7fe0

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'''Unreleased structure'''
 
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The entry 7fe0 is ON HOLD until Paper Publication
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==AvmM Catalyzes Macrocyclization in Alchivemycin A Biosynthesis==
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<StructureSection load='7fe0' size='340' side='right'caption='[[7fe0]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[7fe0]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptomyces_sp._NBRC_109436 Streptomyces sp. NBRC 109436]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7FE0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7FE0 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CAC:CACODYLATE+ION'>CAC</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7fe0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7fe0 OCA], [https://pdbe.org/7fe0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7fe0 RCSB], [https://www.ebi.ac.uk/pdbsum/7fe0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7fe0 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[[https://www.uniprot.org/uniprot/A0A8F7LEJ5_9ACTN A0A8F7LEJ5_9ACTN]]
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Macrocyclization is an important process that affords morphed scaffold in biosynthesis of bioactive natural products. Nature has adapted diverse biosynthetic strategies to form macrocycles. In this work, we report the identification and characterization of a small enzyme AvmM that can catalyze the construction of a 16-membered macrocyclic ring in the biosynthesis of alchivemycin A (1). We show through in vivo gene deletion, in vitro biochemical assay and isotope labelling experiments that AvmM catalyzes tandem dehydration and Michael-type addition to generate the core scaffold of 1. Mechanistic studies by crystallography, DFT calculations and MD simulations of AvmM reveal that the reactions are achieved with assistance from the special tenuazonic acid like moiety of substrate. Our results thus uncover an uncharacterized macrocyclization strategy in natural product biosynthesis.
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Authors: Zhang, B., Ge, H.M.
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AvmM catalyses macrocyclization through dehydration/Michael-type addition in alchivemycin A biosynthesis.,Zhu HJ, Zhang B, Wei W, Liu SH, Xiang L, Zhu J, Jiao RH, Igarashi Y, Bashiri G, Liang Y, Tan RX, Ge HM Nat Commun. 2022 Aug 3;13(1):4499. doi: 10.1038/s41467-022-32088-4. PMID:35922406<ref>PMID:35922406</ref>
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Description: AvmM Catalyzes Macrocyclization in Alchivemycin A Biosynthesis
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[Category: Unreleased Structures]]
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</div>
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[[Category: Zhang, B]]
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<div class="pdbe-citations 7fe0" style="background-color:#fffaf0;"></div>
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[[Category: Ge, H.M]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Streptomyces sp. NBRC 109436]]
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[[Category: Ge HM]]
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[[Category: Zhang B]]

Revision as of 07:01, 14 September 2022

AvmM Catalyzes Macrocyclization in Alchivemycin A Biosynthesis

PDB ID 7fe0

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