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1wr6

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Revision as of 11:18, 11 September 2015

Crystal structure of GGA3 GAT domain in complex with ubiquitin

Structural highlights

1wr6 is a 8 chain structure with sequence from Bos taurus and Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[GGA3_HUMAN] Plays a role in protein sorting and trafficking between the trans-Golgi network (TGN) and endosomes. Mediates the ARF-dependent recruitment of clathrin to the TGN and binds ubiquitinated proteins and membrane cargo molecules with a cytosolic acidic cluster-dileucine (AC-LL) motif.^[1]

Evolutionary Conservation

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

Publication Abstract from PubMed

GGA (Golgi-localizing, gamma-adaptin ear domain homology, ARF-binding) proteins, which constitute a family of clathrin coat adaptor proteins, have recently been shown to be involved in the ubiquitin-dependent sorting of receptors, through the interaction between the C-terminal three-helix-bundle of the GAT (GGA and Tom1) domain (C-GAT) and ubiquitin. We report here the crystal structure of human GGA3 C-GAT in complex with ubiquitin. A hydrophobic patch on C-GAT helices alpha1 and alpha2 forms a binding site for the hydrophobic Ile44 surface of ubiquitin. Two distinct orientations of ubiquitin Arg42 determine the shape and the charge distribution of ubiquitin Ile44 surface, leading to two different binding modes. Biochemical and NMR data strongly suggest another hydrophobic binding site on C-GAT helices alpha2 and alpha3, opposite to the first binding site, also binds ubiquitin although weakly. The double-sided ubiquitin binding provides the GAT domain with higher efficiency in recognizing ubiquitinated receptors for lysosomal receptor degradation.

Molecular mechanism of ubiquitin recognition by GGA3 GAT domain.,Kawasaki M, Shiba T, Shiba Y, Yamaguchi Y, Matsugaki N, Igarashi N, Suzuki M, Kato R, Kato K, Nakayama K, Wakatsuki S Genes Cells. 2005 Jul;10(7):639-54. PMID:15966896^[2]

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

References

↑ Puertollano R, Randazzo PA, Presley JF, Hartnell LM, Bonifacino JS. The GGAs promote ARF-dependent recruitment of clathrin to the TGN. Cell. 2001 Apr 6;105(1):93-102. PMID:11301005
↑ Kawasaki M, Shiba T, Shiba Y, Yamaguchi Y, Matsugaki N, Igarashi N, Suzuki M, Kato R, Kato K, Nakayama K, Wakatsuki S. Molecular mechanism of ubiquitin recognition by GGA3 GAT domain. Genes Cells. 2005 Jul;10(7):639-54. PMID:15966896 doi:10.1111/j.1365-2443.2005.00865.x

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1wr6"

@@ Line 2: / Line 2: @@
 <StructureSection load='1wr6' size='340' side='right' caption='[[1wr6]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1wr6]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WR6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1WR6 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1wr6]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WR6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1WR6 FirstGlance]. <br>
 </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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=1wr6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wr6 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1wr6 RCSB], [http://www.ebi.ac.uk/pdbsum/1wr6 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=1wr6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wr6 OCA], [http://pdbe.org/1wr6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1wr6 RCSB], [http://www.ebi.ac.uk/pdbsum/1wr6 PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 26: / Line 26: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1wr6" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 34: / Line 35: @@
 </StructureSection>
 [[Category: Bos taurus]]
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Igarashi, N]]
 [[Category: Kato, K]]

1wr6

From Proteopedia

Revision as of 11:18, 11 September 2015

Crystal structure of GGA3 GAT domain in complex with ubiquitin

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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