Structural basis for therapeutic antibody binding to CCN2 and its mechanisms on TGF-β family signaling

Haben Gabir.

SASDV79 – Mouse Central Communication Network 2 (CCN2) in complex with anti-CCN2 F(ab) antibody 37-45-MH1

Cellular communication network factor 2
anti-CCN2 37-45-MH1 F(ab) antibody
MWexperimental 68 kDa
MWexpected 85 kDa
VPorod 95 nm3
log I(s) 7.82×10-1 7.82×10-2 7.82×10-3 7.82×10-4
Cellular communication network factor 2 anti-CCN2 37-45-MH1 F(ab) antibody small angle scattering data  s, nm-1
ln I(s)
Cellular communication network factor 2 anti-CCN2 37-45-MH1 F(ab) antibody Guinier plot ln 7.82×10-1 Rg: 3.3 nm 0 (3.3 nm)-2 s2
(sRg)2I(s)/I(0)
Cellular communication network factor 2 anti-CCN2 37-45-MH1 F(ab) antibody Kratky plot 1.104 0 3 sRg
p(r)
Cellular communication network factor 2 anti-CCN2 37-45-MH1 F(ab) antibody pair distance distribution function Rg: 3.4 nm 0 Dmax: 11.9 nm

Data validation


Fits and models


log I(s)
 s, nm-1

Synchrotron SAXS data from solutions of Mouse Central Communication Network 2 (CCN2) in complex with anti-CCN2 F(ab) antibody 37-45-MH1 in 50 mM Tris pH 7.5, 200 mM NaCl, pH 7.5 were collected on the B21 beam line at the Diamond Light Source storage ring (Didcot, UK) using a Eiger 4M detector at a sample-detector distance of 3.7 m and at a wavelength of λ = 0.09537 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size-exclusion chromatography (SEC) SAS was employed. The SEC parameters were as follows: A 50.00 μl sample at 5 mg/ml was injected at a 1.60 ml/min flow rate onto a column at 15°C. 599 successive 3 second frames were collected. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

SEC column = UNKNOWN

Cellular communication network factor 2 (CCN2)
Mol. type   Protein
Olig. state   Monomer
Mon. MW   36.1 kDa
 
UniProt   P29268 (26-348)
Sequence   FASTA
 
anti-CCN2 37-45-MH1 F(ab) antibody (37-45-MH1)
Mol. type   Protein
Olig. state   Monomer
Mon. MW   48.8 kDa
Sequence   FASTA