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| | ==INDOLE-3-GLYCEROLPHOSPHATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS IN A SECOND ORTHORHOMBIC CRYSTAL FORM== | | ==INDOLE-3-GLYCEROLPHOSPHATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS IN A SECOND ORTHORHOMBIC CRYSTAL FORM== |
| - | <StructureSection load='1jul' size='340' side='right' caption='[[1jul]], [[Resolution|resolution]] 2.00Å' scene=''> | + | <StructureSection load='1jul' size='340' side='right'caption='[[1jul]], [[Resolution|resolution]] 2.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1jul]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_35091 Atcc 35091]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JUL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1JUL FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1jul]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharolobus_solfataricus Saccharolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JUL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JUL FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</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]] 2Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TRPC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Indole-3-glycerol-phosphate_synthase Indole-3-glycerol-phosphate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.1.48 4.1.1.48] </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=1jul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jul OCA], [https://pdbe.org/1jul PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jul RCSB], [https://www.ebi.ac.uk/pdbsum/1jul PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jul ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jul OCA], [http://pdbe.org/1jul PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1jul RCSB], [http://www.ebi.ac.uk/pdbsum/1jul PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1jul ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/TRPC_SACS2 TRPC_SACS2] |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | </div> | | </div> |
| | <div class="pdbe-citations 1jul" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 1jul" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[IGPS 3D structures|IGPS 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 35091]] | + | [[Category: Large Structures]] |
| - | [[Category: Indole-3-glycerol-phosphate synthase]] | + | [[Category: Saccharolobus solfataricus]] |
| - | [[Category: Darimont, B]] | + | [[Category: Darimont B]] |
| - | [[Category: Hennig, M]] | + | [[Category: Hennig M]] |
| - | [[Category: Jansonius, J N]] | + | [[Category: Jansonius JN]] |
| - | [[Category: Kirschner, K]] | + | [[Category: Kirschner K]] |
| - | [[Category: Knoechel, T R]] | + | [[Category: Knoechel TR]] |
| - | [[Category: Merz, A]] | + | [[Category: Merz A]] |
| - | [[Category: Lyase]]
| + | |
| - | [[Category: Thermophile]]
| + | |
| - | [[Category: Tim-barrel]]
| + | |
| - | [[Category: Tryptophan biosynthesis]]
| + | |
| Structural highlights
Function
TRPC_SACS2
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
Indole-3-glycerol phosphate synthase from the hyperthermophilic archaeon Sulfolobus solfataricus is a monomeric enzyme with the common (beta/alpha)8-fold. Recently, its three-dimensional structure was solved in an orthorhombic crystal form, grown by using 1.3 M ammonium sulfate as precipitating agent. Here we describe the X-ray structure analysis of two new crystal forms of this enzyme that were obtained at medium and low ionic strength, respectively. Hexagonal crystals with space group P3(1)21 and cell dimensions a = 62.4 A, b = 62.4 A, c = 122.9 A, gamma = 120 degrees grew in 0.1 M Mes buffer at pH 6.0 with 30% polyethylene glycol monomethylether as precipitant and 0.2 M ammonium sulfate as co-precipitant. A second crystal form with space group P2(1)2(1)2(1) and cell constants a = 62.6 A, b = 74.0 A, c = 74.2 A was obtained using polyethylene glycol and ethylene glycol as precipitants in 0.1 M Mes buffer at pH 6.5. Both structures were solved by molecular replacement and refined at 2.5 A and 2.0 A resolution, respectively. Although the global folds are almost identical, alternative conformations are observed in flexible loop regions, mostly stabilized by crystal contacts. In none of the three crystal forms is the so-called phosphate binding site empty, suggesting that this position has high affinity for anions with tetrahedrally arranged oxygen atoms. Differences in ionic strength of the crystallization buffer have only minor effects on number and specificity of intramolecular salt bridges. The crystal packing, on the other hand, seems to be influenced by the ionic strength of the solvent, since the number of intermolecular salt bridges in the low ionic strength crystal forms is significantly higher.
The crystal structure of indole-3-glycerol phosphate synthase from the hyperthermophilic archaeon Sulfolobus solfataricus in three different crystal forms: effects of ionic strength.,Knochel TR, Hennig M, Merz A, Darimont B, Kirschner K, Jansonius JN J Mol Biol. 1996 Oct 4;262(4):502-15. PMID:8893859[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Knochel TR, Hennig M, Merz A, Darimont B, Kirschner K, Jansonius JN. The crystal structure of indole-3-glycerol phosphate synthase from the hyperthermophilic archaeon Sulfolobus solfataricus in three different crystal forms: effects of ionic strength. J Mol Biol. 1996 Oct 4;262(4):502-15. PMID:8893859 doi:10.1006/jmbi.1996.0531
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