|
|
| (10 intermediate revisions not shown.) |
| Line 1: |
Line 1: |
| - | [[Image:2b2r.gif|left|200px]] | + | #REDIRECT [[5sw6]] This PDB entry is obsolete and replaced by 5sw6 |
| - | | + | |
| - | {{Structure
| + | |
| - | |PDB= 2b2r |SIZE=350|CAPTION= <scene name='initialview01'>2b2r</scene>, resolution 1.90Å
| + | |
| - | |SITE=
| + | |
| - | |LIGAND= <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=O:OXYGEN+ATOM'>O</scene>
| + | |
| - | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Catalase Catalase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.6 1.11.1.6] </span>
| + | |
| - | |GENE= katG ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=28450 Burkholderia pseudomallei])
| + | |
| - | |DOMAIN=
| + | |
| - | |RELATEDENTRY=[[1mwv|1MWV]], [[2b2r|2B2R]], [[2b2q|2B2Q]], [[2b2o|2B2O]]
| + | |
| - | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2b2r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2b2r OCA], [http://www.ebi.ac.uk/pdbsum/2b2r PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2b2r RCSB]</span>
| + | |
| - | }}
| + | |
| - | | + | |
| - | '''Crystal structure of an oxoferryl species of catalase-peroxidase KATG at pH5.6'''
| + | |
| - | | + | |
| - | | + | |
| - | ==Overview==
| + | |
| - | The catalase reaction of catalase-peroxidases involves catalase-specific features built into a peroxidase core. An arginine, 20 A from the active-site heme, acts as a molecular switch moving between two conformations, one that activates heme oxidation and one that activates oxoferryl heme reduction by H(2)O(2), facilitating the catalatic pathway in a peroxidase. The influence of the arginine is imparted to the heme through its association with or dissociation from a tyrosinate that modulates reactivity through a Met-Tyr-Trp crosslinked adduct and a pi electron interaction of the heme with the adduct Trp.
| + | |
| - | | + | |
| - | ==About this Structure==
| + | |
| - | 2B2R is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Burkholderia_pseudomallei Burkholderia pseudomallei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2B2R OCA].
| + | |
| - | | + | |
| - | ==Reference==
| + | |
| - | A molecular switch and electronic circuit modulate catalase activity in catalase-peroxidases., Carpena X, Wiseman B, Deemagarn T, Singh R, Switala J, Ivancich A, Fita I, Loewen PC, EMBO Rep. 2005 Dec;6(12):1156-62. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16211084 16211084]
| + | |
| - | [[Category: Burkholderia pseudomallei]]
| + | |
| - | [[Category: Catalase]]
| + | |
| - | [[Category: Single protein]]
| + | |
| - | [[Category: Carpena, X.]]
| + | |
| - | [[Category: Deemagarn, T.]]
| + | |
| - | [[Category: Fita, I.]]
| + | |
| - | [[Category: Ivancich, A.]]
| + | |
| - | [[Category: Loewen, P C.]]
| + | |
| - | [[Category: Singh, R.]]
| + | |
| - | [[Category: Switala, J.]]
| + | |
| - | [[Category: Wiseman, B.]]
| + | |
| - | [[Category: catalase-peroxidase]]
| + | |
| - | [[Category: compound i]]
| + | |
| - | [[Category: katg]]
| + | |
| - | [[Category: oxoferryl species]]
| + | |
| - | | + | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:00:39 2008''
| + | |
