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.

3onl

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 21:57, 4 August 2016

yeast Ent3_ENTH-Vti1p_Habc complex structure

Structural highlights

3onl is a 3 chain structure with sequence from Atcc 18824. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	3onj, 3onk
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ENT3_YEAST] Involved in the recruitment of clathrin to the Golgi network and endosomes to form clathrin coated vesicles. Plays a role in the trafficking of clathrin between the Golgi network and endosomes. Binds to membranes enriched in phosphatidylinositol-3,5-bisphosphate (PtdIns(3,5)P2) and, in association with VPS27, is involved in protein sorting at the multivesicular body (MVB).^[1] ^[2] [VTI1_YEAST] t-SNARE found in various SNARE complexes involved in multiple transport pathways. The composition of the t-SNARE complexes is specific for a limited number of v-SNAREs and therefore allows only the vesicles carrying the matching v-SNARE to fuse.^[3] ^[4] ^[5]

Publication Abstract from PubMed

SNARE proteins are crucial for membrane fusion in vesicular transport. To ensure efficient and accurate fusion, SNAREs need to be sorted into different budding vesicles. This process is usually regulated by specific recognition between SNAREs and their adaptor proteins. How different pairs of SNAREs and adaptors achieve their recognition is unclear. Here, we report the recognition between yeast SNARE Vti1p and its adaptor Ent3p derived from three crystal structures. Surprisingly, this yeast pair Vti1p/Ent3p interacts through a distinct binding site compared to their homologues vti1b/epsinR in mammals. An opposite surface on Vti1p_Habc domain binds to a conserved area on the epsin N-terminal homology (ENTH) domain of Ent3p. Two-hybrid, in vitro pull-down and in vivo experiments indicate this binding interface is important for correct localization of Vti1p in the cell. This previously undescribed discovery that a cargo and adaptor pair uses different binding sites across species suggests the diversity of SNARE-adaptor recognition in vesicular transport.

Epsin N-terminal homology domains bind on opposite sides of two SNAREs.,Wang J, Gossing M, Fang P, Zimmermann J, Li X, von Mollard GF, Niu L, Teng M Proc Natl Acad Sci U S A. 2011 Jul 26;108(30):12277-82. Epub 2011 Jul 11. PMID:21746902^[6]

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

References

↑ Duncan MC, Costaguta G, Payne GS. Yeast epsin-related proteins required for Golgi-endosome traffic define a gamma-adaptin ear-binding motif. Nat Cell Biol. 2003 Jan;5(1):77-81. PMID:12483220 doi:http://dx.doi.org/10.1038/ncb901
↑ Eugster A, Pecheur EI, Michel F, Winsor B, Letourneur F, Friant S. Ent5p is required with Ent3p and Vps27p for ubiquitin-dependent protein sorting into the multivesicular body. Mol Biol Cell. 2004 Jul;15(7):3031-41. Epub 2004 Apr 23. PMID:15107463 doi:10.1091/mbc.E03-11-0793
↑ Ungermann C, von Mollard GF, Jensen ON, Margolis N, Stevens TH, Wickner W. Three v-SNAREs and two t-SNAREs, present in a pentameric cis-SNARE complex on isolated vacuoles, are essential for homotypic fusion. J Cell Biol. 1999 Jun 28;145(7):1435-42. PMID:10385523
↑ Paumet F, Brugger B, Parlati F, McNew JA, Sollner TH, Rothman JE. A t-SNARE of the endocytic pathway must be activated for fusion. J Cell Biol. 2001 Dec 10;155(6):961-8. Epub 2001 Dec 10. PMID:11739407 doi:http://dx.doi.org/10.1083/jcb.200104092
↑ Paumet F, Rahimian V, Rothman JE. The specificity of SNARE-dependent fusion is encoded in the SNARE motif. Proc Natl Acad Sci U S A. 2004 Mar 9;101(10):3376-80. Epub 2004 Feb 23. PMID:14981247 doi:http://dx.doi.org/10.1073/pnas.0400271101
↑ Wang J, Gossing M, Fang P, Zimmermann J, Li X, von Mollard GF, Niu L, Teng M. Epsin N-terminal homology domains bind on opposite sides of two SNAREs. Proc Natl Acad Sci U S A. 2011 Jul 26;108(30):12277-82. Epub 2011 Jul 11. PMID:21746902 doi:10.1073/pnas.1013101108

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/3onl"

@@ Line 1: / Line 1: @@
 ==yeast Ent3_ENTH-Vti1p_Habc complex structure==
 <StructureSection load='3onl' size='340' side='right' caption='[[3onl]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
@@ Line 4: / Line 5: @@
 <table><tr><td colspan='2'>[[3onl]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ONL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ONL FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3onj|3onj]], [[3onk|3onk]]</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=3onl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3onl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3onl RCSB], [http://www.ebi.ac.uk/pdbsum/3onl 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=3onl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3onl OCA], [http://pdbe.org/3onl PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3onl RCSB], [http://www.ebi.ac.uk/pdbsum/3onl PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3onl ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 16: / Line 17: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3onl" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

3onl

From Proteopedia

Revision as of 21:57, 4 August 2016

yeast Ent3_ENTH-Vti1p_Habc complex structure

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox