2dln: Difference between revisions

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[[Image:2dln.jpg|left|200px]]


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==VANCOMYCIN RESISTANCE: STRUCTURE OF D-ALANINE:D-ALANINE LIGASE AT 2.3 ANGSTROMS RESOLUTION==
The line below this paragraph, containing "STRUCTURE_2dln", creates the "Structure Box" on the page.
<StructureSection load='2dln' size='340' side='right'caption='[[2dln]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[2dln]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. The December 2015 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Vancomycin''  by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2015_12 10.2210/rcsb_pdb/mom_2015_12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2DLN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2DLN FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PHY:1(S)-AMINOETHYL-(2-CARBOXYPROPYL)PHOSPHORYL-PHOSPHINIC+ACID'>PHY</scene></td></tr>
{{STRUCTURE_2dln| PDB=2dln |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2dln FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2dln OCA], [https://pdbe.org/2dln PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2dln RCSB], [https://www.ebi.ac.uk/pdbsum/2dln PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2dln ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/DDLB_ECOLI DDLB_ECOLI] Cell wall formation.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dl/2dln_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2dln ConSurf].
<div style="clear:both"></div>


'''VANCOMYCIN RESISTANCE: STRUCTURE OF D-ALANINE:D-ALANINE LIGASE AT 2.3 ANGSTROMS RESOLUTION'''
==See Also==
 
*[[D-alanine-D-alanine ligase 3D structures|D-alanine-D-alanine ligase 3D structures]]
 
__TOC__
==Overview==
</StructureSection>
The molecular structure of the D-alanine:D-alanine ligase of the ddlB gene of Escherichia coli, co-crystallized with an S,R-methylphosphinate and adenosine triphosphate, was determined by x-ray diffraction to a resolution of 2.3 angstroms. A catalytic mechanism for the ligation of two D-alanine substrates is proposed in which a helix dipole and a hydrogen-bonded triad of tyrosine, serine, and glutamic acid assist binding and deprotonation steps. From sequence comparison, it is proposed that a different triad exists in a recently discovered D-alanine:D-lactate ligase (VanA) present in vancomycin-resistant enterococci. A molecular mechanism for the altered specificity of VanA is suggested.
 
==About this Structure==
2DLN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2DLN OCA].
 
==Reference==
Vancomycin resistance: structure of D-alanine:D-alanine ligase at 2.3 A resolution., Fan C, Moews PC, Walsh CT, Knox JR, Science. 1994 Oct 21;266(5184):439-43. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7939684 7939684]
[[Category: D-alanine--D-alanine ligase]]
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Fan, C.]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Knox, J R.]]
[[Category: Vancomycin]]
[[Category: Moews, P C.]]
[[Category: Fan C]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 00:41:19 2008''
[[Category: Knox JR]]
[[Category: Moews PC]]

Latest revision as of 12:18, 14 February 2024

VANCOMYCIN RESISTANCE: STRUCTURE OF D-ALANINE:D-ALANINE LIGASE AT 2.3 ANGSTROMS RESOLUTIONVANCOMYCIN RESISTANCE: STRUCTURE OF D-ALANINE:D-ALANINE LIGASE AT 2.3 ANGSTROMS RESOLUTION

Structural highlights

2dln is a 1 chain structure with sequence from Escherichia coli. The December 2015 RCSB PDB Molecule of the Month feature on Vancomycin by David Goodsell is 10.2210/rcsb_pdb/mom_2015_12. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.3Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

DDLB_ECOLI Cell wall formation.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

2dln, resolution 2.30Å

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