1qks
From Proteopedia
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| - | [[Image:1qks.jpg|left|200px]] | + | [[Image:1qks.jpg|left|200px]] |
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| - | '''CYTOCHROME CD1 NITRITE REDUCTASE, OXIDISED FORM''' | + | {{Structure |
| + | |PDB= 1qks |SIZE=350|CAPTION= <scene name='initialview01'>1qks</scene>, resolution 1.28Å | ||
| + | |SITE= <scene name='pdbsite=C1A:The+C+Haem+Is+The+Point+Of+Electron+Entry'>C1A</scene>, <scene name='pdbsite=C1B:The+C+Haem+Is+The+Point+Of+Electron+Entry'>C1B</scene>, <scene name='pdbsite=D1A:The+D1+Haem+Is+The+Site+Of+Catalytic+Acti'>D1A</scene> and <scene name='pdbsite=D1B:The+D1+Haem+Is+The+Site+Of+Catalytic+Acti'>D1B</scene> | ||
| + | |LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=DHE:HEME+D'>DHE</scene> and <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''CYTOCHROME CD1 NITRITE REDUCTASE, OXIDISED FORM''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1QKS is a [ | + | 1QKS is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Paracoccus_denitrificans Paracoccus denitrificans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QKS OCA]. |
==Reference== | ==Reference== | ||
| - | The anatomy of a bifunctional enzyme: structural basis for reduction of oxygen to water and synthesis of nitric oxide by cytochrome cd1., Fulop V, Moir JW, Ferguson SJ, Hajdu J, Cell. 1995 May 5;81(3):369-77. PMID:[http:// | + | The anatomy of a bifunctional enzyme: structural basis for reduction of oxygen to water and synthesis of nitric oxide by cytochrome cd1., Fulop V, Moir JW, Ferguson SJ, Hajdu J, Cell. 1995 May 5;81(3):369-77. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7736589 7736589] |
[[Category: Paracoccus denitrificans]] | [[Category: Paracoccus denitrificans]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: periplasmic]] | [[Category: periplasmic]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:38:59 2008'' |
Revision as of 11:39, 20 March 2008
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| , resolution 1.28Å | |||||||
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| Sites: | , , and | ||||||
| Ligands: | , , and | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CYTOCHROME CD1 NITRITE REDUCTASE, OXIDISED FORM
Overview
Cytochrome cd1-nitrite reductase is a bifunctional enzyme that catalyzes the one-electron reduction of nitrite to nitric oxide and the four-electron reduction of oxygen to water. The 1.55 A crystal structure of the dimeric enzyme from Thiosphaera pantotropha is reported here. The protein was sequenced from the X-ray structure. Each subunit contains a covalent c heme with two axial His ligands (His-17, His-69) and a unique noncovalent d1 heme ligated by Tyr-25 and His-200. The d1 heme is the mononuclear iron center where both oxygen and nitrite reduction take place. The two types of heme are located in separate domains whose arrangement suggests a mechanism requiring domain movement during catalysis.
About this Structure
1QKS is a Single protein structure of sequence from Paracoccus denitrificans. Full crystallographic information is available from OCA.
Reference
The anatomy of a bifunctional enzyme: structural basis for reduction of oxygen to water and synthesis of nitric oxide by cytochrome cd1., Fulop V, Moir JW, Ferguson SJ, Hajdu J, Cell. 1995 May 5;81(3):369-77. PMID:7736589
Page seeded by OCA on Thu Mar 20 13:38:59 2008
Categories: Paracoccus denitrificans | Single protein | Fulop, V. | DHE | GOL | HEC | SO4 | Denitrification | Electron transport | Enzyme | Nitrite reductase | Oxidoreductase | Periplasmic
