1e4e
From Proteopedia
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| - | [[Image:1e4e.jpg|left|200px]]<br /><applet load="1e4e" size=" | + | [[Image:1e4e.jpg|left|200px]]<br /><applet load="1e4e" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1e4e, resolution 2.5Å" /> | caption="1e4e, resolution 2.5Å" /> | ||
'''D-ALANYL-D-LACATE LIGASE'''<br /> | '''D-ALANYL-D-LACATE LIGASE'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1E4E is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Enterococcus_faecium Enterococcus faecium] with MG, SO4, ADP, PHY and GOL as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Sites: <scene name='pdbsite=AC1:Phy Binding Site For Chain A'>AC1</scene>, <scene name='pdbsite=AC2:Phy Binding Site For Chain B'>AC2</scene>, <scene name='pdbsite=AC3:Adp Binding Site For Chain A'>AC3</scene> and <scene name='pdbsite=AC4:Adp Binding Site For Chain B'>AC4</scene>. Full crystallographic information is available from [http:// | + | 1E4E is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Enterococcus_faecium Enterococcus faecium] with <scene name='pdbligand=MG:'>MG</scene>, <scene name='pdbligand=SO4:'>SO4</scene>, <scene name='pdbligand=ADP:'>ADP</scene>, <scene name='pdbligand=PHY:'>PHY</scene> and <scene name='pdbligand=GOL:'>GOL</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Sites: <scene name='pdbsite=AC1:Phy+Binding+Site+For+Chain+A'>AC1</scene>, <scene name='pdbsite=AC2:Phy+Binding+Site+For+Chain+B'>AC2</scene>, <scene name='pdbsite=AC3:Adp+Binding+Site+For+Chain+A'>AC3</scene> and <scene name='pdbsite=AC4:Adp+Binding+Site+For+Chain+B'>AC4</scene>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E4E OCA]. |
==Reference== | ==Reference== | ||
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[[Category: plasmid]] | [[Category: plasmid]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Feb 3 09:37:11 2008'' |
Revision as of 07:37, 3 February 2008
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D-ALANYL-D-LACATE LIGASE
Overview
d-alanine-d-lactate ligase from Enterococcus faecium BM4147 is directly, responsible for the biosynthesis of alternate cell-wall precursors in, bacteria, which are resistant to the glycopeptide antibiotic vancomycin., The crystal structure has been determined with data extending to 2.5-A, resolution. This structure shows that the active site has unexpected, interactions and is distinct from previous models for d-alanyl-d-lactate, ligase mechanistic studies. It appears that the preference of the enzyme, for lactate as a ligand over d-alanine could be mediated by electrostatic, effects and/or a hydrogen-bonding network, which principally involve, His-244. The structure of d-alanyl-d-lactate ligase provides a revised, interpretation of the molecular events that lead to vancomycin resistance.
About this Structure
1E4E is a Protein complex structure of sequences from Enterococcus faecium with , , , and as ligands. Known structural/functional Sites: , , and . Full crystallographic information is available from OCA.
Reference
The molecular basis of vancomycin resistance in clinically relevant Enterococci: crystal structure of D-alanyl-D-lactate ligase (VanA)., Roper DI, Huyton T, Vagin A, Dodson G, Proc Natl Acad Sci U S A. 2000 Aug 1;97(16):8921-5. PMID:10908650
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Categories: Enterococcus faecium | Protein complex | Roper, D.I. | ADP | GOL | MG | PHY | SO4 | Antibiotic resistance | Cell wall | Ligase | Membrane | Peptidoglycan synthesis | Plasmid
