1gt7: Difference between revisions
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==L-rhamnulose-1-phosphate aldolase from Escherichia coli== | ==L-rhamnulose-1-phosphate aldolase from Escherichia coli== | ||
<StructureSection load='1gt7' size='340' side='right' caption='[[1gt7]], [[Resolution|resolution]] 2.70Å' scene=''> | <StructureSection load='1gt7' size='340' side='right'caption='[[1gt7]], [[Resolution|resolution]] 2.70Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1gt7]] is a 20 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GT7 OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[1gt7]] is a 20 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GT7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GT7 FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.7Å</td></tr> | ||
<tr id=' | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PGH:PHOSPHOGLYCOLOHYDROXAMIC+ACID'>PGH</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1gt7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gt7 OCA], [https://pdbe.org/1gt7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gt7 RCSB], [https://www.ebi.ac.uk/pdbsum/1gt7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gt7 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/RHAD_ECOLI RHAD_ECOLI] Catalyzes the reversible cleavage of L-rhamnulose-1-phosphate to dihydroxyacetone phosphate (DHAP) and L-lactaldehyde.[HAMAP-Rule:MF_00770] | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gt/1gt7_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gt/1gt7_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
| Line 31: | Line 31: | ||
==See Also== | ==See Also== | ||
*[[Aldolase|Aldolase]] | *[[Aldolase 3D structures|Aldolase 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Escherichia coli]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Kroemer M]] | ||
[[Category: | [[Category: Schulz GE]] | ||
Latest revision as of 11:50, 9 May 2024
L-rhamnulose-1-phosphate aldolase from Escherichia coliL-rhamnulose-1-phosphate aldolase from Escherichia coli
Structural highlights
FunctionRHAD_ECOLI Catalyzes the reversible cleavage of L-rhamnulose-1-phosphate to dihydroxyacetone phosphate (DHAP) and L-lactaldehyde.[HAMAP-Rule:MF_00770] 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 PubMedThe enzyme L-rhamnulose-1-phosphate aldolase catalyzes the reversible cleavage of L-rhamnulose-1-phosphate to dihydroxyacetone phosphate and L-lactaldehyde. It is a homotetramer with an M(r) of 30 000 per subunit and crystallized in space group P3(2)21. The enzyme shows a low sequence identity of 18% with the structurally known L-fuculose-1-phosphate aldolase that splits a stereoisomer in a similar reaction. Structure analysis was initiated with a single heavy-atom derivative measured to 6 A resolution. The resulting poor electron density, a self-rotation function and the working hypothesis that both enzymes are C(4) symmetric with envelopes that resemble one another allowed the location of the 20 protomers of the asymmetric unit. The crystal-packing unit was a D(4)-symmetric propeller consisting of five D(4)-symmetric octamers around an internal crystallographic twofold axis. Presumably, the propellers associate laterally in layers, which in turn pile up along the 3(2) axis to form the crystal. The non-crystallographic symmetry was used to extend the phases to the 2.7 A resolution limit and to establish a refined atomic model of the enzyme. The structure showed that the two enzymes are indeed homologous and that they possess chemically similar active centres. The structure of L-rhamnulose-1-phosphate aldolase (class II) solved by low-resolution SIR phasing and 20-fold NCS averaging.,Kroemer M, Schulz GE Acta Crystallogr D Biol Crystallogr. 2002 May;58(Pt 5):824-32. Epub 2002, Apr 26. PMID:11976494[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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