1ivv

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{{STRUCTURE_1ivv| PDB=1ivv | SCENE= }}
{{STRUCTURE_1ivv| PDB=1ivv | SCENE= }}
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'''Crystal structure of copper amine oxidase from Arthrobacter globiformis: Early intermediate in topaquinone biogenesis'''
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===Crystal structure of copper amine oxidase from Arthrobacter globiformis: Early intermediate in topaquinone biogenesis===
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==Overview==
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The quinone cofactor TPQ in copper amine oxidase is generated by posttranslational modification of an active site tyrosine residue. Using X-ray crystallography, we have probed the copper-dependent autooxidation process of TPQ in the enzyme from Arthrobacter globiformis. Apo enzyme crystals were anaerobically soaked with copper; the structure determined from this crystal provides a view of the initial state: the unmodified tyrosine coordinated to the bound copper. Exposure of the copper-bound crystals to oxygen led to the formation of freeze-trapped intermediates; structural analyses indicate that these intermediates contain dihydroxyphenylalanine quinone and trihydroxyphenylalanine. These are the first visualized intermediates during TPQ biogenesis in copper amine oxidase.
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(as it appears on PubMed at http://www.pubmed.gov), where 12134140 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12134140}}
==About this Structure==
==About this Structure==
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[[Category: Quinone cofactor]]
[[Category: Quinone cofactor]]
[[Category: Tpq]]
[[Category: Tpq]]
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Revision as of 11:05, 1 July 2008

Image:1ivv.png

Template:STRUCTURE 1ivv

Crystal structure of copper amine oxidase from Arthrobacter globiformis: Early intermediate in topaquinone biogenesis

Template:ABSTRACT PUBMED 12134140

About this Structure

1IVV is a Single protein structure of sequence from Arthrobacter globiformis. Full crystallographic information is available from OCA.

Reference

X-ray snapshots of quinone cofactor biogenesis in bacterial copper amine oxidase., Kim M, Okajima T, Kishishita S, Yoshimura M, Kawamori A, Tanizawa K, Yamaguchi H, Nat Struct Biol. 2002 Aug;9(8):591-6. PMID:12134140

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