1e8g: Difference between revisions
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<StructureSection load='1e8g' size='340' side='right'caption='[[1e8g]], [[Resolution|resolution]] 2.10Å' scene=''> | <StructureSection load='1e8g' size='340' side='right'caption='[[1e8g]], [[Resolution|resolution]] 2.10Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1e8g]] is a 2 chain structure with sequence from [ | <table><tr><td colspan='2'>[[1e8g]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_10495 Atcc 10495]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E8G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E8G FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FCR:ALPHA,ALPHA,ALPHA-TRIFLUORO-P-CRESOL'>FCR</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FCR:ALPHA,ALPHA,ALPHA-TRIFLUORO-P-CRESOL'>FCR</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1e8f|1e8f]], [[1e8h|1e8h]], [[1ahu|1ahu]], [[1ahv|1ahv]], [[1ahz|1ahz]], [[1dzn|1dzn]], [[1e0y|1e0y]], [[1qlt|1qlt]], [[1qlu|1qlu]], [[1vao|1vao]], [[2vao|2vao]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1e8f|1e8f]], [[1e8h|1e8h]], [[1ahu|1ahu]], [[1ahv|1ahv]], [[1ahz|1ahz]], [[1dzn|1dzn]], [[1e0y|1e0y]], [[1qlt|1qlt]], [[1qlu|1qlu]], [[1vao|1vao]], [[2vao|2vao]]</div></td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Vanillyl-alcohol_oxidase Vanillyl-alcohol oxidase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.3.38 1.1.3.38] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1e8g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e8g OCA], [https://pdbe.org/1e8g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1e8g RCSB], [https://www.ebi.ac.uk/pdbsum/1e8g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1e8g ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/VAOX_PENSI VAOX_PENSI]] Catalyzes the conversion of vanillin alcohol to vanillin, and also the conversion of a wide range of phenolic compounds bearing side chains of variable size at the para position of the aromatic ring. Crucial for the degradation of the secondary metabolites derived from the degradation of the lignin. Catalyzes besides the oxidation of 4-hydroxybenzyl alcohols, the oxidative deamination of 4-hydroxybenzylamines, the oxidative demethylation of 4-(methoxy-methyl)phenols and the oxidative hydration of 4-allylphenols. Most active with 4-allylphenols. | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Revision as of 08:45, 28 April 2021
STRUCTURE OF THE H61T DOUBLE MUTANT OF VANILLYL-ALCOHOL OXIDASE IN COMPLEX WITH FLUORO-CRESOLSTRUCTURE OF THE H61T DOUBLE MUTANT OF VANILLYL-ALCOHOL OXIDASE IN COMPLEX WITH FLUORO-CRESOL
Structural highlights
Function[VAOX_PENSI] Catalyzes the conversion of vanillin alcohol to vanillin, and also the conversion of a wide range of phenolic compounds bearing side chains of variable size at the para position of the aromatic ring. Crucial for the degradation of the secondary metabolites derived from the degradation of the lignin. Catalyzes besides the oxidation of 4-hydroxybenzyl alcohols, the oxidative deamination of 4-hydroxybenzylamines, the oxidative demethylation of 4-(methoxy-methyl)phenols and the oxidative hydration of 4-allylphenols. Most active with 4-allylphenols. 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 PubMedVanillyl-alcohol oxidase (VAO) is member of a newly recognized flavoprotein family of structurally related oxidoreductases. The enzyme contains a covalently linked FAD cofactor. To study the mechanism of flavinylation we have created a design point mutation (His-61 --> Thr). In the mutant enzyme the covalent His-C8alpha-flavin linkage is not formed, while the enzyme is still able to bind FAD and perform catalysis. The H61T mutant displays a similar affinity for FAD and ADP (K(d) = 1.8 and 2.1 microm, respectively) but does not interact with FMN. H61T is about 10-fold less active with 4-(methoxymethyl)phenol) (k(cat) = 0.24 s(-)(1), K(m) = 40 microm) than the wild-type enzyme. The crystal structures of both the holo and apo form of H61T are highly similar to the structure of wild-type VAO, indicating that binding of FAD to the apoprotein does not require major structural rearrangements. These results show that covalent flavinylation is an autocatalytical process in which His-61 plays a crucial role by activating His-422. Furthermore, our studies clearly demonstrate that in VAO, the FAD binds via a typical lock-and-key approach to a preorganized binding site. Structural analysis of flavinylation in vanillyl-alcohol oxidase.,Fraaije MW, van Den Heuvel RH, van Berkel WJ, Mattevi A J Biol Chem. 2000 Dec 8;275(49):38654-8. PMID:10984479[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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