1hfw: Difference between revisions

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 <StructureSection load='1hfw' size='340' side='right'caption='[[1hfw]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1hfw]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Erwinia_chrysanthemi Erwinia chrysanthemi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HFW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1HFW FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1hfw]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Dickeya_chrysanthemi Dickeya chrysanthemi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HFW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HFW FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GLU:GLUTAMIC+ACID'>GLU</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]] 1.8&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1hfj|1hfj]], [[1hfk|1hfk]], [[1hg0|1hg0]], [[1hg1|1hg1]]</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GLU:GLUTAMIC+ACID'>GLU</scene></td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Asparaginase Asparaginase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.1.1 3.5.1.1] </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=1hfw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hfw OCA], [https://pdbe.org/1hfw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hfw RCSB], [https://www.ebi.ac.uk/pdbsum/1hfw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hfw 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=1hfw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hfw OCA], [http://pdbe.org/1hfw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1hfw RCSB], [http://www.ebi.ac.uk/pdbsum/1hfw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1hfw ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/ASPG_DICCH ASPG_DICCH]
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
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 </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=1hfw ConSurf].
 <div style="clear:both"></div>
-<div style="background-color:#fffaf0;">
-== Publication Abstract from PubMed ==
-Bacterial L-asparaginases, enzymes that catalyze the hydrolysis of L-asparagine to aspartic acid, have been used for over 30 years as therapeutic agents in the treatment of acute childhood lymphoblastic leukemia. Other substrates of asparaginases include L-glutamine, D-asparagine, and succinic acid monoamide. In this report, we present high-resolution crystal structures of the complexes of Erwinia chrysanthemi L-asparaginase (ErA) with the products of such reactions that also can serve as substrates, namely L-glutamic acid (L-Glu), D-aspartic acid (D-Asp), and succinic acid (Suc). Comparison of the four independent active sites within each complex indicates unique and specific binding of the ligand molecules; the mode of binding is also similar between complexes. The lack of the alpha-NH3(+) group in Suc, compared to L-Asp, does not affect the binding mode. The side chain of L-Glu, larger than that of L-Asp, causes several structural distortions in the ErA active side. The active site flexible loop (residues 15-33) does not exhibit stable conformation, resulting in suboptimal orientation of the nucleophile, Thr15. Additionally, the delta-COO(-) plane of L-Glu is approximately perpendicular to the plane of gamma-COO(-) in L-Asp bound to the asparaginase active site. Binding of D-Asp to the ErA active site is very distinctive compared to the other ligands, suggesting that the low activity of ErA against D-Asp could be mainly attributed to the low k(cat) value. A comparison of the amino acid sequence and the crystal structure of ErA with those of other bacterial L-asparaginases shows that the presence of two active-site residues, Glu63(ErA) and Ser254(ErA), may correlate with significant glutaminase activity, while their substitution by Gln and Asn, respectively, may lead to minimal L-glutaminase activity.
-Structural basis for the activity and substrate specificity of Erwinia chrysanthemi L-asparaginase.,Aghaiypour K, Wlodawer A, Lubkowski J Biochemistry. 2001 May 15;40(19):5655-64. PMID:11341830<ref>PMID:11341830</ref>
-From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-</div>
-<div class="pdbe-citations 1hfw" style="background-color:#fffaf0;"></div>
 ==See Also==
 *[[Asparaginase 3D structures|Asparaginase 3D structures]]
-== References ==
-<references/>
 __TOC__
 </StructureSection>
-[[Category: Asparaginase]]
+[[Category: Dickeya chrysanthemi]]
-[[Category: Erwinia chrysanthemi]]
 [[Category: Large Structures]]
-[[Category: Kolyani, K A]]
+[[Category: Kolyani KA]]
-[[Category: Lubkowski, J]]
+[[Category: Lubkowski J]]
-[[Category: Wlodawer, A]]
+[[Category: Wlodawer A]]
-[[Category: Complex]]
-[[Category: D-aspartate]]
-[[Category: Hydrolase]]