus" (Rosenbach 1884) Zopf 1885) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [HLA_STAAU] Alpha-toxin binds to the membrane of eukaryotic cells resulting in the release of low-molecular weight molecules and leading to an eventual osmotic lysis. Heptamer oligomerization and pore formation is required for lytic activity. 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 Engineered protein pores have several potential applications in biotechnology: as sensor elements in stochastic detection and ultrarapid DNA sequencing, as nanoreactors to observe single-molecule chemistry, and in the construction of nano- and micro-devices. One important class of pores contains molecular adapters, which provide internal binding sites for small molecules. Mutants of the alpha-hemolysin (alphaHL) pore that bind the adapter beta-cyclodextrin (betaCD) approximately 10(4) times more tightly than the wild type have been obtained. We now use single-channel electrical recording, protein engineering including unnatural amino acid mutagenesis, and high-resolution x-ray crystallography to provide definitive structural information on these engineered protein nanopores in unparalleled detail. Molecular bases of cyclodextrin adapter interactions with engineered protein nanopores.,Banerjee A, Mikhailova E, Cheley S, Gu LQ, Montoya M, Nagaoka Y, Gouaux E, Bayley H Proc Natl Acad Sci U S A. 2010 Apr 16. PMID:20400691 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Hemolysin

spinqualitylabelsall models 3m4e, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image