7T62

GPC2 HEP CT3 complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 21.0 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

CAR T cells targeting tumor-associated exons of glypican 2 regress neuroblastoma in mice.

Li, N.Torres, M.B.Spetz, M.R.Wang, R.Peng, L.Tian, M.Dower, C.M.Nguyen, R.Sun, M.Tai, C.H.de Val, N.Cachau, R.Wu, X.Hewitt, S.M.Kaplan, R.N.Khan, J.St Croix, B.Thiele, C.J.Ho, M.

(2021) Cell Rep Med 2: 100297-100297

  • DOI: 10.1016/j.xcrm.2021.100297
  • Primary Citation of Related Structures:  
    7T62

  • PubMed Abstract: 
  • Targeting solid tumors must overcome several major obstacles, in particular, the identification of elusive tumor-specific antigens. Here, we devise a strategy to help identify tumor-specific epitopes. Glypican 2 (GPC2) is overexpressed in neuroblastoma. Using RNA sequencing (RNA-seq) analysis, we show that exon 3 and exons 7-10 of GPC2 are expressed in cancer but are minimally expressed in normal tissues ...

    Targeting solid tumors must overcome several major obstacles, in particular, the identification of elusive tumor-specific antigens. Here, we devise a strategy to help identify tumor-specific epitopes. Glypican 2 (GPC2) is overexpressed in neuroblastoma. Using RNA sequencing (RNA-seq) analysis, we show that exon 3 and exons 7-10 of GPC2 are expressed in cancer but are minimally expressed in normal tissues. Accordingly, we discover a monoclonal antibody (CT3) that binds exons 3 and 10 and visualize the complex structure of CT3 and GPC2 by electron microscopy. The potential of this approach is exemplified by designing CT3-derived chimeric antigen receptor (CAR) T cells that regress neuroblastoma in mice. Genomic sequencing of T cells recovered from mice reveals the CAR integration sites that may contribute to CAR T cell proliferation and persistence. These studies demonstrate how RNA-seq data can be exploited to help identify tumor-associated exons that can be targeted by CAR T cell therapies.


    Organizational Affiliation

    Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glypican-2A561Homo sapiensMutation(s): 0 
Gene Names: GPC2
UniProt & NIH Common Fund Data Resources
Find proteins for Q8N158 (Homo sapiens)
Explore Q8N158 
Go to UniProtKB:  Q8N158
PHAROS:  Q8N158
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8N158
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
CT3B433Mus musculusMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 21.0 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)United StatesZ01 BC010891
National Institutes of Health/National Cancer Institute (NIH/NCI)United StatesCancer Moonshot Program

Revision History  (Full details and data files)

  • Version 1.0: 2021-12-22
    Type: Initial release