2c1u: Difference between revisions
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|PDB= 2c1u |SIZE=350|CAPTION= <scene name='initialview01'>2c1u</scene>, resolution 1.952Å | |PDB= 2c1u |SIZE=350|CAPTION= <scene name='initialview01'>2c1u</scene>, resolution 1.952Å | ||
|SITE= <scene name='pdbsite=AC1:Ca+Binding+Site+For+Chain+D'>AC1</scene> | |SITE= <scene name='pdbsite=AC1:Ca+Binding+Site+For+Chain+D'>AC1</scene> | ||
|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> | |LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene> | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/Cytochrome-c_peroxidase Cytochrome-c peroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.5 1.11.1.5] | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Cytochrome-c_peroxidase Cytochrome-c peroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.5 1.11.1.5] </span> | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
|RELATEDENTRY= | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2c1u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2c1u OCA], [http://www.ebi.ac.uk/pdbsum/2c1u PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2c1u RCSB]</span> | |||
}} | }} | ||
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[[Category: Echalier, A.]] | [[Category: Echalier, A.]] | ||
[[Category: Fulop, V.]] | [[Category: Fulop, V.]] | ||
[[Category: electron transport]] | [[Category: electron transport]] | ||
[[Category: heme]] | [[Category: heme]] | ||
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[[Category: peroxidase]] | [[Category: peroxidase]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:15:03 2008'' | ||
Revision as of 02:15, 31 March 2008
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| , resolution 1.952Å | |||||||
|---|---|---|---|---|---|---|---|
| Sites: | |||||||
| Ligands: | , | ||||||
| Activity: | Cytochrome-c peroxidase, with EC number 1.11.1.5 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF THE DI-HAEM CYTOCHROME C PEROXIDASE FROM PARACOCCUS PANTOTROPHUS- OXIDISED FORM
OverviewOverview
Bacterial cytochrome c peroxidases contain an electron transferring (E) heme domain and a peroxidatic (P) heme domain. All but one of these enzymes are isolated in an inactive oxidized state and require reduction of the E heme by a small redox donor protein in order to activate the P heme. Here we present the structures of the inactive oxidized and active mixed valence enzyme from Paracoccus pantotrophus. Chain flexibility in the former, as expressed by the crystallographic temperature factors, is strikingly distributed in certain loop regions, and these coincide with the regions of conformational change that occur in forming the active mixed valence enzyme. On the basis of these changes, we postulate a series of events that occur to link the trigger of the electron entering the E heme from either pseudoazurin or cytochrome c(550) and the dissociation of a coordinating histidine at the P heme, which allows substrate access.
About this StructureAbout this Structure
2C1U is a Single protein structure of sequence from Paracoccus pantotrophus. Full crystallographic information is available from OCA.
ReferenceReference
Activation and catalysis of the di-heme cytochrome c peroxidase from Paracoccus pantotrophus., Echalier A, Goodhew CF, Pettigrew GW, Fulop V, Structure. 2006 Jan;14(1):107-17. PMID:16407070
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