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 
  • R-Value Observed: 0.211 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


This is version 1.3 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: https://doi.org/10.1016/j.str.2018.12.002
  • Primary Citation of Related Structures:  
    6HKW

  • 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 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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein phosphatase 1 regulatory subunit 7
A, B, C, D, E
363Homo sapiensMutation(s): 0 
Gene Names: PPP1R7SDS22
UniProt & NIH Common Fund Data Resources
Find proteins for Q15435 (Homo sapiens)
Explore Q15435 
Go to UniProtKB:  Q15435
PHAROS:  Q15435
GTEx:  ENSG00000115685 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ15435
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
F [auth A]
G [auth A]
H [auth A]
I [auth A]
J [auth A]
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth B],
M [auth B],
N [auth B],
O [auth C],
P [auth C],
Q [auth C],
R [auth C],
S [auth D],
T [auth D],
U [auth D],
V [auth D],
W [auth E],
X [auth E],
Y [auth E]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.09 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 177.764α = 90
b = 81.153β = 104.37
c = 191.958γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)United States1R01NS091336
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR01GM098482
BelgiumGOA/15/016
BelgiumG065515N

Revision History  (Full details and data files)

  • Version 1.0: 2019-01-30
    Type: Initial release
  • Version 1.1: 2019-03-13
    Changes: Data collection, Database references
  • Version 1.2: 2022-03-30
    Changes: Author supporting evidence, Database references
  • Version 1.3: 2024-01-17
    Changes: Data collection, Refinement description