3daa: Difference between revisions

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-{{Seed}}
-[[Image:3daa.png|left|200px]]
-<!--
+==CRYSTALLOGRAPHIC STRUCTURE OF D-AMINO ACID AMINOTRANSFERASE INACTIVATED BY PYRIDOXYL-D-ALANINE==
-The line below this paragraph, containing "STRUCTURE_3daa", creates the "Structure Box" on the page.
+<StructureSection load='3daa' size='340' side='right'caption='[[3daa]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
-You may change the PDB parameter (which sets the PDB file loaded into the applet)
+== Structural highlights ==
-or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+<table><tr><td colspan='2'>[[3daa]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_sp._YM-1 Bacillus sp. YM-1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DAA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DAA FirstGlance]. <br>
-or leave the SCENE parameter empty for the default display.
+</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 id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PDD:N-(5-PHOSPHOPYRIDOXYL)-D-ALANINE'>PDD</scene></td></tr>
-{{STRUCTURE_3daa|  PDB=3daa  |  SCENE=  }}
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3daa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3daa OCA], [https://pdbe.org/3daa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3daa RCSB], [https://www.ebi.ac.uk/pdbsum/3daa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3daa ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/DAAA_BACYM DAAA_BACYM] Acts on the D-isomers of alanine, leucine, aspartate, glutamate, aminobutyrate, norvaline and asparagine. The enzyme transfers an amino group from a substrate D-amino acid to the pyridoxal phosphate cofactor to form pyridoxamine and an alpha-keto acid in the first half-reaction. The second-half reaction is the reverse of the first, transferring the amino group from the pyridoxamine to a second alpha-keto acid to form the product D-amino acid via a ping-pong mechanism. This is an important process in the formation of D-alanine and D-glutamate, which are essential bacterial cell wall components.<ref>PMID:2914916</ref> <ref>PMID:9538014</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/da/3daa_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/main_output.php?pdb_ID=3daa ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+The three-dimensional structures of two forms of the D-amino acid aminotransferase (D-aAT) from Bacillus sp. YM-1 have been determined crystallographically: the pyridoxal phosphate (PLP) form and a complex with the reduced analogue of the external aldimine, N-(5'-phosphopyridoxyl)-d-alanine (PPDA). Together with the previously reported pyridoxamine phosphate form of the enzyme [Sugio et al. (1995) Biochemistry 34, 9661], these structures allow us to describe the pathway of the enzymatic reaction in structural terms. A major determinant of the enzyme's stereospecificity for D-amino acids is a group of three residues (Tyr30, Arg98, and His100, with the latter two contributed by the neighboring subunit) forming four hydrogen bonds to the substrate alpha-carboxyl group. The replacement by hydrophobic groups of the homologous residues of the branched chain L-amino acid aminotransferase (which has a similar fold) could explain its opposite stereospecificity. As in L-aspartate aminotransferase (L-AspAT), the cofactor in D-aAT tilts (around its phosphate group and N1 as pivots) away from the catalytic lysine 145 and the protein face in the course of the reaction. Unlike L-AspAT, D-aAT shows no other significant conformational changes during the reaction.
-===CRYSTALLOGRAPHIC STRUCTURE OF D-AMINO ACID AMINOTRANSFERASE INACTIVATED BY PYRIDOXYL-D-ALANINE===
+Crystallographic study of steps along the reaction pathway of D-amino acid aminotransferase.,Peisach D, Chipman DM, Van Ophem PW, Manning JM, Ringe D Biochemistry. 1998 Apr 7;37(14):4958-67. PMID:9538014<ref>PMID:9538014</ref>
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
+<div class="pdbe-citations 3daa" style="background-color:#fffaf0;"></div>
-<!--
+==See Also==
-The line below this paragraph, {{ABSTRACT_PUBMED_9538014}}, adds the Publication Abstract to the page
+*[[Aminotransferase 3D structures|Aminotransferase 3D structures]]
-(as it appears on PubMed at http://www.pubmed.gov), where 9538014 is the PubMed ID number.
+*[[Aspartate aminotransferase 3D structures|Aspartate aminotransferase 3D structures]]
--->
+== References ==
-{{ABSTRACT_PUBMED_9538014}}
+<references/>
+__TOC__
-==About this Structure==
+</StructureSection>
-DAA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_sp. Bacillus sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DAA OCA].
+[[Category: Bacillus sp. YM-1]]
+[[Category: Large Structures]]
-==Reference==
+[[Category: Chipman DM]]
-Crystallographic study of steps along the reaction pathway of D-amino acid aminotransferase., Peisach D, Chipman DM, Van Ophem PW, Manning JM, Ringe D, Biochemistry. 1998 Apr 7;37(14):4958-67. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9538014 9538014]
+[[Category: Peisach D]]
-[[Category: Bacillus sp.]]
+[[Category: Ringe D]]
-[[Category: D-amino-acid transaminase]]
-[[Category: Single protein]]
-[[Category: Chipman, D M.]]
-[[Category: Peisach, D.]]
-[[Category: Ringe, D.]]
-[[Category: Aminotransferase]]
-[[Category: Pyridoxal phosphate]]
-[[Category: Transaminase]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 15:20:29 2008''