View source for 7fbo


==geranyl pyrophosphate C6-methyltransferase BezA binding with S-adenosylhomocysteine==
<StructureSection load='7fbo' size='340' side='right'caption='[[7fbo]], [[Resolution|resolution]] 2.56&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7fbo]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptomyces_sp._RI-18-2 Streptomyces sp. RI-18-2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7FBO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7FBO FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.56&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EPE:4-(2-HYDROXYETHYL)-1-PIPERAZINE+ETHANESULFONIC+ACID'>EPE</scene>, <scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7fbo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7fbo OCA], [https://pdbe.org/7fbo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7fbo RCSB], [https://www.ebi.ac.uk/pdbsum/7fbo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7fbo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A2Z5X7B9_9ACTN A0A2Z5X7B9_9ACTN] [https://www.uniprot.org/uniprot/A0A1V4D079_9ACTN A0A1V4D079_9ACTN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Prenyl pyrophosphate methyltransferases enhance the structural diversity of terpenoids. However, the molecular basis of their catalytic mechanisms is poorly understood. In this study, using multiple strategies, we characterized a geranyl pyrophosphate (GPP) C6-methyltransferase, BezA. Biochemical analysis revealed that BezA requires Mg(2+) and solely methylates GPP. The crystal structures of BezA and its complex with S-adenosyl homocysteine were solved at 2.10 and 2.56 A, respectively. Further analyses using site-directed mutagenesis, molecular docking, molecular dynamics simulations, and quantum mechanics/molecular mechanics calculations revealed the molecular basis of the methylation reaction. Importantly, the function of E170 as a catalytic base to complete the methylation reaction was established. We also succeeded in switching the substrate specificity by introducing a W210A substitution, resulting in an unprecedented farnesyl pyrophosphate C6-methyltransferase.

Structural and Molecular Basis of the Catalytic Mechanism of Geranyl Pyrophosphate C6-Methyltransferase: Creation of an Unprecedented Farnesyl Pyrophosphate C6-Methyltransferase.,Tsutsumi H, Moriwaki Y, Terada T, Shimizu K, Shin-Ya K, Katsuyama Y, Ohnishi Y Angew Chem Int Ed Engl. 2021 Oct 9. doi: 10.1002/anie.202111217. PMID:34626048<ref>PMID:34626048</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7fbo" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Streptomyces sp. RI-18-2]]
[[Category: Katsuyama Y]]
[[Category: Moriwaki Y]]
[[Category: Ohnishi Y]]
[[Category: Shimizu K]]
[[Category: Terada T]]
[[Category: Tsutsumi H]]