1gx2

Recombinant horseradish peroxidase Phe209Ser complex with benzhydroxamic acid

spinqualitylabelsall models 1gx2, resolution 2.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1gx2 is a 2 chain structure with sequence from Armoracia rusticana. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.2Å Ligands: BHO, CA, HEM Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function PER1A_ARMRU Removal of H(2)O(2), oxidation of toxic reductants, biosynthesis and degradation of lignin, suberization, auxin catabolism, response to environmental stresses such as wounding, pathogen attack and oxidative stress. These functions might be dependent on each isozyme/isoform in each plant tissue. 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 The crystal structure of horseradish peroxidase isozyme C (HRPC) has been solved to 2.15 A resolution. An important feature unique to the class III peroxidases is a long insertion, 34 residues in HRPC, between helices F and G. This region, which defines part of the substrate access channel, is not present in the core conserved fold typical of peroxidases from classes I and II. Comparison of HRPC and peanut peroxidase (PNP), the only other class III (higher plant) peroxidase for which an X-ray structure has been completed, reveals that the structure in this region is highly variable even within class III. For peroxidases of the HRPC type, characterized by a larger FG insertion (seven residues relative to PNP) and a shorter F' helix, we have identified the key residue involved in direct interactions with aromatic donor molecules. HRPC is unique in having a ring of three peripheral Phe residues, 142, 68 and 179. These guard the entrance to the exposed haem edge. We predict that this aromatic region is important for the ability of HRPC to bind aromatic substrates. Crystal structure of horseradish peroxidase C at 2.15 A resolution.,Gajhede M, Schuller DJ, Henriksen A, Smith AT, Poulos TL Nat Struct Biol. 1997 Dec;4(12):1032-8. PMID:009406554 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Horseradish peroxidase

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