6X3A

Crystal structure of the FN4-FN6 domains of human PTPRD

  • Classification: CELL ADHESION
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2020-05-21 Released: 2021-05-26 
  • Deposition Author(s): Bouyain, S., Kawakami, J.E.
  • Funding Organization(s): National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIH/NIAMS)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.77 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.198 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Complex protein interactions mediate Drosophila Lar function in muscle tissue.

Kawakami, J.Brooks, D.Zalmai, R.Hartson, S.D.Bouyain, S.Geisbrecht, E.R.

(2022) PLoS One 17: e0269037-e0269037

  • DOI: https://doi.org/10.1371/journal.pone.0269037
  • Primary Citation of Related Structures:  
    6X38, 6X39, 6X3A

  • PubMed Abstract: 

    The type IIa family of receptor protein tyrosine phosphatases (RPTPs), including Lar, RPTPσ and RPTPδ, are well-studied in coordinating actin cytoskeletal rearrangements during axon guidance and synaptogenesis. To determine whether this regulation is conserved in other tissues, interdisciplinary approaches were utilized to study Lar-RPTPs in the Drosophila musculature. Here we find that the single fly ortholog, Drosophila Lar (Dlar), is localized to the muscle costamere and that a decrease in Dlar causes aberrant sarcomeric patterning, deficits in larval locomotion, and integrin mislocalization. Sequence analysis uncovered an evolutionarily conserved Lys-Gly-Asp (KGD) signature in the extracellular region of Dlar. Since this tripeptide sequence is similar to the integrin-binding Arg-Gly-Asp (RGD) motif, we tested the hypothesis that Dlar directly interacts with integrin proteins. However, structural analyses of the fibronectin type III domains of Dlar and two vertebrate orthologs that include this conserved motif indicate that this KGD tripeptide is not accessible and thus unlikely to mediate physical interactions with integrins. These results, together with the proteomics identification of basement membrane (BM) proteins as potential ligands for type IIa RPTPs, suggest a complex network of protein interactions in the extracellular space that may mediate Lar function and/or signaling in muscle tissue.


  • Organizational Affiliation

    Department of Cell and Molecular Biology and Biochemistry, University of Missouri-Kansas City, Kansas City, MO, United States of America.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Receptor-type tyrosine-protein phosphatase delta314Homo sapiensMutation(s): 0 
Gene Names: PTPRD
EC: 3.1.3.48
UniProt & NIH Common Fund Data Resources
Find proteins for P23468 (Homo sapiens)
Explore P23468 
Go to UniProtKB:  P23468
PHAROS:  P23468
GTEx:  ENSG00000153707 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP23468
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
B [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.77 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.198 
  • Space Group: I 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 95.06α = 90
b = 34.57β = 90.334
c = 109.199γ = 90
Software Package:
Software NamePurpose
PHENIXphasing
PHENIXrefinement
MOSFLMdata reduction
Aimlessdata scaling
SERGUIdata collection

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIH/NIAMS)United StatesR21AR066264

Revision History  (Full details and data files)

  • Version 1.0: 2021-05-26
    Type: Initial release
  • Version 1.1: 2022-06-22
    Changes: Database references
  • Version 1.2: 2024-04-03
    Changes: Data collection, Refinement description