1c0l: Difference between revisions
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|PDB= 1c0l |SIZE=350|CAPTION= <scene name='initialview01'>1c0l</scene>, resolution 1.73Å | |PDB= 1c0l |SIZE=350|CAPTION= <scene name='initialview01'>1c0l</scene>, resolution 1.73Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand= | |LIGAND= <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FLA:TRIFLUOROALANINE'>FLA</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
|RELATEDENTRY=[[1c0i|1C0I]], [[1c0k|1C0K]], [[1c0p|1C0P]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1c0l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1c0l OCA], [http://www.ebi.ac.uk/pdbsum/1c0l PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1c0l RCSB]</span> | |||
}} | }} | ||
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[[Category: Umhau, S.]] | [[Category: Umhau, S.]] | ||
[[Category: Welte, W.]] | [[Category: Welte, W.]] | ||
[[Category: flavin containing protein alpha-beta-alpha motif]] | [[Category: flavin containing protein alpha-beta-alpha motif]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:12:11 2008'' | ||
Revision as of 19:12, 30 March 2008
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| , resolution 1.73Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , | ||||||
| Related: | 1C0I, 1C0K, 1C0P
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
D-AMINO ACID OXIDASE: STRUCTURE OF SUBSTRATE COMPLEXES AT VERY HIGH RESOLUTION REVEAL THE CHEMICAL REACTTION MECHANISM OF FLAVIN DEHYDROGENATION
OverviewOverview
Flavin is one of the most versatile redox cofactors in nature and is used by many enzymes to perform a multitude of chemical reactions. d-Amino acid oxidase (DAAO), a member of the flavoprotein oxidase family, is regarded as a key enzyme for the understanding of the mechanism underlying flavin catalysis. The very high-resolution structures of yeast DAAO complexed with d-alanine, d-trifluoroalanine, and l-lactate (1.20, 1.47, and 1.72 A) provide strong evidence for hydride transfer as the mechanism of dehydrogenation. This is inconsistent with the alternative carbanion mechanism originally favored for this type of enzymatic reaction. The step of hydride transfer can proceed without involvement of amino acid functional groups. These structures, together with results from site-directed mutagenesis, point to orbital orientation/steering as the major factor in catalysis. A diatomic species, proposed to be a peroxide, is found at the active center and on the Re-side of the flavin. These results are of general relevance for the mechanisms of flavoproteins and lead to the proposal of a common dehydrogenation mechanism for oxidases and dehydrogenases.
About this StructureAbout this Structure
1C0L is a Single protein structure of sequence from Rhodosporidium toruloides. Full crystallographic information is available from OCA.
ReferenceReference
The x-ray structure of D-amino acid oxidase at very high resolution identifies the chemical mechanism of flavin-dependent substrate dehydrogenation., Umhau S, Pollegioni L, Molla G, Diederichs K, Welte W, Pilone MS, Ghisla S, Proc Natl Acad Sci U S A. 2000 Nov 7;97(23):12463-8. PMID:11070076
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