5CZX

Crystal structure of Notch3 NRR in complex with 20358 Fab


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Characterization of activating mutations of NOTCH3 in T-cell acute lymphoblastic leukemia and anti-leukemic activity of NOTCH3 inhibitory antibodies.

Bernasconi-Elias, P.Hu, T.Jenkins, D.Firestone, B.Gans, S.Kurth, E.Capodieci, P.Deplazes-Lauber, J.Petropoulos, K.Thiel, P.Ponsel, D.Hee Choi, S.LeMotte, P.London, A.Goetcshkes, M.Nolin, E.Jones, M.D.Slocum, K.Kluk, M.J.Weinstock, D.M.Christodoulou, A.Weinberg, O.Jaehrling, J.Ettenberg, S.A.Buckler, A.Blacklow, S.C.Aster, J.C.Fryer, C.J.

(2016) Oncogene 35: 6077-6086

  • DOI: 10.1038/onc.2016.133
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Notch receptors have been implicated as oncogenic drivers in several cancers, the most notable example being NOTCH1 in T-cell acute lymphoblastic leukemia (T-ALL). To characterize the role of activated NOTCH3 in cancer, we generated an antibody that ...

    Notch receptors have been implicated as oncogenic drivers in several cancers, the most notable example being NOTCH1 in T-cell acute lymphoblastic leukemia (T-ALL). To characterize the role of activated NOTCH3 in cancer, we generated an antibody that detects the neo-epitope created upon gamma-secretase cleavage of NOTCH3 to release its intracellular domain (ICD3), and sequenced the negative regulatory region (NRR) and PEST (proline, glutamate, serine, threonine) domain coding regions of NOTCH3 in a panel of cell lines. We also characterize NOTCH3 tumor-associated mutations that result in activation of signaling and report new inhibitory antibodies. We determined the structural basis for receptor inhibition by obtaining the first co-crystal structure of a NOTCH3 antibody with the NRR protein and defined two distinct epitopes for NRR antibodies. The antibodies exhibit potent anti-leukemic activity in cell lines and tumor xenografts harboring NOTCH3 activating mutations. Screening of primary T-ALL samples reveals that 2 of 40 tumors examined show active NOTCH3 signaling. We also identified evidence of NOTCH3 activation in 12 of 24 patient-derived orthotopic xenograft models, 2 of which exhibit activation of NOTCH3 without activation of NOTCH1. Our studies provide additional insights into NOTCH3 activation and offer a path forward for identification of cancers that are likely to respond to therapy with NOTCH3 selective inhibitory antibodies.


    Organizational Affiliation

    Developmental and Molecular Pathways, Novartis Institutes for Biomedical Research, Cambridge, MA, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Neurogenic locus notch homolog protein 3
A, B
271Homo sapiensGene Names: NOTCH3
Find proteins for Q9UM47 (Homo sapiens)
Go to Gene View: NOTCH3
Go to UniProtKB:  Q9UM47
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
20358 Fab heavy chain
C, H
226N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
20358 Fab light chain
D, L
214N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
C, H, L
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A, B, C, D, H, L
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 88.340α = 90.00
b = 123.860β = 90.00
c = 150.570γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
HKL-2000data scaling
PHENIXphasing
HKL-2000data reduction
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-06-01
    Type: Initial release
  • Version 1.1: 2016-12-07
    Type: Database references