1bs7
From Proteopedia
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| - | [[Image:1bs7.gif|left|200px]] | + | [[Image:1bs7.gif|left|200px]] |
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| - | '''PEPTIDE DEFORMYLASE AS NI2+ CONTAINING FORM''' | + | {{Structure |
| + | |PDB= 1bs7 |SIZE=350|CAPTION= <scene name='initialview01'>1bs7</scene>, resolution 2.5Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> and <scene name='pdbligand=NI:NICKEL (II) ION'>NI</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Formylmethionine_deformylase Formylmethionine deformylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.1.31 3.5.1.31] | ||
| + | |GENE= DEF ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]) | ||
| + | }} | ||
| + | |||
| + | '''PEPTIDE DEFORMYLASE AS NI2+ CONTAINING FORM''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1BS7 is a [ | + | 1BS7 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BS7 OCA]. |
==Reference== | ==Reference== | ||
| - | Structure of peptide deformylase and identification of the substrate binding site., Becker A, Schlichting I, Kabsch W, Schultz S, Wagner AF, J Biol Chem. 1998 May 8;273(19):11413-6. PMID:[http:// | + | Structure of peptide deformylase and identification of the substrate binding site., Becker A, Schlichting I, Kabsch W, Schultz S, Wagner AF, J Biol Chem. 1998 May 8;273(19):11413-6. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9565550 9565550] |
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
[[Category: Formylmethionine deformylase]] | [[Category: Formylmethionine deformylase]] | ||
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[[Category: iron metalloprotease; protein synthesis]] | [[Category: iron metalloprotease; protein synthesis]] | ||
| - | ''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 10:15:04 2008'' |
Revision as of 08:15, 20 March 2008
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| , resolution 2.5Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | and | ||||||
| Gene: | DEF (Escherichia coli) | ||||||
| Activity: | Formylmethionine deformylase, with EC number 3.5.1.31 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
PEPTIDE DEFORMYLASE AS NI2+ CONTAINING FORM
Overview
Peptide deformylase is an essential metalloenzyme required for the removal of the formyl group at the N terminus of nascent polypeptide chains in eubacteria. The Escherichia coli enzyme uses Fe2+ and nearly retains its activity on substitution of the metal ion by Ni2+. We have solved the structure of the Ni2+ enzyme at 1.9-A resolution by x-ray crystallography. Each of the three monomers in the asymmetric unit contains one Ni2+ ion and, in close proximity, one molecule of polyethylene glycol. Polyethylene glycol is shown to be a competitive inhibitor with a KI value of 6 mM with respect to formylmethionine under conditions similar to those used for crystallization. We have also solved the structure of the inhibitor-free enzyme at 2.5-A resolution. The two structures are identical within the estimated errors of the models. The hydrogen bond network stabilizing the active site involves nearly all conserved amino acid residues and well defined water molecules, one of which ligates to the tetrahedrally coordinated Ni2+ ion.
About this Structure
1BS7 is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Structure of peptide deformylase and identification of the substrate binding site., Becker A, Schlichting I, Kabsch W, Schultz S, Wagner AF, J Biol Chem. 1998 May 8;273(19):11413-6. PMID:9565550
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