View source for 5zu5


==Crystal structure of a full length alginate lyase with CBM domain==
<StructureSection load='5zu5' size='340' side='right'caption='[[5zu5]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5zu5]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Vibrio_splendidus Vibrio splendidus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ZU5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5ZU5 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]] 1.6&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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=5zu5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5zu5 OCA], [https://pdbe.org/5zu5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5zu5 RCSB], [https://www.ebi.ac.uk/pdbsum/5zu5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5zu5 ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Noncatalytic carbohydrate binding modules (CBMs) have been demonstrated to play various roles with cognate catalytic domains. However, for polysaccharide lyases (PLs), the roles of CBMs remain mostly unknown. AlyB is a multidomain alginate lyase that contains CBM32 and a PL7 catalytic domain. The AlyB structure determined herein reveals a noncanonical alpha helix linker between CBM32 and the catalytic domain. More interestingly, CBM32 and the linker does not significantly enhance the catalytic activity but rather specifies that trisaccharides are predominant in the degradation products. Detailed mutagenesis, biochemical and cocrystallization analyses show "weak but important" CBM32 interactions with alginate oligosaccharides. In combination with molecular modeling, we propose that the CBM32 domain serves as a "pivot point" during the trisaccharide release process. Collectively, this work demonstrates a novel role of CBMs in the activity of the appended PL domain and provides a new avenue for the well-defined generation of alginate oligosaccharides by taking advantage of associated CBMs.

Structural and biochemical characterization of a multidomain alginate lyase reveals a novel role of CBM32 in CAZymes.,Lyu Q, Zhang K, Zhu Q, Li Z, Liu Y, Fitzek E, Yohe T, Zhao L, Li W, Liu T, Yin Y, Liu W Biochim Biophys Acta. 2018 Jun 1;1862(9):1862-1869. doi:, 10.1016/j.bbagen.2018.05.024. PMID:29864445<ref>PMID:29864445</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5zu5" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Vibrio splendidus]]
[[Category: Li Z]]
[[Category: Liu W]]
[[Category: Lyu Q]]