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1gox

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{{STRUCTURE_1gox| PDB=1gox | SCENE= }}
{{STRUCTURE_1gox| PDB=1gox | SCENE= }}
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'''REFINED STRUCTURE OF SPINACH GLYCOLATE OXIDASE AT 2 ANGSTROMS RESOLUTION'''
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===REFINED STRUCTURE OF SPINACH GLYCOLATE OXIDASE AT 2 ANGSTROMS RESOLUTION===
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==Overview==
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The amino acid sequence of glycolate oxidase from spinach has been fitted to an electron density map of 2.0 A nominal resolution and the structure has been refined using the restrained parameter least-squares refinement of Hendrickson and Konnert. A final crystallographic R-factor of 18.9% was obtained for 32,888 independent reflections from 5.5 to 2 A resolution. The geometry of the model, consisting of 350 amino acid residues, the cofactor flavin mononucleotide and 298 solvent molecules, is close to ideal with root-mean-square deviations of 0.015 A in bond lengths and 2.6 degrees in bond angles. The expected trimodal distribution with preference for staggered conformation is obtained for the side-chain chi 1-angles. The core of the subunit is built up from the eight beta-strands in the beta/alpha-barrel. This core consists of two hydrophobic layers. One in the center is made up of residues pointing in from the beta-strands towards the barrel axis and the second, consisting of two segments of residues, pointing out from the beta-strands towards the eight alpha-helices of the barrel and pointing from the helices towards the strands. The hydrogen bond pattern for the beta-strands in the beta/alpha-barrel is described. There are a number of residues with 3(10)-helix conformation, in particular there is one left-handed helix. The ordered solvent molecules are organized mainly in clusters. The average isotropic temperature factor is quite high, 27.1 A2, perhaps a reflection of the high solvent content in the crystal. The octameric glycolate oxidase molecule, which has 422 symmetry, makes strong interactions around the 4-fold axis forming a tight tetramer, but only weak interactions between the two tetramers forming the octamer.
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(as it appears on PubMed at http://www.pubmed.gov), where 2681790 is the PubMed ID number.
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{{ABSTRACT_PUBMED_2681790}}
==About this Structure==
==About this Structure==
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[[Category: Spinacia oleracea]]
[[Category: Spinacia oleracea]]
[[Category: Lindqvist, Y.]]
[[Category: Lindqvist, Y.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 17:50:24 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 05:37:27 2008''

Revision as of 02:37, 1 July 2008

Image:1gox.png

Template:STRUCTURE 1gox

REFINED STRUCTURE OF SPINACH GLYCOLATE OXIDASE AT 2 ANGSTROMS RESOLUTION

Template:ABSTRACT PUBMED 2681790

About this Structure

1GOX is a Single protein structure of sequence from Spinacia oleracea. Full crystallographic information is available from OCA.

Reference

Refined structure of spinach glycolate oxidase at 2 A resolution., Lindqvist Y, J Mol Biol. 1989 Sep 5;209(1):151-66. PMID:2681790

Page seeded by OCA on Tue Jul 1 05:37:27 2008

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