6HKW

Crystal structure of human SDS22


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.09 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure-Guided Exploration of SDS22 Interactions with Protein Phosphatase PP1 and the Splicing Factor BCLAF1.

Heroes, E.Van der Hoeven, G.Choy, M.S.Garcia, J.D.P.Ferreira, M.Nys, M.Derua, R.Beullens, M.Ulens, C.Peti, W.Van Meervelt, L.Page, R.Bollen, M.

(2019) Structure 27: 507-518.e5

  • DOI: 10.1016/j.str.2018.12.002

  • PubMed Abstract: 
  • SDS22 is an ancient regulator of protein phosphatase-1 (PP1). Our crystal structure of SDS22 shows that its twelve leucine-rich repeats adopt a banana-shaped fold that is shielded from solvent by capping domains at its extremities. Subsequent modelin ...

    SDS22 is an ancient regulator of protein phosphatase-1 (PP1). Our crystal structure of SDS22 shows that its twelve leucine-rich repeats adopt a banana-shaped fold that is shielded from solvent by capping domains at its extremities. Subsequent modeling and biochemical studies revealed that the concave side of SDS22 likely interacts with PP1 helices α5 and α6, which are distal from the binding sites of many previously described PP1 interactors. Accordingly, we found that SDS22 acts as a "third" subunit of multiple PP1 holoenzymes. The crystal structure of SDS22 also revealed a large basic surface patch that enables binding of a phosphorylated form of splicing factor BCLAF1. Taken together, our data provide insights into the formation of PP1:SDS22 and the recruitment of additional interaction proteins, such as BCLAF1.


    Organizational Affiliation

    Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium; Biomolecular Architecture, Department of Chemistry, KU Leuven, Leuven, Belgium.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein phosphatase 1 regulatory subunit 7
A, B, C, D, E
363Homo sapiensMutation(s): 0 
Gene Names: PPP1R7 (SDS22)
Find proteins for Q15435 (Homo sapiens)
Go to Gene View: PPP1R7
Go to UniProtKB:  Q15435
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, D, E
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.09 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.210 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 177.764α = 90.00
b = 81.153β = 104.37
c = 191.958γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
XDSdata scaling
PHENIXrefinement
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Neurological Disorders and StrokeUnited States1R01NS091336
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM098482
BelgiumGOA/15/016
BelgiumG065515N

Revision History 

  • Version 1.0: 2019-01-30
    Type: Initial release
  • Version 1.1: 2019-03-13
    Type: Data collection, Database references