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| | <StructureSection load='1un8' size='340' side='right'caption='[[1un8]], [[Resolution|resolution]] 2.50Å' scene=''> | | <StructureSection load='1un8' size='340' side='right'caption='[[1un8]], [[Resolution|resolution]] 2.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1un8]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacterium_freundii"_braak_1928 "bacterium freundii" braak 1928]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UN8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UN8 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1un8]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Citrobacter_freundii Citrobacter freundii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UN8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UN8 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MYY:(2R)-3-(PHOSPHONOOXY)-2-(TETRADECANOYLOXY)PROPYL+PALMITATE'>MYY</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1un9|1un9]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MYY:(2R)-3-(PHOSPHONOOXY)-2-(TETRADECANOYLOXY)PROPYL+PALMITATE'>MYY</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Glycerone_kinase Glycerone kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.29 2.7.1.29] </span></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=1un8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1un8 OCA], [https://pdbe.org/1un8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1un8 RCSB], [https://www.ebi.ac.uk/pdbsum/1un8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1un8 ProSAT]</span></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=1un8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1un8 OCA], [https://pdbe.org/1un8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1un8 RCSB], [https://www.ebi.ac.uk/pdbsum/1un8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1un8 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/DHAK_CITFR DHAK_CITFR]] Catalyzes the phosphorylation of dihydroxyacetone.
| + | [https://www.uniprot.org/uniprot/DHAK_CITFR DHAK_CITFR] Catalyzes the phosphorylation of dihydroxyacetone. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Bacterium freundii braak 1928]] | + | [[Category: Citrobacter freundii]] |
| - | [[Category: Glycerone kinase]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Arnold, I]] | + | [[Category: Arnold I]] |
| - | [[Category: Baumann, U]] | + | [[Category: Baumann U]] |
| - | [[Category: Erni, B]] | + | [[Category: Erni B]] |
| - | [[Category: Garcia-Alles, L F]] | + | [[Category: Garcia-Alles LF]] |
| - | [[Category: Siebold, C]] | + | [[Category: Siebold C]] |
| - | [[Category: Transferase]]
| + | |
| Structural highlights
Function
DHAK_CITFR Catalyzes the phosphorylation of dihydroxyacetone.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Dihydroxyacetone kinases are a sequence-conserved family of enzymes, which utilize two different phosphoryldonors, ATP in animals, plants and some bacteria, and a multiphosphoprotein of the phosphoenolpyruvate carbohydrate phosphotransferase system in bacteria. Here we report the 2.5-A crystal structure of the homodimeric Citrobacter freundii dihydroxyacetone kinase complex with an ATP analogue and dihydroxyacetone. The N-terminal domain consists of two alpha/beta-folds with a molecule of dihydroxyacetone covalently bound in hemiaminal linkage to the N epsilon 2 of His-220. The C-terminal domain consists of a regular eight-helix alpha-barrel. The eight helices form a deep pocket, which includes a tightly bound phospholipid. Only the lipid headgroup protrudes from the surface. The nucleotide is bound on the top of the barrel across from the entrance to the lipid pocket. The phosphate groups are coordinated by two Mg2+ ions to gamma-carboxyl groups of aspartyl residues. The ATP binding site does not contain positively charged or aromatic groups. Paralogues of dihydroxyacetone kinase also occur in association with transcription regulators and proteins of unknown function pointing to biological roles beyond triose metabolism.
Crystal structure of the Citrobacter freundii dihydroxyacetone kinase reveals an eight-stranded alpha-helical barrel ATP-binding domain.,Siebold C, Arnold I, Garcia-Alles LF, Baumann U, Erni B J Biol Chem. 2003 Nov 28;278(48):48236-44. Epub 2003 Sep 9. PMID:12966101[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Siebold C, Arnold I, Garcia-Alles LF, Baumann U, Erni B. Crystal structure of the Citrobacter freundii dihydroxyacetone kinase reveals an eight-stranded alpha-helical barrel ATP-binding domain. J Biol Chem. 2003 Nov 28;278(48):48236-44. Epub 2003 Sep 9. PMID:12966101 doi:http://dx.doi.org/10.1074/jbc.M305942200
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