1mc4

<StructureSection load='1mc4' size='340' side='right' caption='[[1mc4]], [[Resolution|resolution]] 2.77&Aring;' scene=''>

<table><tr><td colspan='2'>[[1mc4]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillo_virgola_del_koch"_trevisan_1884 "bacillo virgola del koch" trevisan 1884]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MC4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1MC4 FirstGlance]. <br>

</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1gl3|1gl3]], [[1brm|1brm]], [[1mb4|1mb4]]</td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">asd ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=666 "Bacillo virgola del Koch" Trevisan 1884])</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'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1mc4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mc4 OCA], [http://pdbe.org/1mc4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1mc4 RCSB], [http://www.ebi.ac.uk/pdbsum/1mc4 PDBsum]</span></td></tr>

[[http://www.uniprot.org/uniprot/DHAS1_VIBCH DHAS1_VIBCH]] Catalyzes the NADPH-dependent formation of L-aspartate-semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl-4-phosphate.<ref>PMID:12071715</ref>

<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/mc/1mc4_consurf.spt"</scriptWhenChecked>

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== Publication Abstract from PubMed ==

L-Aspartate-beta-semialdehyde dehydrogenase (ASADH) catalyzes the reductive dephosphorylation of beta-aspartyl phosphate to L-aspartate-beta-semialdehyde in the aspartate biosynthetic pathway of plants and micro-organisms. The aspartate pathway produces fully one-quarter of the naturally occurring amino acids, but is not found in humans or other eukaryotic organisms, making ASADH an attractive target for the development of new antibacterial, fungicidal, or herbicidal compounds. We have determined the structure of ASADH from Vibrio cholerae in two states; the apoenzyme and a complex with NADP, and a covalently bound active site inhibitor, S-methyl-L-cysteine sulfoxide. Upon binding the inhibitor undergoes an enzyme-catalyzed reductive demethylation leading to a covalently bound cysteine that is observed in the complex structure. The enzyme is a functional homodimer, with extensive intersubunit contacts and a symmetrical 4-amino acid bridge linking the active site residues in adjacent subunits that could serve as a communication channel. The active site is essentially preformed, with minimal differences in active site conformation in the apoenzyme relative to the ternary inhibitor complex. The conformational changes that do occur result primarily from NADP binding, and are localized to the repositioning of two surface loops located on the rim at opposite sides of the NADP cleft.

A structural basis for the mechanism of aspartate-beta-semialdehyde dehydrogenase from Vibrio cholerae.,Blanco J, Moore RA, Kabaleeswaran V, Viola RE Protein Sci. 2003 Jan;12(1):27-33. PMID:12493825<ref>PMID:12493825</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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<div class="pdbe-citations 1mc4" style="background-color:#fffaf0;"></div>

*[[Aspartate-semialdehyde dehydrogenase|Aspartate-semialdehyde dehydrogenase]]

[[Category: Bacillo virgola del koch trevisan 1884]]

[[Category: Oxidoreductase]]