DDR1 kinase autoinhibited by its juxtamembrane region

Experimental Data Snapshot

  • Resolution: 2.58 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.228 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Two-step release of kinase autoinhibition in discoidin domain receptor 1.

Sammon, D.Hohenester, E.Leitinger, B.

(2020) Proc Natl Acad Sci U S A 117: 22051-22060

  • DOI: https://doi.org/10.1073/pnas.2007271117
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Discoidin domain receptor 1 (DDR1) is a collagen-activated receptor tyrosine kinase with important functions in organogenesis and tissue homeostasis. Aberrant DDR1 activity contributes to the progression of human diseases, including fibrosis and cancer. How DDR1 activity is regulated is poorly understood. We investigated the function of the long intracellular juxtamembrane (JM) region of human DDR1 and found that the kinase-proximal segment, JM4, is an important regulator of kinase activity. Crystal structure analysis revealed that JM4 forms a hairpin that penetrates the kinase active site, reinforcing autoinhibition by the activation loop. Using in vitro enzymology with soluble kinase constructs, we established that release from autoinhibition occurs in two distinct steps: rapid autophosphorylation of the JM4 tyrosines, Tyr569 and Tyr586, followed by slower autophosphorylation of activation loop tyrosines. Mutation of JM4 tyrosines abolished collagen-induced DDR1 activation in cells. The insights may be used to develop allosteric, DDR1-specific, kinase inhibitors.

  • Organizational Affiliation

    National Heart and Lung Institute, Imperial College London, SW7 2AZ London, United Kingdom.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Epithelial discoidin domain-containing receptor 1
A, B, C
350Homo sapiensMutation(s): 2 
UniProt & NIH Common Fund Data Resources
Find proteins for Q08345 (Homo sapiens)
Explore Q08345 
Go to UniProtKB:  Q08345
PHAROS:  Q08345
GTEx:  ENSG00000204580 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ08345
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.58 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.228 
  • Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 105.307α = 90
b = 105.307β = 90
c = 406.939γ = 120
Software Package:
Software NamePurpose
xia2data reduction
xia2data scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Biotechnology and Biological Sciences Research Council (BBSRC)United Kingdom--

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-02
    Type: Initial release
  • Version 1.1: 2020-09-16
    Changes: Database references
  • Version 1.2: 2024-01-24
    Changes: Data collection, Database references, Refinement description