1kc3
From Proteopedia
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| - | [[Image:1kc3.jpg|left|200px]] | + | [[Image:1kc3.jpg|left|200px]] |
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| - | '''Crystal structure of dTDP-6-deoxy-L-lyxo-4-hexulose reductase (RmlD) in complex with NADPH and dTDP-L-rhamnose''' | + | {{Structure |
| + | |PDB= 1kc3 |SIZE=350|CAPTION= <scene name='initialview01'>1kc3</scene>, resolution 2.70Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene> and <scene name='pdbligand=TRH:2'-DEOXY-THYMIDINE-BETA-L-RHAMNOSE'>TRH</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/dTDP-4-dehydrorhamnose_reductase dTDP-4-dehydrorhamnose reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.133 1.1.1.133] | ||
| + | |GENE= rfbA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=602 Salmonella typhimurium]) | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of dTDP-6-deoxy-L-lyxo-4-hexulose reductase (RmlD) in complex with NADPH and dTDP-L-rhamnose''' | ||
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==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1KC3 is a [ | + | 1KC3 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Salmonella_typhimurium Salmonella typhimurium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KC3 OCA]. |
==Reference== | ==Reference== | ||
| - | Variation on a theme of SDR. dTDP-6-deoxy-L- lyxo-4-hexulose reductase (RmlD) shows a new Mg2+-dependent dimerization mode., Blankenfeldt W, Kerr ID, Giraud MF, McMiken HJ, Leonard G, Whitfield C, Messner P, Graninger M, Naismith JH, Structure. 2002 Jun;10(6):773-86. PMID:[http:// | + | Variation on a theme of SDR. dTDP-6-deoxy-L- lyxo-4-hexulose reductase (RmlD) shows a new Mg2+-dependent dimerization mode., Blankenfeldt W, Kerr ID, Giraud MF, McMiken HJ, Leonard G, Whitfield C, Messner P, Graninger M, Naismith JH, Structure. 2002 Jun;10(6):773-86. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12057193 12057193] |
[[Category: Salmonella typhimurium]] | [[Category: Salmonella typhimurium]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: sugar-nucleotide-binding domain]] | [[Category: sugar-nucleotide-binding domain]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:15:22 2008'' |
Revision as of 10:15, 20 March 2008
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| , resolution 2.70Å | |||||||
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| Ligands: | , and | ||||||
| Gene: | rfbA (Salmonella typhimurium) | ||||||
| Activity: | dTDP-4-dehydrorhamnose reductase, with EC number 1.1.1.133 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of dTDP-6-deoxy-L-lyxo-4-hexulose reductase (RmlD) in complex with NADPH and dTDP-L-rhamnose
Overview
dTDP-6-deoxy-L-lyxo-4-hexulose reductase (RmlD) catalyzes the final step in the conversion of dTDP-D-glucose to dTDP-L-rhamnose in an NAD(P)H- and Mg2+-dependent reaction. L-rhamnose biosynthesis is an antibacterial target. The structure of RmlD from Salmonella enterica serovar Typhimurium has been determined, and complexes with NADH, NADPH, and dTDP-L-rhamnose are reported. RmlD differs from other short chain dehydrogenases in that it has a novel dimer interface that contains Mg2+. Enzyme catalysis involves hydride transfer from the nicotinamide ring of the cofactor to the C4'-carbonyl group of the substrate. The substrate is activated through protonation by a conserved tyrosine. NAD(P)H is bound in a solvent-exposed cleft, allowing facile replacement. We suggest a novel role for the conserved serine/threonine residue of the catalytic triad of SDR enzymes.
About this Structure
1KC3 is a Single protein structure of sequence from Salmonella typhimurium. Full crystallographic information is available from OCA.
Reference
Variation on a theme of SDR. dTDP-6-deoxy-L- lyxo-4-hexulose reductase (RmlD) shows a new Mg2+-dependent dimerization mode., Blankenfeldt W, Kerr ID, Giraud MF, McMiken HJ, Leonard G, Whitfield C, Messner P, Graninger M, Naismith JH, Structure. 2002 Jun;10(6):773-86. PMID:12057193
Page seeded by OCA on Thu Mar 20 12:15:22 2008
