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1yxc

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Structure of E. coli dihydrodipicolinate synthase to 1.9 A

Structural highlights

1yxc is a 2 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.9Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

DAPA_ECOLI Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).^[1] ^[2]

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

Dihydrodipicolinate synthase (DHDPS) mediates the key first reaction common to the biosynthesis of (S)-lysine and meso-diaminopimelate. The activity of DHDPS is allosterically regulated by the feedback inhibitor (S)-lysine. The crystal structure of DHDPS from Escherichia coli has previously been published, but to only a resolution of 2.5 A, and the structure of the lysine-bound adduct was known to only 2.94 A resolution. Here, the crystal structures of native and (S)-lysine-bound dihydrodipicolinate synthase from E. coli are presented to 1.9 and 2.0 A, respectively, resolutions that allow, in particular, more accurate definition of the protein structure. The general architecture of the active site is found to be consistent with previously determined structures, but with some important differences. Arg138, which is situated at the entrance of the active site and is thought to be involved in substrate binding, has an altered conformation and is connected via a water molecule to Tyr133 of the active-site catalytic triad. This suggests a hitherto unknown function for Arg138 in the DHDPS mechanism. Additionally, a re-evaluation of the dimer-dimer interface reveals a more extensive network of interactions than first thought. Of particular interest is the higher resolution structure of DHDPS with (S)-lysine bound at the allosteric site, which is remote to the active site, although connected to it by a chain of conserved water molecules. (S)-Lysine has a slightly altered conformation from that originally determined and does not appear to alter the DHDPS structure as others have reported.

The crystal structures of native and (S)-lysine-bound dihydrodipicolinate synthase from Escherichia coli with improved resolution show new features of biological significance.,Dobson RC, Griffin MD, Jameson GB, Gerrard JA Acta Crystallogr D Biol Crystallogr. 2005 Aug;61(Pt 8):1116-24. Epub 2005, Jul 20. PMID:16041077^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Devenish SR, Blunt JW, Gerrard JA. NMR studies uncover alternate substrates for dihydrodipicolinate synthase and suggest that dihydrodipicolinate reductase is also a dehydratase. J Med Chem. 2010 Jun 24;53(12):4808-12. doi: 10.1021/jm100349s. PMID:20503968 doi:10.1021/jm100349s
↑ Blickling S, Renner C, Laber B, Pohlenz HD, Holak TA, Huber R. Reaction mechanism of Escherichia coli dihydrodipicolinate synthase investigated by X-ray crystallography and NMR spectroscopy. Biochemistry. 1997 Jan 7;36(1):24-33. PMID:8993314 doi:10.1021/bi962272d
↑ Dobson RC, Griffin MD, Jameson GB, Gerrard JA. The crystal structures of native and (S)-lysine-bound dihydrodipicolinate synthase from Escherichia coli with improved resolution show new features of biological significance. Acta Crystallogr D Biol Crystallogr. 2005 Aug;61(Pt 8):1116-24. Epub 2005, Jul 20. PMID:16041077 doi:10.1107/S0907444905016318

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1yxc"

@@ Line 1: / Line 1: @@
 ==Structure of E. coli dihydrodipicolinate synthase to 1.9 A==
-<StructureSection load='1yxc' size='340' side='right' caption='[[1yxc]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
+<StructureSection load='1yxc' size='340' side='right'caption='[[1yxc]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1yxc]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YXC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1YXC FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1yxc]] is a 2 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=1YXC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1YXC FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene><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]] 1.9&#8491;</td></tr>
-<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1dhp|1dhp]], [[1s5t|1s5t]], [[1s5v|1s5v]], [[1s5w|1s5w]], [[1yxd|1yxd]]</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr>
-<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dapA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</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=1yxc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1yxc OCA], [https://pdbe.org/1yxc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1yxc RCSB], [https://www.ebi.ac.uk/pdbsum/1yxc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1yxc ProSAT]</span></td></tr>
-<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Dihydrodipicolinate_synthase Dihydrodipicolinate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.52 4.2.1.52] </span></td></tr>
+</table>
-<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1yxc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1yxc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1yxc RCSB], [http://www.ebi.ac.uk/pdbsum/1yxc PDBsum]</span></td></tr>
+== Function ==
-<table>
+[https://www.uniprot.org/uniprot/DAPA_ECOLI DAPA_ECOLI] Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).<ref>PMID:20503968</ref> <ref>PMID:8993314</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/yx/1yxc_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/yx/1yxc_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
-</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1yxc ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 27: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1yxc" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 34: / Line 36: @@
 __TOC__
 </StructureSection>
-[[Category: Dihydrodipicolinate synthase]]
 [[Category: Escherichia coli]]
-[[Category: Dobson, R C.J.]]
+[[Category: Large Structures]]
-[[Category: Gerrard, J A.]]
+[[Category: Dobson RCJ]]
-[[Category: Griffin, M D.W.]]
+[[Category: Gerrard JA]]
-[[Category: Jameson, G B.]]
+[[Category: Griffin MDW]]
-[[Category: Dihydrodipicolinate synthase]]
+[[Category: Jameson GB]]
-[[Category: Lyase]]

1yxc

From Proteopedia

Current revision

Structure of E. coli dihydrodipicolinate synthase to 1.9 A

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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