1uuq: Difference between revisions

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-{{Seed}}
-[[Image:1uuq.png|left|200px]]
-<!--
+==Exo-mannosidase from Cellvibrio mixtus==
-The line below this paragraph, containing "STRUCTURE_1uuq", creates the "Structure Box" on the page.
+<StructureSection load='1uuq' size='340' side='right'caption='[[1uuq]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
-You may change the PDB parameter (which sets the PDB file loaded into the applet)
+== Structural highlights ==
-or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+<table><tr><td colspan='2'>[[1uuq]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Cellvibrio_mixtus Cellvibrio mixtus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UUQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UUQ FirstGlance]. <br>
-or leave the SCENE parameter empty for the default display.
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#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=SO4:SULFATE+ION'>SO4</scene></td></tr>
-{{STRUCTURE_1uuq|  PDB=1uuq  |  SCENE=  }}
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1uuq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uuq OCA], [https://pdbe.org/1uuq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1uuq RCSB], [https://www.ebi.ac.uk/pdbsum/1uuq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1uuq ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/Q6QT42_9GAMM Q6QT42_9GAMM]
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uu/1uuq_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
+  </jmolCheckbox>
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1uuq ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+The enzymatic hydrolysis of the glycosidic bond is central to numerous biological processes. Glycoside hydrolases, which catalyze these reactions, are grouped into families based on primary sequence similarities. One of the largest glycoside hydrolase families is glycoside hydrolase family 5 (GH5), which contains primarily endo-acting enzymes that hydrolyze beta-mannans and beta-glucans. Here we report the cloning, characterization, and three-dimensional structure of the Cellvibrio mixtus GH5 beta-mannosidase (CmMan5A). This enzyme releases mannose from the nonreducing end of mannooligosaccharides and polysaccharides, an activity not previously observed in this enzyme family. CmMan5A contains a single glycone (-1) and two aglycone (+1 and +2) sugar-binding subsites. The -1 subsite displays absolute specificity for mannose, whereas the +1 subsite does not accommodate galactosyl side chains but will bind weakly to glucose. The +2 subsite is able to bind to decorated mannose residues. CmMan5A displays similar activity against crystalline and amorphous mannans, a property rarely attributed to glycoside hydrolases. The 1.5 A crystal structure reveals that CmMan5A adopts a (beta/alpha)(8) barrel fold, and superimposition with GH5 endo-mannanases shows that dramatic differences in the length of three loops modify the active center accessibility and thus modulate the specificity from endo to exo. The most striking and significant difference is the extended loop between strand beta8 and helix alpha8 comprising residues 378-412. This insertion forms a "double" steric barrier, formed by two short beta-strands that function to "block" the substrate binding cleft at the edge of the -1 subsite forming the "exo" active center topology of CmMan5A.
-===EXO-MANNOSIDASE FROM CELLVIBRIO MIXTUS===
+Insights into the molecular determinants of substrate specificity in glycoside hydrolase family 5 revealed by the crystal structure and kinetics of Cellvibrio mixtus mannosidase 5A.,Dias FM, Vincent F, Pell G, Prates JA, Centeno MS, Tailford LE, Ferreira LM, Fontes CM, Davies GJ, Gilbert HJ J Biol Chem. 2004 Jun 11;279(24):25517-26. Epub 2004 Mar 10. PMID:15014076<ref>PMID:15014076</ref>
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
+<div class="pdbe-citations 1uuq" style="background-color:#fffaf0;"></div>
-<!--
+==See Also==
-The line below this paragraph, {{ABSTRACT_PUBMED_15014076}}, adds the Publication Abstract to the page
+*[[Mannosidase 3D structures|Mannosidase 3D structures]]
-(as it appears on PubMed at http://www.pubmed.gov), where 15014076 is the PubMed ID number.
+== References ==
--->
+<references/>
-{{ABSTRACT_PUBMED_15014076}}
+__TOC__
+</StructureSection>
-==About this Structure==
-UUQ is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Cellvibrio_mixtus Cellvibrio mixtus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UUQ OCA].
-==Reference==
-<ref group="xtra">PMID:15014076</ref><references group="xtra"/>
 [[Category: Cellvibrio mixtus]]
-[[Category: Centeno, M S.J.]]
+[[Category: Large Structures]]
-[[Category: Davies, G J.]]
+[[Category: Centeno MSJ]]
-[[Category: Dias, M V.F.]]
+[[Category: Davies GJ]]
-[[Category: Ferreira, L M.A.]]
+[[Category: Dias MVF]]
-[[Category: Fontes, C M.G A.]]
+[[Category: Ferreira LMA]]
-[[Category: Gilbert, H J.]]
+[[Category: Fontes CMGA]]
-[[Category: Pell, G.]]
+[[Category: Gilbert HJ]]
-[[Category: Prates, J A.M.]]
+[[Category: Pell G]]
-[[Category: Vincent, F.]]
+[[Category: Prates JAM]]
-[[Category: Family 5]]
+[[Category: Vincent F]]
-[[Category: Glycoside hydrolase]]
-[[Category: Mannan]]
-[[Category: Mannosidase]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 20:01:28 2009''