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| | ==Structure of aspartate semialdehyde dehydrogenase (ASADH) from Streptococcus pneumoniae== | | ==Structure of aspartate semialdehyde dehydrogenase (ASADH) from Streptococcus pneumoniae== |
| - | <StructureSection load='2gyy' size='340' side='right' caption='[[2gyy]], [[Resolution|resolution]] 2.10Å' scene=''> | + | <StructureSection load='2gyy' size='340' side='right'caption='[[2gyy]], [[Resolution|resolution]] 2.10Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2gyy]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/"diplococcus_pneumoniae"_(klein_1884)_weichselbaum_1886 "diplococcus pneumoniae" (klein 1884) weichselbaum 1886]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GYY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2GYY FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2gyy]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_pneumoniae Streptococcus pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GYY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2GYY FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1mc4|1mc4]], [[1nwc|1nwc]], [[1brm|1brm]]</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]] 2.1Å</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Aspartate-semialdehyde_dehydrogenase Aspartate-semialdehyde dehydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.2.1.11 1.2.1.11] </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=2gyy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gyy OCA], [https://pdbe.org/2gyy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2gyy RCSB], [https://www.ebi.ac.uk/pdbsum/2gyy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2gyy 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=2gyy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gyy OCA], [http://pdbe.org/2gyy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2gyy RCSB], [http://www.ebi.ac.uk/pdbsum/2gyy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2gyy ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/Q8DQ00_STRR6 Q8DQ00_STRR6]] Catalyzes the NADPH-dependent formation of L-aspartate-semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl-4-phosphate (By similarity).[HAMAP-Rule:MF_02121] | + | [https://www.uniprot.org/uniprot/A0A0H2UPS5_STRPN A0A0H2UPS5_STRPN] Catalyzes the NADPH-dependent formation of L-aspartate-semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl-4-phosphate.[HAMAP-Rule:MF_02121] |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | ==See Also== | | ==See Also== |
| - | *[[Aspartate-semialdehyde dehydrogenase|Aspartate-semialdehyde dehydrogenase]] | + | *[[Aspartate-semialdehyde dehydrogenase 3D structures|Aspartate-semialdehyde dehydrogenase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Aspartate-semialdehyde dehydrogenase]] | + | [[Category: Large Structures]] |
| - | [[Category: Coq, J Le]] | + | [[Category: Streptococcus pneumoniae]] |
| - | [[Category: Faehnle, C R]] | + | [[Category: Faehnle CR]] |
| - | [[Category: Liu, X]] | + | [[Category: Le Coq J]] |
| - | [[Category: Viola, R E]] | + | [[Category: Liu X]] |
| - | [[Category: Dehydrogenase]] | + | [[Category: Viola RE]] |
| - | [[Category: Oxidoreductase]]
| + | |
| Structural highlights
Function
A0A0H2UPS5_STRPN Catalyzes the NADPH-dependent formation of L-aspartate-semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl-4-phosphate.[HAMAP-Rule:MF_02121]
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
Aspartate-beta-semialdehyde dehydrogenase (ASADH) catalyzes a critical branch point transformation in amino acid bio-synthesis. The products of the aspartate pathway are essential in microorganisms, and this entire pathway is absent in mammals, making this enzyme an attractive target for antibiotic development. The first structure of an ASADH from a Gram-positive bacterium, Streptococcus pneumoniae, has now been determined. The overall structure of the apoenzyme has a similar fold to those of the Gram-negative and archaeal ASADHs but contains some interesting structural variations that can be exploited for inhibitor design. Binding of the coenzyme NADP, as well as a truncated nucleotide analogue, into an alternative conformation from that observed in Gram-negative ASADHs causes an enzyme domain closure that precedes catalysis. The covalent acyl-enzyme intermediate was trapped by soaking the substrate into crystals of the coenzyme complex, and the structure of this elusive intermediate provides detailed insights into the catalytic mechanism.
Examination of key intermediates in the catalytic cycle of aspartate-beta-semialdehyde dehydrogenase from a gram-positive infectious bacteria.,Faehnle CR, Le Coq J, Liu X, Viola RE J Biol Chem. 2006 Oct 13;281(41):31031-40. Epub 2006 Aug 8. PMID:16895909[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Faehnle CR, Le Coq J, Liu X, Viola RE. Examination of key intermediates in the catalytic cycle of aspartate-beta-semialdehyde dehydrogenase from a gram-positive infectious bacteria. J Biol Chem. 2006 Oct 13;281(41):31031-40. Epub 2006 Aug 8. PMID:16895909 doi:10.1074/jbc.M605926200
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