5ojc: Difference between revisions
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<StructureSection load='5ojc' size='340' side='right' caption='[[5ojc]], [[Resolution|resolution]] 1.25Å' scene=''> | <StructureSection load='5ojc' size='340' side='right' caption='[[5ojc]], [[Resolution|resolution]] 1.25Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[5ojc]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5OJC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5OJC FirstGlance]. <br> | <table><tr><td colspan='2'>[[5ojc]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Phycd Phycd]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5OJC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5OJC FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=IMD:IMIDAZOLE'>IMD</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=IMD:IMIDAZOLE'>IMD</scene></td></tr> | ||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MHS:N1-METHYLATED+HISTIDINE'>MHS</scene></td></tr> | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MHS:N1-METHYLATED+HISTIDINE'>MHS</scene></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9755 PHYCD])</td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ojc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ojc OCA], [http://pdbe.org/5ojc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ojc RCSB], [http://www.ebi.ac.uk/pdbsum/5ojc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ojc ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ojc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ojc OCA], [http://pdbe.org/5ojc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ojc RCSB], [http://www.ebi.ac.uk/pdbsum/5ojc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ojc ProSAT]</span></td></tr> | ||
</table> | </table> | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Phycd]] | |||
[[Category: Green, A]] | [[Category: Green, A]] | ||
[[Category: Hayashi, T]] | [[Category: Hayashi, T]] | ||
Revision as of 09:41, 7 February 2018
Structure of MbQ2.1 NMHStructure of MbQ2.1 NMH
Structural highlights
Function[MYG_PHYCD] Serves as a reserve supply of oxygen and facilitates the movement of oxygen within muscles. Publication Abstract from PubMedExpanding the range of genetically encoded metal coordination environments accessible within tunable protein scaffolds presents excellent opportunities for the creation of metalloenzymes with augmented properties and novel activities. Here, we demonstrate that installation of a noncanonical Ndelta-methyl histidine (NMH) as the proximal heme ligand in the oxygen binding protein myoglobin (Mb) leads to substantial increases in heme redox potential and promiscuous peroxidase activity. Structural characterization of this catalytically modified myoglobin variant (Mb NMH) revealed significant changes in the proximal pocket, including alterations to hydrogen-bonding interactions involving the prosthetic porphyrin cofactor. Further optimization of Mb NMH via a combination of rational modification and several rounds of laboratory evolution afforded efficient peroxidase biocatalysts within a globin fold, with activities comparable to those displayed by nature's peroxidases. A Noncanonical Proximal Heme Ligand Affords an Efficient Peroxidase in a Globin Fold.,Pott M, Hayashi T, Mori T, Mittl PRE, Green AP, Hilvert D J Am Chem Soc. 2018 Jan 19. doi: 10.1021/jacs.7b12621. PMID:29309143[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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