5L0Q

Crystal structure of the complex between ADAM10 D+C domain and a conformation specific mAb 8C7.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.76 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.205 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

An activated form of ADAM10 is tumor selective and regulates cancer stem-like cells and tumor growth.

Atapattu, L.Saha, N.Chheang, C.Eissman, M.F.Xu, K.Vail, M.E.Hii, L.Llerena, C.Liu, Z.Horvay, K.Abud, H.E.Kusebauch, U.Moritz, R.L.Ding, B.S.Cao, Z.Rafii, S.Ernst, M.Scott, A.M.Nikolov, D.B.Lackmann, M.Janes, P.W.

(2016) J Exp Med 213: 1741-1757

  • DOI: https://doi.org/10.1084/jem.20151095
  • Primary Citation of Related Structures:  
    5L0Q

  • PubMed Abstract: 

    The transmembrane metalloprotease ADAM10 sheds a range of cell surface proteins, including ligands and receptors of the Notch, Eph, and erbB families, thereby activating signaling pathways critical for tumor initiation and maintenance. ADAM10 is thus a promising therapeutic target. Although widely expressed, its activity is normally tightly regulated. We now report prevalence of an active form of ADAM10 in tumors compared with normal tissues, in mouse models and humans, identified by our conformation-specific antibody mAb 8C7. Structure/function experiments indicate mAb 8C7 binds an active conformation dependent on disulfide isomerization and oxidative conditions, common in tumors. Moreover, this active ADAM10 form marks cancer stem-like cells with active Notch signaling, known to mediate chemoresistance. Importantly, specific targeting of active ADAM10 with 8C7 inhibits Notch activity and tumor growth in mouse models, particularly regrowth after chemotherapy. Our results indicate targeted inhibition of active ADAM10 as a potential therapy for ADAM10-dependent tumor development and drug resistance.


  • Organizational Affiliation

    Cancer Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Disintegrin and metalloproteinase domain-containing protein 10
A, D
203Bos taurusMutation(s): 0 
Gene Names: ADAM10MADM
EC: 3.4.24.81
UniProt
Find proteins for Q10741 (Bos taurus)
Explore Q10741 
Go to UniProtKB:  Q10741
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ10741
Glycosylation
Glycosylation Sites: 1
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
mAb 8C7 light chain
B, E
214Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
mAb 8C7 heavy chain
C, F
222Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Glycosylation
Glycosylation Sites: 1
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
G [auth A],
N [auth C],
R [auth D],
X [auth F]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
H [auth A]
I [auth A]
J [auth A]
L [auth B]
M [auth B]
H [auth A],
I [auth A],
J [auth A],
L [auth B],
M [auth B],
O [auth C],
P [auth C],
Q [auth C],
S [auth D],
T [auth D],
V [auth E],
W [auth E],
Y [auth F]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
MG
Query on MG

Download Ideal Coordinates CCD File 
K [auth A],
U [auth D]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.76 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.326α = 90
b = 141.679β = 90
c = 268.08γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
SCALAdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-11-09
    Type: Initial release
  • Version 1.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Database references, Derived calculations, Structure summary
  • Version 1.2: 2023-10-04
    Changes: Data collection, Database references, Refinement description, Structure summary