4N5C

Crystal structure of Ypp1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.240 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural insights into assembly and regulation of the plasma membrane phosphatidylinositol 4-kinase complex.

Wu, X.Chi, R.J.Baskin, J.M.Lucast, L.Burd, C.G.De Camilli, P.Reinisch, K.M.

(2014) Dev Cell 28: 19-29

  • DOI: 10.1016/j.devcel.2013.11.012
  • Primary Citation of Related Structures:  
    4N5C, 4N5A

  • PubMed Abstract: 
  • Plasma membrane PI4P helps determine the identity of this membrane and plays a key role in signal transduction as the precursor of PI(4,5)P2 and its metabolites. Here, we report the atomic structure of the protein scaffold that is required for the plasma membrane localization and function of Stt4/PI4KIIIα, the PI 4-kinase responsible for this PI4P pool ...

    Plasma membrane PI4P helps determine the identity of this membrane and plays a key role in signal transduction as the precursor of PI(4,5)P2 and its metabolites. Here, we report the atomic structure of the protein scaffold that is required for the plasma membrane localization and function of Stt4/PI4KIIIα, the PI 4-kinase responsible for this PI4P pool. Both proteins of the scaffold, Efr3 and YPP1/TTC7, are composed of α-helical repeats, which are arranged into a rod in Efr3 and a superhelix in Ypp1. A conserved basic patch in Efr3, which binds acidic phospholipids, anchors the complex to the plasma membrane. Stt4/PI4KIIIα is recruited by interacting with the Ypp1 C-terminal lobe, which also binds to unstructured regions in the Efr3 C terminus. Phosphorylation of this Efr3 region counteracts Ypp1 binding, thus providing a mechanism through which Stt4/PI4KIIIα recruitment, and thus a metabolic reaction of fundamental importance in cell physiology, can be regulated.


    Organizational Affiliation

    Department of Cell Biology, Yale School of Medicine, New Haven, CT 06520, USA. Electronic address: karin.reinisch@yale.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cargo-transport protein YPP1A, B, C, D, E, F, G, H802Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: YPP1YGR198WG7594
UniProt
Find proteins for P46951 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P46951 
Go to UniProtKB:  P46951
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, E, F, G, HL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.240 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.545α = 76.69
b = 136.65β = 85.67
c = 154.125γ = 72.74
Software Package:
Software NamePurpose
ADSCdata collection
SHARPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-01-22
    Type: Initial release
  • Version 1.1: 2014-03-19
    Changes: Database references