1ar1
From Proteopedia
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| - | [[Image:1ar1.gif|left|200px]] | + | [[Image:1ar1.gif|left|200px]] |
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| - | '''STRUCTURE AT 2.7 ANGSTROM RESOLUTION OF THE PARACOCCUS DENITRIFICANS TWO-SUBUNIT CYTOCHROME C OXIDASE COMPLEXED WITH AN ANTIBODY FV FRAGMENT''' | + | {{Structure |
| + | |PDB= 1ar1 |SIZE=350|CAPTION= <scene name='initialview01'>1ar1</scene>, resolution 2.7Å | ||
| + | |SITE= <scene name='pdbsite=CA:Non+Redox+Active+Ca+Binding+Site'>CA</scene>, <scene name='pdbsite=CUA:Cu+A+Binding+Site'>CUA</scene>, <scene name='pdbsite=CUB:Cu+B+Binding+Site'>CUB</scene>, <scene name='pdbsite=HM3:Axial+Heme+A3+Ligand'>HM3</scene>, <scene name='pdbsite=HMA:Axial+Heme+A+Ligands'>HMA</scene> and <scene name='pdbsite=MM:Non+Redox+Active+Mn/Mg+Binding+Site'>MM</scene> | ||
| + | |LIGAND= <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=HEA:HEME-A'>HEA</scene> and <scene name='pdbligand=LDA:LAURYL DIMETHYLAMINE-N-OXIDE'>LDA</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Cytochrome-c_oxidase Cytochrome-c oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.9.3.1 1.9.3.1] | ||
| + | |GENE= | ||
| + | }} | ||
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| + | '''STRUCTURE AT 2.7 ANGSTROM RESOLUTION OF THE PARACOCCUS DENITRIFICANS TWO-SUBUNIT CYTOCHROME C OXIDASE COMPLEXED WITH AN ANTIBODY FV FRAGMENT''' | ||
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==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1AR1 is a [ | + | 1AR1 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Paracoccus_denitrificans Paracoccus denitrificans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AR1 OCA]. |
==Reference== | ==Reference== | ||
| - | Structure at 2.7 A resolution of the Paracoccus denitrificans two-subunit cytochrome c oxidase complexed with an antibody FV fragment., Ostermeier C, Harrenga A, Ermler U, Michel H, Proc Natl Acad Sci U S A. 1997 Sep 30;94(20):10547-53. PMID:[http:// | + | Structure at 2.7 A resolution of the Paracoccus denitrificans two-subunit cytochrome c oxidase complexed with an antibody FV fragment., Ostermeier C, Harrenga A, Ermler U, Michel H, Proc Natl Acad Sci U S A. 1997 Sep 30;94(20):10547-53. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9380672 9380672] |
[[Category: Cytochrome-c oxidase]] | [[Category: Cytochrome-c oxidase]] | ||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
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[[Category: transmembrane]] | [[Category: transmembrane]] | ||
| - | ''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 10:01:14 2008'' |
Revision as of 08:01, 20 March 2008
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| , resolution 2.7Å | |||||||
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| Sites: | , , , , and | ||||||
| Ligands: | , , , and | ||||||
| Activity: | Cytochrome-c oxidase, with EC number 1.9.3.1 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE AT 2.7 ANGSTROM RESOLUTION OF THE PARACOCCUS DENITRIFICANS TWO-SUBUNIT CYTOCHROME C OXIDASE COMPLEXED WITH AN ANTIBODY FV FRAGMENT
Overview
The aa3 type cytochrome c oxidase consisting of the core subunits I and II only was isolated from the soil bacterium Paracoccus denitrificans and crystallized as complex with a monoclonal antibody Fv fragment. Crystals could be grown in the presence of a number of different nonionic detergents. However, only undecyl-beta-D-maltoside and cyclohexyl-hexyl-beta-D-maltoside yielded well-ordered crystals suitable for high resolution x-ray crystallographic studies. The crystals belong to space group P212121 and diffract x-rays to at least 2.5 A (1 A = 0.1 nm) resolution using synchrotron radiation. The structure was determined to a resolution of 2.7 A using molecular replacement and refined to a crystallographic R-factor of 20.5% (Rfree = 25.9%). The refined model includes subunits I and II and the 2 chains of the Fv fragment, 2 heme A molecules, 3 copper atoms, and 1 Mg/Mn atom, a new metal (Ca) binding site, 52 tentatively identified water molecules, and 9 detergent molecules. Only four of the water molecules are located in the cytoplasmic half of cytochrome c oxidase. Most of them are near the interface of subunits I and II. Several waters form a hydrogen-bonded cluster, including the heme propionates and the Mg/Mn binding site. The Fv fragment binds to the periplasmic polar domain of subunit II and is critically involved in the formation of the crystal lattice. The crystallization procedure is well reproducible and will allow for the analysis of the structures of mechanistically interesting mutant cytochrome c oxidases.
About this Structure
1AR1 is a Protein complex structure of sequences from Mus musculus and Paracoccus denitrificans. Full crystallographic information is available from OCA.
Reference
Structure at 2.7 A resolution of the Paracoccus denitrificans two-subunit cytochrome c oxidase complexed with an antibody FV fragment., Ostermeier C, Harrenga A, Ermler U, Michel H, Proc Natl Acad Sci U S A. 1997 Sep 30;94(20):10547-53. PMID:9380672
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