5BO1

Crystal structure of a human Jag1 fragment in complex with an anti-Jag1 Fab


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Therapeutic antibodies reveal Notch control of transdifferentiation in the adult lung.

Lafkas, D.Shelton, A.Chiu, C.de Leon Boenig, G.Chen, Y.Stawicki, S.S.Siltanen, C.Reichelt, M.Zhou, M.Wu, X.Eastham-Anderson, J.Moore, H.Roose-Girma, M.Chinn, Y.Hang, J.Q.Warming, S.Egen, J.Lee, W.P.Austin, C.Wu, Y.Payandeh, J.Lowe, J.B.Siebel, C.W.

(2015) Nature 528: 127-131

  • DOI: 10.1038/nature15715

  • PubMed Abstract: 
  • Prevailing dogma holds that cell-cell communication through Notch ligands and receptors determines binary cell fate decisions during progenitor cell divisions, with differentiated lineages remaining fixed. Mucociliary clearance in mammalian respirato ...

    Prevailing dogma holds that cell-cell communication through Notch ligands and receptors determines binary cell fate decisions during progenitor cell divisions, with differentiated lineages remaining fixed. Mucociliary clearance in mammalian respiratory airways depends on secretory cells (club and goblet) and ciliated cells to produce and transport mucus. During development or repair, the closely related Jagged ligands (JAG1 and JAG2) induce Notch signalling to determine the fate of these lineages as they descend from a common proliferating progenitor. In contrast to such situations in which cell fate decisions are made in rapidly dividing populations, cells of the homeostatic adult airway epithelium are long-lived, and little is known about the role of active Notch signalling under such conditions. To disrupt Jagged signalling acutely in adult mammals, here we generate antibody antagonists that selectively target each Jagged paralogue, and determine a crystal structure that explains selectivity. We show that acute Jagged blockade induces a rapid and near-complete loss of club cells, with a concomitant gain in ciliated cells, under homeostatic conditions without increased cell death or division. Fate analyses demonstrate a direct conversion of club cells to ciliated cells without proliferation, meeting a conservative definition of direct transdifferentiation. Jagged inhibition also reversed goblet cell metaplasia in a preclinical asthma model, providing a therapeutic foundation. Our discovery that Jagged antagonism relieves a blockade of cell-to-cell conversion unveils unexpected plasticity, and establishes a model for Notch regulation of transdifferentiation.


    Organizational Affiliation

    Department of Discovery Oncology, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein jagged-1
A, B
150Homo sapiensGene Names: JAG1 (JAGL1)
Find proteins for P78504 (Homo sapiens)
Go to Gene View: JAG1
Go to UniProtKB:  P78504
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Fab heavy chain
H, I
219N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Fab light chain
L, M
214N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.220 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 53.258α = 90.00
b = 80.978β = 94.39
c = 155.616γ = 90.00
Software Package:
Software NamePurpose
PHENIXphasing
iMOSFLMdata reduction
BUSTERrefinement
Aimlessdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-11-18
    Type: Initial release
  • Version 1.1: 2015-12-02
    Type: Database references
  • Version 1.2: 2015-12-16
    Type: Database references