View source for 5mst


==Structure of the A domain of carboxylic acid reductase (CAR) from Segniliparus rugosus in complex with AMP and a co-purified carboxylic acid==
<StructureSection load='5mst' size='340' side='right'caption='[[5mst]], [[Resolution|resolution]] 1.72&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5mst]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Segniliparus_rugosus_ATCC_BAA-974 Segniliparus rugosus ATCC BAA-974]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5MST OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5MST 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]] 1.72&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FUM:FUMARIC+ACID'>FUM</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=5mst FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5mst OCA], [https://pdbe.org/5mst PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5mst RCSB], [https://www.ebi.ac.uk/pdbsum/5mst PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5mst ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CAR_SEGRC CAR_SEGRC] Catalyzes the ATP- and NADPH-dependent reduction of carboxylic acids to the corresponding aldehydes (PubMed:28719588). Catalyzes the reduction of a very wide range of carboxylic acids, including benzoic acids, heterocyclic, phenylacetic, phenylpropanoic and fatty acid substrates (PubMed:28719588).<ref>PMID:28719588</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Carboxylic acid reductase (CAR) catalyzes the ATP- and NADPH-dependent reduction of carboxylic acids to the corresponding aldehydes. The enzyme is related to the nonribosomal peptide synthetases, consisting of an adenylation domain fused via a peptidyl carrier protein (PCP) to a reductase termination domain. Crystal structures of the CAR adenylation-PCP didomain demonstrate that large-scale domain motions occur between the adenylation and thiolation states. Crystal structures of the PCP-reductase didomain reveal that phosphopantetheine binding alters the orientation of a key Asp, resulting in a productive orientation of the bound nicotinamide. This ensures that further reduction of the aldehyde product does not occur. Combining crystallography with small-angle X-ray scattering (SAXS), we propose that molecular interactions between initiation and termination domains are limited to competing PCP docking sites. This theory is supported by the fact that (R)-pantetheine can support CAR activity for mixtures of the isolated domains. Our model suggests directions for further development of CAR as a biocatalyst.

Structures of carboxylic acid reductase reveal domain dynamics underlying catalysis.,Gahloth D, Dunstan MS, Quaglia D, Klumbys E, Lockhart-Cairns MP, Hill AM, Derrington SR, Scrutton NS, Turner NJ, Leys D Nat Chem Biol. 2017 Sep;13(9):975-981. doi: 10.1038/nchembio.2434. Epub 2017 Jul , 17. PMID:28719588<ref>PMID:28719588</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5mst" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Segniliparus rugosus ATCC BAA-974]]
[[Category: Gahloth D]]
[[Category: Leys D]]