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2bau

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Revision as of 05:53, 10 September 2015

Solution NMR structure of the micelle-bound myristoylated N-terminal Arf6

Structural highlights

2bau is a 1 chain structure. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[ARF6_HUMAN] GTP-binding protein involved in protein trafficking; regulates endocytic recycling and cytoskeleton remodeling. May modulate vesicle budding and uncoating within the Golgi apparatus. Functions as an allosteric activator of the cholera toxin catalytic subunit, an ADP-ribosyltransferase. Involved in the regulation of dendritic spine development (By similarity). Contributes to the regulation of dendritic branching and filopodia extension.^[1] ^[2] ^[3]

Publication Abstract from PubMed

Arf proteins are guanine nucleotide binding proteins that are implicated in endocytotic pathways and vesicle trafficking. The two widely studied isoforms of Arf proteins (Arf1 and Arf6) have different cellular functions and localizations but similar structures. Arf proteins have an N-terminal helix with a covalently bound myristoyl group. Except structural models, there are no three dimensional structures of the myristoylated N-terminal peptide or the intact myristoylated Arf proteins. However, understanding the role of both the myristoyl group and the N-terminal helix based on the details of their molecular structures is of great interest. In the solution structure of myristoylated N-terminal peptide of Arf6 described here, the myristoyl group folds toward the N-terminus to interact with the hydrophobic residues in particular, the phenyl ring. Also, the structure of the dodecylphosphocholine (DPC) micelle-bound of the peptide together with paramagnetic studies showed that the myristoyl group is inserted into the micelle while residues V4-G10 interact with the surface of the micelle. The structural differences between the unbound and micelle-bound myristoylated N-terminal peptide of Arf6 involves the myristoyl group and the side chains of the hydrophobic residues.

NMR structural studies of the myristoylated N-terminus of ADP ribosylation factor 6 (Arf6).,Gizachew D, Oswald R FEBS Lett. 2006 Jul 24;580(17):4296-301. Epub 2006 Jul 7. PMID:16839550^[4]

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

References

↑ D'Souza-Schorey C, Stahl PD. Myristoylation is required for the intracellular localization and endocytic function of ARF6. Exp Cell Res. 1995 Nov;221(1):153-9. PMID:7589240 doi:http://dx.doi.org/10.1006/excr.1995.1362
↑ Gauthier-Campbell C, Bredt DS, Murphy TH, El-Husseini Ael-D. Regulation of dendritic branching and filopodia formation in hippocampal neurons by specific acylated protein motifs. Mol Biol Cell. 2004 May;15(5):2205-17. Epub 2004 Feb 20. PMID:14978216 doi:10.1091/mbc.E03-07-0493
↑ Pasqualato S, Menetrey J, Franco M, Cherfils J. The structural GDP/GTP cycle of human Arf6. EMBO Rep. 2001 Mar;2(3):234-8. PMID:11266366 doi:10.1093/embo-reports/kve043
↑ Gizachew D, Oswald R. NMR structural studies of the myristoylated N-terminus of ADP ribosylation factor 6 (Arf6). FEBS Lett. 2006 Jul 24;580(17):4296-301. Epub 2006 Jul 7. PMID:16839550 doi:http://dx.doi.org/S0014-5793(06)00810-6

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2bau"

Categories: Gizachew, D | Micelle-bound | Myristoylated peptide | Signaling protein

@@ Line 4: / Line 4: @@
 <table><tr><td colspan='2'>[[2bau]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BAU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2BAU FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MYR:MYRISTIC+ACID'>MYR</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=2bau FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bau OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2bau RCSB], [http://www.ebi.ac.uk/pdbsum/2bau 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=2bau FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bau OCA], [http://pdbe.org/2bau PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2bau RCSB], [http://www.ebi.ac.uk/pdbsum/2bau 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 2bau" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

2bau

From Proteopedia

Revision as of 05:53, 10 September 2015

Solution NMR structure of the micelle-bound myristoylated N-terminal Arf6

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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