This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1dma

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 20:35, 9 September 2015

DOMAIN III OF PSEUDOMONAS AERUGINOSA EXOTOXIN COMPLEXED WITH NICOTINAMIDE AND AMP

Structural highlights

1dma is a 2 chain structure with sequence from "bacillus_aeruginosus"_(schroeter_1872)_trevisan_1885 "bacillus aeruginosus" (schroeter 1872) trevisan 1885. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[TOXA_PSEAE] An NAD-dependent ADP-ribosyltransferase (ADPRT). Catalyzes the transfer of the ADP ribosyl moiety of oxidized NAD (NAD(+)) onto eukaryotic elongation factor 2 (eEF-2) thus arresting protein synthesis. Has an LD(50) of 65 ng/ml against the human lung epithelial cell line C38.^[1]

Publication Abstract from PubMed

Domain III of Pseudomonas aeruginosa exotoxin A catalyses the transfer of ADP-ribose from NAD to a modified histidine residue of elongation factor 2 in eukaryotic cells, thus inactivating elongation factor 2. This domain III is inactive in the intact toxin but is active in the isolated form. We report here the 2.5-A crystal structure of this isolated domain crystallized in the presence of NAD and compare it with the corresponding structure in the intact Pseudomonas aeruginosa exotoxin A. We observe a significant conformational difference in the active site region from Arg-458 to Asp-463. Contacts with part of domain II in the intact toxin prevent the adoption of the isolated domain conformation and provide a structural explanation for the observed inactivity. Additional electron density in the active site region corresponds to separate AMP and nicotinamide and indicates that the NAD has been hydrolyzed. The structure has been compared with the catalytic domain of the diphtheria toxin, which was crystallized with ApUp.

The crystal structure of Pseudomonas aeruginosa exotoxin domain III with nicotinamide and AMP: conformational differences with the intact exotoxin.,Li M, Dyda F, Benhar I, Pastan I, Davies DR Proc Natl Acad Sci U S A. 1995 Sep 26;92(20):9308-12. PMID:7568123^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Jorgensen R, Purdy AE, Fieldhouse RJ, Kimber MS, Bartlett DH, Rod Merrill A. Cholix toxin, a novel ADP-ribosylating factor from vibrio cholerae. J Biol Chem. 2008 Feb 25;. PMID:18276581 doi:M710008200
↑ Li M, Dyda F, Benhar I, Pastan I, Davies DR. The crystal structure of Pseudomonas aeruginosa exotoxin domain III with nicotinamide and AMP: conformational differences with the intact exotoxin. Proc Natl Acad Sci U S A. 1995 Sep 26;92(20):9308-12. PMID:7568123

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1dma"

@@ Line 2: / Line 2: @@
 <StructureSection load='1dma' size='340' side='right' caption='[[1dma]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1dma]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DMA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1DMA FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1dma]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_aeruginosus"_(schroeter_1872)_trevisan_1885 "bacillus aeruginosus" (schroeter 1872) trevisan 1885]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DMA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1DMA FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=NCA:NICOTINAMIDE'>NCA</scene></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1dma FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dma OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1dma RCSB], [http://www.ebi.ac.uk/pdbsum/1dma PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1dma FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dma OCA], [http://pdbe.org/1dma PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1dma RCSB], [http://www.ebi.ac.uk/pdbsum/1dma PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 16: / Line 16: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1dma" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 23: / Line 24: @@
 __TOC__
 </StructureSection>
-[[Category: Pseudomonas aeruginosa]]
 [[Category: Benhar, I]]
 [[Category: Davies, D]]

1dma

From Proteopedia

Revision as of 20:35, 9 September 2015

DOMAIN III OF PSEUDOMONAS AERUGINOSA EXOTOXIN COMPLEXED WITH NICOTINAMIDE AND AMP

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox