2J9U

2 Angstrom X-ray structure of the yeast ESCRT-I Vps28 C-terminus in complex with the NZF-N domain from ESCRT-II


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.224 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Insight Into the Escrt-I/-II Link and its Role in Mvb Trafficking.

Gill, D.J.Teo, H.L.Sun, J.Perisic, O.Veprintsev, D.B.Emr, S.D.Williams, R.L.

(2007) EMBO J 26: 600

  • DOI: 10.1038/sj.emboj.7601501
  • Primary Citation of Related Structures:  
    2J9W, 2J9V, 2J9U

  • PubMed Abstract: 
  • ESCRT (endosomal sorting complex required for transport) complexes orchestrate efficient sorting of ubiquitinated transmembrane receptors to lysosomes via multivesicular bodies (MVBs). Yeast ESCRT-I and ESCRT-II interact directly in vitro; however, this association is not detected in yeast cytosol ...

    ESCRT (endosomal sorting complex required for transport) complexes orchestrate efficient sorting of ubiquitinated transmembrane receptors to lysosomes via multivesicular bodies (MVBs). Yeast ESCRT-I and ESCRT-II interact directly in vitro; however, this association is not detected in yeast cytosol. To gain understanding of the molecular mechanisms of this link, we have characterised the ESCRT-I/-II supercomplex and determined the crystal structure of its interface. The link is formed by the vacuolar protein sorting (Vps)28 C-terminus (ESCRT-I) binding with nanomolar affinity to the Vps36-NZF-N zinc-finger domain (ESCRT-II). A hydrophobic patch on the Vps28-CT four-helix bundle contacts the hydrophobic knuckles of Vps36-NZF-N. Mutation of the ESCRT-I/-II link results in a cargo-sorting defect in yeast. Interestingly, the two Vps36 NZF domains, NZF-N and NZF-C, despite having the same core fold, use distinct surfaces to bind ESCRT-I or ubiquitinated cargo. We also show that a new component of ESCRT-I, Mvb12 (YGR206W), engages ESCRT-I directly with nanomolar affinity to form a 1:1:1:1 heterotetramer. Mvb12 does not affect the affinity of ESCRT-I for ESCRT-II in vitro. Our data suggest a complex regulatory mechanism for the ESCRT-I/-II link in yeast.


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Medical Research Council Centre, Cambridge, UK. djg38@mrc-lmb.cam.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
VACUOLAR PROTEIN SORTING-ASSOCIATED PROTEIN 28A, C96Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for Q02767 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q02767 
Go to UniProtKB:  Q02767
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
VACUOLAR PROTEIN SORTING-ASSOCIATED PROTEIN 36B, D76Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for Q06696 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q06696 
Go to UniProtKB:  Q06696
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
E [auth B], F [auth D]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.224 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.645α = 90
b = 99.961β = 90
c = 115.619γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-01-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2018-01-24
    Changes: Source and taxonomy