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==PEPTIDE DEFORMYLASE AS FE2+ CONTAINING FORM (NATIVE) IN COMPLEX WITH INHIBITOR POLYETHYLENE GLYCOL== | ==PEPTIDE DEFORMYLASE AS FE2+ CONTAINING FORM (NATIVE) IN COMPLEX WITH INHIBITOR POLYETHYLENE GLYCOL== | ||
<StructureSection load='1bsz' size='340' side='right' caption='[[1bsz]], [[Resolution|resolution]] 1.90Å' scene=''> | <StructureSection load='1bsz' size='340' side='right'caption='[[1bsz]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1bsz]] is a 3 chain structure with sequence from [ | <table><tr><td colspan='2'>[[1bsz]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BSZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BSZ FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2PE:NONAETHYLENE+GLYCOL'>2PE</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | |||
<tr id=' | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1bsz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bsz OCA], [https://pdbe.org/1bsz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bsz RCSB], [https://www.ebi.ac.uk/pdbsum/1bsz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bsz ProSAT]</span></td></tr> | ||
< | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/DEF_ECOLI DEF_ECOLI] Removes the formyl group from the N-terminal Met of newly synthesized proteins. Requires at least a dipeptide for an efficient rate of reaction. N-terminal L-methionine is a prerequisite for activity but the enzyme has broad specificity at other positions.[HAMAP-Rule:MF_00163] | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bs/1bsz_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bs/1bsz_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
| Line 35: | Line 33: | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Escherichia coli K-12]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Becker | [[Category: Becker A]] | ||
[[Category: Groche | [[Category: Groche D]] | ||
[[Category: Kabsch | [[Category: Kabsch W]] | ||
[[Category: Schlichting | [[Category: Schlichting I]] | ||
[[Category: Schultz | [[Category: Schultz S]] | ||
[[Category: Wagner | [[Category: Wagner AFV]] | ||
Latest revision as of 08:42, 9 August 2023
PEPTIDE DEFORMYLASE AS FE2+ CONTAINING FORM (NATIVE) IN COMPLEX WITH INHIBITOR POLYETHYLENE GLYCOLPEPTIDE DEFORMYLASE AS FE2+ CONTAINING FORM (NATIVE) IN COMPLEX WITH INHIBITOR POLYETHYLENE GLYCOL
Structural highlights
FunctionDEF_ECOLI Removes the formyl group from the N-terminal Met of newly synthesized proteins. Requires at least a dipeptide for an efficient rate of reaction. N-terminal L-methionine is a prerequisite for activity but the enzyme has broad specificity at other positions.[HAMAP-Rule:MF_00163] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedEubacterial proteins are synthesized with a formyl group at the N-terminus which is hydrolytically removed from the nascent chain by the mononuclear iron enzyme peptide deformylase. Catalytic efficiency strongly depends on the identity of the bound metal. We have determined by X-ray crystallography the Fe2+, Ni2+ and Zn2+ forms of the Escherichia coli enzyme and a structure in complex with the reaction product Met-Ala-Ser. The structure of the complex, with the tripeptide bound at the active site, suggests detailed models for the mechanism of substrate recognition and catalysis. Differences of the protein structures due to the identity of the bound metal are extremely small and account only for the observation that Zn2+ binds more tightly than Fe2+ or Ni2+. The striking loss of catalytic activity of the Zn2+ form could be caused by its reluctance to change between tetrahedral and five-fold metal coordination believed to occur during catalysis. N-terminal formylation and subsequent deformylation Iron center, substrate recognition and mechanism of peptide deformylase.,Becker A, Schlichting I, Kabsch W, Groche D, Schultz S, Wagner AF Nat Struct Biol. 1998 Dec;5(12):1053-8. PMID:9846875[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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