4uag: Difference between revisions
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|PDB= 4uag |SIZE=350|CAPTION= <scene name='initialview01'>4uag</scene>, resolution 1.660Å | |PDB= 4uag |SIZE=350|CAPTION= <scene name='initialview01'>4uag</scene>, resolution 1.660Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=UAG:URIDINE-5 | |LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=UAG:URIDINE-5'-DIPHOSPHATE-N-ACETYLMURAMOYL-L-ALANINE-D-GLUTAMATE'>UAG</scene> and <scene name='pdbligand=UNX:UNKNOWN ATOM OR ION'>UNX</scene> | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/UDP-N-acetylmuramoyl-L-alanine--D-glutamate_ligase UDP-N-acetylmuramoyl-L-alanine--D-glutamate ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.2.9 6.3.2.9] | |ACTIVITY= [http://en.wikipedia.org/wiki/UDP-N-acetylmuramoyl-L-alanine--D-glutamate_ligase UDP-N-acetylmuramoyl-L-alanine--D-glutamate ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.2.9 6.3.2.9] | ||
|GENE= MURD GENE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]) | |GENE= MURD GENE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]) | ||
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[[Category: peptidoglycan synthesis]] | [[Category: peptidoglycan synthesis]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 16:05:03 2008'' | ||
Revision as of 17:05, 23 March 2008
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| , resolution 1.660Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , and | ||||||
| Gene: | MURD GENE (Escherichia coli) | ||||||
| Activity: | UDP-N-acetylmuramoyl-L-alanine--D-glutamate ligase, with EC number 6.3.2.9 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
UDP-N-ACETYLMURAMOYL-L-ALANINE:D-GLUTAMATE LIGASE
OverviewOverview
UDP -N- acetylmuramoyl- L -alanine: D -glutamate (MurD) ligase catalyses the addition of d -glutamate to the nucleotide precursor UDP -N- acetylmuramoyl- L -alanine (UMA). The crystal structures of three complexes of Escherichia coli MurD with a variety of substrates and products have been determined to high resolution. These include (1) the quaternary complex of MurD, the substrate UMA, the product ADP, and Mg2+, (2) the quaternary complex of MurD, the substrate UMA, the product ADP, and Mn2+, and (3) the binary complex of MurD with the product UDP - N- acetylmuramoyl- L -alanine- D -glutamate (UMAG). The reaction mechanism supported by these structures proceeds by the phosphorylation of the C-terminal carboxylate group of UMA by the gamma-phosphate group of ATP to form an acyl-phosphate intermediate, followed by the nucleophilic attack by the amino group of D-glutamate to produce UMAG. A key feature in the reaction intermediate is the presence of two magnesium ions bridging negatively charged groups.
About this StructureAbout this Structure
4UAG is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
ReferenceReference
Determination of the MurD mechanism through crystallographic analysis of enzyme complexes., Bertrand JA, Auger G, Martin L, Fanchon E, Blanot D, Le Beller D, van Heijenoort J, Dideberg O, J Mol Biol. 1999 Jun 11;289(3):579-90. PMID:10356330
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