1f4u

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{{Seed}}
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{{STRUCTURE_1f4u| PDB=1f4u | SCENE= }}
{{STRUCTURE_1f4u| PDB=1f4u | SCENE= }}
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'''THERMOPHILIC P450: CYP119 FROM SULFOLOBUS SOLFACTARICUS'''
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===THERMOPHILIC P450: CYP119 FROM SULFOLOBUS SOLFACTARICUS===
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==Overview==
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The structure of the first P450 identified in Archaea, CYP119 from Sulfolobus solfataricus, has been solved in two different crystal forms that differ by the ligand (imidazole or 4-phenylimidazole) coordinated to the heme iron. A comparison of the two structures reveals an unprecedented rearrangement of the active site to adapt to the different size and shape of ligands bound to the heme iron. These changes involve unraveling of the F helix C-terminal segment to extend a loop structure connecting the F and G helices, allowing the longer loop to dip down into the active site and interact with the smaller imidazole ligand. A comparison of CYP119 with P450cam and P450eryF indicates an extensive clustering of aromatic residues may provide the structural basis for the enhanced thermal stability of CYP119. An additional feature of the 4-phenylimidazole-bound structure is a zinc ion tetrahedrally bound by symmetry-related His and Glu residues.
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(as it appears on PubMed at http://www.pubmed.gov), where 10859321 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10859321}}
==About this Structure==
==About this Structure==
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[[Category: Yano, J K.]]
[[Category: Yano, J K.]]
[[Category: P450 fold]]
[[Category: P450 fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 02:41:35 2008''

Revision as of 23:41, 30 June 2008

Image:1f4u.png

Template:STRUCTURE 1f4u

THERMOPHILIC P450: CYP119 FROM SULFOLOBUS SOLFACTARICUS

Template:ABSTRACT PUBMED 10859321

About this Structure

1F4U is a Single protein structure of sequence from Sulfolobus solfataricus. Full crystallographic information is available from OCA.

Reference

Crystal structure of a thermophilic cytochrome P450 from the archaeon Sulfolobus solfataricus., Yano JK, Koo LS, Schuller DJ, Li H, Ortiz de Montellano PR, Poulos TL, J Biol Chem. 2000 Oct 6;275(40):31086-92. PMID:10859321

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