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 
  • R-Value Observed: 0.222 

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
  • Primary Citation of Related Structures:  
    5BO1

  • 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 respiratory airways depends on secretory cells (club and goblet) and ciliated cells to produce and transport mucus ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein jagged-1A, B150Homo sapiensMutation(s): 0 
Gene Names: JAG1JAGL1
UniProt & NIH Common Fund Data Resources
Find proteins for P78504 (Homo sapiens)
Explore P78504 
Go to UniProtKB:  P78504
PHAROS:  P78504
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Fab heavy chainC [auth H], D [auth I]219Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Fab light chainE [auth L], F [auth M]214Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
G [auth A], H [auth B]GLYCEROL
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 
  • R-Value Observed: 0.222 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.258α = 90
b = 80.978β = 94.39
c = 155.616γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
Aimlessdata scaling
PHENIXphasing
iMOSFLMdata reduction

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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