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.

2zet

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 17:07, 25 December 2014

Crystal structure of the small GTPase Rab27B complexed with the Slp homology domain of Slac2-a/melanophilin

Structural highlights

2zet is a 4 chain structure with sequence from Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
NonStd Res:
Gene:	Rab27b (Mus musculus), Slac2a (Mus musculus)
Resources:	FirstGlance, OCA, RCSB, PDBsum, TOPSAN

Function

[RB27B_MOUSE] May be involved in targeting uroplakins to urothelial apical membranes (By similarity). [MELPH_MOUSE] Rab effector protein involved in melanosome transport. Serves as link between melanosome-bound RAB27A and the motor protein MYO5A.^[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

Rab27A is required for actin-based melanosome transport in mammalian skin melanocytes through its interaction with a specific effector, Slac2-a/melanophilin. Mutations that disrupt the Rab27A/Slac2-a interaction cause human Griscelli syndrome. The other Rab27 isoform, Rab27B, also binds all of the known effectors of Rab27A. In this study, we determined the crystal structure of the constitutively active form of Rab27B complexed with GTP and the effector domain of Slac2-a. The Rab27B/Slac2-a complex exhibits several intermolecular hydrogen bonds that were not observed in the previously reported Rab3A/rabphilin complex. A Rab27A mutation that disrupts one of the specific hydrogen bonds with Slac2-a resulted in the dramatic reduction of Slac2-a binding activity. Furthermore, we generated a Rab3A mutant that acquires Slac2-a binding ability by transplanting four Rab27-specific residues into Rab3A. These findings provide the structural basis for the exclusive association of Slac2-a with the Rab27 subfamily, whereas rabphilin binds several subfamilies, including Rab3 and Rab27.

Structural basis for the exclusive specificity of Slac2-a/melanophilin for the Rab27 GTPases.,Kukimoto-Niino M, Sakamoto A, Kanno E, Hanawa-Suetsugu K, Terada T, Shirouzu M, Fukuda M, Yokoyama S Structure. 2008 Oct 8;16(10):1478-90. PMID:18940604^[2]

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

References

↑ Wu XS, Rao K, Zhang H, Wang F, Sellers JR, Matesic LE, Copeland NG, Jenkins NA, Hammer JA 3rd. Identification of an organelle receptor for myosin-Va. Nat Cell Biol. 2002 Apr;4(4):271-8. PMID:11887186 doi:10.1038/ncb760
↑ Kukimoto-Niino M, Sakamoto A, Kanno E, Hanawa-Suetsugu K, Terada T, Shirouzu M, Fukuda M, Yokoyama S. Structural basis for the exclusive specificity of Slac2-a/melanophilin for the Rab27 GTPases. Structure. 2008 Oct 8;16(10):1478-90. PMID:18940604 doi:10.1016/j.str.2008.07.014

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 3: / Line 3: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[2zet]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZET OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ZET FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-<tr><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='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><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Rab27b ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]), Slac2a ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Rab27b ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]), Slac2a ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])</td></tr>
-<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2zet FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zet OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2zet RCSB], [http://www.ebi.ac.uk/pdbsum/2zet PDBsum], [http://www.topsan.org/Proteins/RSGI/2zet TOPSAN]</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=2zet FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zet OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2zet RCSB], [http://www.ebi.ac.uk/pdbsum/2zet PDBsum], [http://www.topsan.org/Proteins/RSGI/2zet TOPSAN]</span></td></tr>
-<table>
+</table>
+== Function ==
+[[http://www.uniprot.org/uniprot/RB27B_MOUSE RB27B_MOUSE]] May be involved in targeting uroplakins to urothelial apical membranes (By similarity). [[http://www.uniprot.org/uniprot/MELPH_MOUSE MELPH_MOUSE]] Rab effector protein involved in melanosome transport. Serves as link between melanosome-bound RAB27A and the motor protein MYO5A.<ref>PMID:11887186</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 31: / Line 33: @@
 </StructureSection>
 [[Category: Mus musculus]]
-[[Category: Fukuda, M.]]
+[[Category: Fukuda, M]]
-[[Category: Hanawa-Suetsugu, K.]]
+[[Category: Hanawa-Suetsugu, K]]
-[[Category: Kanno, E.]]
+[[Category: Kanno, E]]
-[[Category: Kukimoto-Niino, M.]]
+[[Category: Kukimoto-Niino, M]]
-[[Category: RSGI, RIKEN Structural Genomics/Proteomics Initiative.]]
+[[Category: Structural genomic]]
-[[Category: Sakamoto, A.]]
+[[Category: Sakamoto, A]]
-[[Category: Shirouzu, M.]]
+[[Category: Shirouzu, M]]
-[[Category: Terada, T.]]
+[[Category: Terada, T]]
-[[Category: Yokoyama, S.]]
+[[Category: Yokoyama, S]]
 [[Category: Complex]]
 [[Category: Effector]]
@@ Line 56: / Line 58: @@
 [[Category: Rab]]
 [[Category: Rab27b]]
-[[Category: Riken structural genomics/proteomics initiative]]
 [[Category: Rsgi]]
 [[Category: Signaling protein]]
 [[Category: Slp homology domain]]
-[[Category: Structural genomic]]
 [[Category: Zinc-finger]]

2zet

From Proteopedia

Revision as of 17:07, 25 December 2014

Crystal structure of the small GTPase Rab27B complexed with the Slp homology domain of Slac2-a/melanophilin

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox