1c9e
From Proteopedia
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|PDB= 1c9e |SIZE=350|CAPTION= <scene name='initialview01'>1c9e</scene>, resolution 2.30Å | |PDB= 1c9e |SIZE=350|CAPTION= <scene name='initialview01'>1c9e</scene>, resolution 2.30Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> | + | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MP1:N-METHYLMESOPORPHYRIN+CONTAINING+COPPER'>MP1</scene> |
| - | |ACTIVITY= [http://en.wikipedia.org/wiki/Ferrochelatase Ferrochelatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.99.1.1 4.99.1.1] | + | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Ferrochelatase Ferrochelatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.99.1.1 4.99.1.1] </span> |
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1ak1|1ak1]], [[1c1h|1c1h]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1c9e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1c9e OCA], [http://www.ebi.ac.uk/pdbsum/1c9e PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1c9e RCSB]</span> | ||
}} | }} | ||
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[[Category: Hansson, M.]] | [[Category: Hansson, M.]] | ||
[[Category: Lecerof, D.]] | [[Category: Lecerof, D.]] | ||
| - | [[Category: MG]] | ||
| - | [[Category: MP1]] | ||
[[Category: bacillus subtili]] | [[Category: bacillus subtili]] | ||
[[Category: chelatase]] | [[Category: chelatase]] | ||
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[[Category: porphyrin metallation]] | [[Category: porphyrin metallation]] | ||
| - | ''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 19:17:14 2008'' |
Revision as of 16:17, 30 March 2008
| |||||||
| , resolution 2.30Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , | ||||||
| Activity: | Ferrochelatase, with EC number 4.99.1.1 | ||||||
| Related: | 1ak1, 1c1h
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF FERROCHELATASE WITH COPPER(II) N-METHYLMESOPORPHYRIN COMPLEX BOUND AT THE ACTIVE SITE
Overview
Ferrochelatase, the enzyme catalyzing metallation of protoporphyrin IX at the terminal step of heme biosynthesis, was co-crystallized with an isomer mixture of the potent inhibitor N-methylmesoporphyrin (N-MeMP). The X-ray structure revealed the active site of the enzyme, to which only one of the isomers was bound, and for the first time allowed characterization of the mode of porphyrin macrocycle distortion by ferrochelatase. Crystallization of ferrochelatase and N-MeMP in the presence of Cu(2+) leads to metallation and demethylation of N-MeMP. A mechanism of porphyrin distortion is proposed, which assumes that the enzyme holds pyrrole rings B, C and D in a vice-like grip and forces a 36 degrees tilt on ring A.
About this Structure
1C9E is a Single protein structure of sequence from Bacillus subtilis. Full crystallographic information is available from OCA.
Reference
Structural and mechanistic basis of porphyrin metallation by ferrochelatase., Lecerof D, Fodje M, Hansson A, Hansson M, Al-Karadaghi S, J Mol Biol. 2000 Mar 17;297(1):221-32. PMID:10704318
Page seeded by OCA on Sun Mar 30 19:17:14 2008
