4cxq
From Proteopedia
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| - | {{STRUCTURE_4cxq| PDB=4cxq | SCENE= }} | ||
| - | ===Mycobaterium tuberculosis transaminase BioA complexed with substrate KAPA=== | ||
| - | {{ABSTRACT_PUBMED_24482078}} | ||
| - | == | + | ==Mycobaterium tuberculosis transaminase BioA complexed with substrate KAPA== |
| - | [[http://www.uniprot.org/uniprot/BIOA_MYCTU BIOA_MYCTU | + | <StructureSection load='4cxq' size='340' side='right'caption='[[4cxq]], [[Resolution|resolution]] 1.80Å' scene=''> |
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4cxq]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=4mqn 4mqn]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4CXQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4CXQ FirstGlance]. <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]] 1.8Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=KAP:7-KETO-8-AMINOPELARGONIC+ACID'>KAP</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=PLP:PYRIDOXAL-5-PHOSPHATE'>PLP</scene></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=4cxq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4cxq OCA], [https://pdbe.org/4cxq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4cxq RCSB], [https://www.ebi.ac.uk/pdbsum/4cxq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4cxq ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/BIOA_MYCTU BIOA_MYCTU] Catalyzes the reversible transfer of the alpha-amino group from S-adenosyl-L-methionine (SAM) to 7-keto-8-aminopelargonic acid (KAPA) to form 7,8-diaminopelargonic acid (DAPA). It is the only animotransferase known to utilize SAM as an amino donor. Can also use sinefungin as substrate.<ref>PMID:16984394</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | 7,8-Diaminopelargonic acid synthase (BioA) of Mycobacterium tuberculosis is a recently validated target for therapeutic intervention in the treatment of tuberculosis (TB). Using biophysical fragment screening and structural characterization of compounds, we have identified a potent aryl hydrazine inhibitor of BioA that reversibly modifies the pyridoxal-5'-phosphate (PLP) cofactor, forming a stable quinonoid. Analogous hydrazides also form covalent adducts that can be observed crystallographically but are incapable of inactivating the enzyme. In the X-ray crystal structures, small molecules induce unexpected conformational remodeling in the substrate binding site. We compared these conformational changes to those induced upon binding of the substrate (7-keto-8-aminopelargonic acid), and characterized the inhibition kinetics and the X-ray crystal structures of BioA with the hydrazine compound and analogues to unveil the mechanism of this reversible covalent modification. | ||
| - | + | Inhibition of Mycobacterium tuberculosis Transaminase BioA by Aryl Hydrazines and Hydrazides.,Dai R, Wilson DJ, Geders TW, Aldrich CC, Finzel BC Chembiochem. 2014 Mar 3;15(4):575-86. doi: 10.1002/cbic.201300748. Epub 2014 Jan , 31. PMID:24482078<ref>PMID:24482078</ref> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | < | + | </div> |
| - | [[ | + | <div class="pdbe-citations 4cxq" style="background-color:#fffaf0;"></div> |
| - | + | ||
| - | [[Category: | + | ==See Also== |
| - | [[Category: | + | *[[7%2C8-diaminopelargonic acid synthase 3D structures|7%2C8-diaminopelargonic acid synthase 3D structures]] |
| - | [[Category: | + | == References == |
| - | [[Category: | + | <references/> |
| - | [[Category: | + | __TOC__ |
| - | [[Category: | + | </StructureSection> |
| - | [[Category: | + | [[Category: Large Structures]] |
| + | [[Category: Mycobacterium tuberculosis]] | ||
| + | [[Category: Aldrich CC]] | ||
| + | [[Category: Dai R]] | ||
| + | [[Category: Finzel BC]] | ||
| + | [[Category: Geders TW]] | ||
| + | [[Category: Wilson DJ]] | ||
Current revision
Mycobaterium tuberculosis transaminase BioA complexed with substrate KAPA
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