1jof

<table><tr><td colspan='2'>[[1jof]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Chrysonilia_crassa Chrysonilia crassa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JOF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JOF FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BME:BETA-MERCAPTOETHANOL'>BME</scene>, <scene name='pdbligand=PIN:PIPERAZINE-N,N-BIS(2-ETHANESULFONIC+ACID)'>PIN</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>

<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>

<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1muc|1muc]]</div></td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Carboxy-cis,cis-muconate_cyclase Carboxy-cis,cis-muconate cyclase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.5.1.5 5.5.1.5] </span></td></tr>

[[https://www.uniprot.org/uniprot/CMLE_NEUCR CMLE_NEUCR]] Catalyzes a syn cycloisomerization. Also possesses mle activity.

<div style="background-color:#fffaf0;">

== Publication Abstract from PubMed ==

Muconate lactonizing enzymes (MLEs) convert cis,cis-muconates to muconolactones in microbes as part of the beta-ketoadipate pathway; some also dehalogenate muconate derivatives of xenobiotic haloaromatics. There are three different MLE classes unrelated by evolution. We present the X-ray structure of a eukaryotic MLE, Neurospora crassa 3-carboxy-cis,cis-muconate lactonizing enzyme (NcCMLE) at 2.5 A resolution, with a seven-bladed beta propeller fold. It is related neither to bacterial MLEs nor to other beta propeller enzymes, but is structurally similar to the G protein beta subunit. It reveals a novel metal-independent cycloisomerase motif unlike the bacterial metal cofactor MLEs. Together, the bacterial MLEs and NcCMLE structures comprise a striking structural example of functional convergence in enzymes for 1,2-addition-elimination of carboxylic acids. NcCMLE and bacterial MLEs may enhance the reaction rate differently: the former by electrophilic catalysis and the latter by electrostatic stabilization of the enolate.

The structure of Neurospora crassa 3-carboxy-cis,cis-muconate lactonizing enzyme, a beta propeller cycloisomerase.,Kajander T, Merckel MC, Thompson A, Deacon AM, Mazur P, Kozarich JW, Goldman A Structure. 2002 Apr;10(4):483-92. PMID:11937053<ref>PMID:11937053</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

</div>

<div class="pdbe-citations 1jof" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Carboxy-cis,cis-muconate cyclase]]

[[Category: Chrysonilia crassa]]

[[Category: Deacon, A M]]

[[Category: Goldman, A]]

[[Category: Kajander, T]]

[[Category: Kozarich, J W]]

[[Category: Mazur, P]]

[[Category: Merckel, M C]]

[[Category: Thompson, A]]

[[Category: Semet-protein]]