6IAP

structure of human NKp46 in complex with antibody NKp46-1 and NKp46-4

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.191 

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Literature

Multifunctional Natural Killer Cell Engagers Targeting NKp46 Trigger Protective Tumor Immunity.

Gauthier, L., Morel, A., Anceriz, N., Rossi, B., Blanchard-Alvarez, A., Grondin, G., Trichard, S., Cesari, C., Sapet, M., Bosco, F., Rispaud-Blanc, H., Guillot, F., Cornen, S., Roussel, A., Amigues, B., Habif, G., Caraguel, F., Arrufat, S., Remark, R., Romagne, F., Morel, Y., Narni-Mancinelli, E., Vivier, E.

(2019) Cell 177: 1701-1713.e16

  • DOI: 10.1016/j.cell.2019.04.041
  • Primary Citation of Related Structures:  
    6IAP, 6IAS

  • PubMed Abstract: 

    • Over the last decade, various new therapies have been developed to promote anti-tumor immunity. Despite interesting clinical results in hematological malignancies, the development of bispecific killer-cell-engager antibody formats directed against tumor cells and stimulating anti-tumor T cell immunity has proved challenging, mostly due to toxicity problems ...

    Over the last decade, various new therapies have been developed to promote anti-tumor immunity. Despite interesting clinical results in hematological malignancies, the development of bispecific killer-cell-engager antibody formats directed against tumor cells and stimulating anti-tumor T cell immunity has proved challenging, mostly due to toxicity problems. We report here the generation of trifunctional natural killer (NK) cell engagers (NKCEs), targeting two activating receptors, NKp46 and CD16, on NK cells and a tumor antigen on cancer cells. Trifunctional NKCEs were more potent in vitro than clinical therapeutic antibodies targeting the same tumor antigen. They had similar in vivo pharmacokinetics to full IgG antibodies and no off-target effects and efficiently controlled tumor growth in mouse models of solid and invasive tumors. Trifunctional NKCEs thus constitute a new generation of molecules for fighting cancer. VIDEO ABSTRACT.

    Organizational Affiliation: 

    Innate Pharma, Marseille, France; Aix Marseille Université, INSERM, CNRS, Centre d'Immunologie de Marseille-Luminy, Marseille, France; Service d'Immunologie, Marseille Immunopole, Hôpital de la Timone, Assistance Publique-Hôpitaux de Marseille, Marseille, France. Electronic address: vivier@ciml.univ-mrs.fr.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Natural cytotoxicity triggering receptor 1A182Homo sapiensMutation(s): 0 
Gene Names: NCR1, LY94
UniProt & NIH Common Fund Data Resources
Find proteins for O76036 (Homo sapiens)
Explore O76036 
Go to UniProtKB:  O76036
PHAROS:  O76036
GTEx:  ENSG00000189430
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Fab NKp46-4 light chainB [auth D]211synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Fab NKp46-4 heavy chainC [auth E]217synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Fab NKp46-1 heavy chainD [auth H]220synthetic constructMutation(s): 0 
Protein Feature View
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(by identity cutoff)  |  Structure
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Fab NKp46-1 light chainE [auth L]211synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.191 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.858α = 90
b = 73.827β = 90.57
c = 128.518γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
MOLREPphasing
PDB_EXTRACTdata extraction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-06-12
    Type: Initial release
  • Version 1.1: 2019-06-26
    Changes: Data collection, Database references