5b68: Difference between revisions
New page: '''Unreleased structure''' The entry 5b68 is ON HOLD Authors: Joo, S., Kim, S., Kim, K.-J. Description: Crystal structure of apo amylomaltase from Corynebacterium glutamicum [[Category... |
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==Crystal structure of apo amylomaltase from Corynebacterium glutamicum== | |||
<StructureSection load='5b68' size='340' side='right'caption='[[5b68]], [[Resolution|resolution]] 1.70Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[5b68]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Corynebacterium_glutamicum Corynebacterium glutamicum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5B68 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5B68 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]] 1.7Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BTB:2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>BTB</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=5b68 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5b68 OCA], [https://pdbe.org/5b68 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5b68 RCSB], [https://www.ebi.ac.uk/pdbsum/5b68 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5b68 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q8NNA7_CORGL Q8NNA7_CORGL] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Amylomaltase is an essential enzyme in maltose utilization and maltodextrin metabolism, and it has been industrially used for the production of cyclodextrin and modification of starch. We determined the crystal structure of amylomaltase from Corynebacterium glutamicum (CgAM) at a resolution of 1.7 A. Although CgAM forms a dimer without NaCl, it exists as a monomer in physiological concentration of NaCl. CgAM is composed of N- and C-terminal domains, which can be further divided into two and four subdomains, respectively. It exhibits a unique structural feature at the functionally unknown N-domain and also shows two striking differences at the C-domain compared to other amylomaltases. These differences at extended edge of the substrate-binding site might affect substrate specificity for large cyclodextrin formation. The bis-tris methane and sulfate molecules bound at the substrate-binding site of our current structure mimic the binding of the hydroxyl groups of glucose bound at subsites -1 and -2, respectively. | |||
Crystal Structure of Amylomaltase from Corynebacterium glutamicum.,Joo S, Kim S, Seo H, Kim KJ J Agric Food Chem. 2016 Jul 20;64(28):5662-70. doi: 10.1021/acs.jafc.6b02296., Epub 2016 Jul 8. PMID:27366969<ref>PMID:27366969</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: | <div class="pdbe-citations 5b68" style="background-color:#fffaf0;"></div> | ||
[[Category: Kim | == References == | ||
[[Category: | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Corynebacterium glutamicum]] | |||
[[Category: Large Structures]] | |||
[[Category: Joo S]] | |||
[[Category: Kim K-J]] | |||
[[Category: Kim S]] | |||
Latest revision as of 19:01, 8 November 2023
Crystal structure of apo amylomaltase from Corynebacterium glutamicumCrystal structure of apo amylomaltase from Corynebacterium glutamicum
Structural highlights
FunctionPublication Abstract from PubMedAmylomaltase is an essential enzyme in maltose utilization and maltodextrin metabolism, and it has been industrially used for the production of cyclodextrin and modification of starch. We determined the crystal structure of amylomaltase from Corynebacterium glutamicum (CgAM) at a resolution of 1.7 A. Although CgAM forms a dimer without NaCl, it exists as a monomer in physiological concentration of NaCl. CgAM is composed of N- and C-terminal domains, which can be further divided into two and four subdomains, respectively. It exhibits a unique structural feature at the functionally unknown N-domain and also shows two striking differences at the C-domain compared to other amylomaltases. These differences at extended edge of the substrate-binding site might affect substrate specificity for large cyclodextrin formation. The bis-tris methane and sulfate molecules bound at the substrate-binding site of our current structure mimic the binding of the hydroxyl groups of glucose bound at subsites -1 and -2, respectively. Crystal Structure of Amylomaltase from Corynebacterium glutamicum.,Joo S, Kim S, Seo H, Kim KJ J Agric Food Chem. 2016 Jul 20;64(28):5662-70. doi: 10.1021/acs.jafc.6b02296., Epub 2016 Jul 8. PMID:27366969[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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