View source for 5xqj


==Crystal structure of a PL 26 exo-rhamnogalacturonan lyase from Penicillium chrysogenum complexed with unsaturated galacturonosyl rhamnose substituted with galactose==
<StructureSection load='5xqj' size='340' side='right'caption='[[5xqj]], [[Resolution|resolution]] 2.75&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5xqj]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Penicillium_chrysogenum Penicillium chrysogenum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5XQJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5XQJ 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]] 2.75&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GAD:2,6-ANHYDRO-3-DEOXY-D-ERYTHRO-HEX-2-ENONIC+ACID'>GAD</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=RAM:ALPHA-L-RHAMNOSE'>RAM</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=5xqj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5xqj OCA], [https://pdbe.org/5xqj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5xqj RCSB], [https://www.ebi.ac.uk/pdbsum/5xqj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5xqj ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/B6H7Q7_PENRW B6H7Q7_PENRW] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Exo-rhamnogalacturonan lyase from Penicillium chrysogenum 31B (PcRGLX) was recently classified as a member of polysaccharide lyase (PL) family 26 along with hypothetical proteins derived from various organisms. In this study, we determined the crystal structure of PcRGLX as the first structure of a member of this family. Based on the substrate-binding orientation and substrate specificity, PcRGLX is an exo-type PL that cleaves rhamnogalacturonan from the reducing end. Analysis of PcRGLX-complex structures with reaction products indicate that the active site possesses an L-shaped cleft that can accommodate galactosyl side chains, suggesting side-chain-bypassing activity in PcRGLX. Furthermore, we determined the residues critical for catalysis by analyzing the enzyme activities of inactive variants.

Crystal structure of exo-rhamnogalacturonan lyase from Penicillium chrysogenum as a member of polysaccharide lyase family 26.,Kunishige Y, Iwai M, Nakazawa M, Ueda M, Tada T, Nishimura S, Sakamoto T FEBS Lett. 2018 Mar 25. doi: 10.1002/1873-3468.13034. PMID:29574769<ref>PMID:29574769</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5xqj" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Penicillium chrysogenum]]
[[Category: Iwai M]]
[[Category: Kunishige Y]]
[[Category: Nishimura S]]
[[Category: Sakamoto T]]
[[Category: Tada T]]