Self-Assembling Supramolecular Nanostructures Constructed from de Novo Extender Protein Nanobuilding Blocks.

Kobayashi N, Inano K, Sasahara K, Sato T, Miyazawa K, Fukuma T, Hecht MH, Song C, Murata K, Arai R, ACS Synth Biol 7(5):1381-1394 (2018) Europe PMC

SASDD56 – Artificially designed de novo protein esPN-Block (FL4) heterocomplex, e1s2 (FL4)

stopper PN-Block (WA20)
extender PN-Block (FL4)
MWI(0) 41 kDa
MWexpected 52 kDa
log I(s) 2.48×10-2 2.48×10-3 2.48×10-4 2.48×10-5
stopper PN-Block (WA20) extender PN-Block (FL4) small angle scattering data  s, nm-1
ln I(s)
stopper PN-Block (WA20) extender PN-Block (FL4) Guinier plot ln 2.48×10-2 Rg: 3.3 nm 0 (3.3 nm)-2 s2
(sRg)2I(s)/I(0)
stopper PN-Block (WA20) extender PN-Block (FL4) Kratky plot 1.104 0 3 sRg
p(r)
stopper PN-Block (WA20) extender PN-Block (FL4) pair distance distribution function Rg: 3.5 nm 0 Dmax: 12 nm

Data validation


Fits and models


log I(s)
 s, nm-1
stopper PN-Block (WA20) extender PN-Block (FL4) DAMMIN model

log I(s)
 s, nm-1
stopper PN-Block (WA20) extender PN-Block (FL4) OTHER model
stopper PN-Block (WA20) extender PN-Block (FL4) OTHER model

log I(s)
 s, nm-1
stopper PN-Block (WA20) extender PN-Block (FL4) MULTIFOXS model
stopper PN-Block (WA20) extender PN-Block (FL4) MULTIFOXS model
stopper PN-Block (WA20) extender PN-Block (FL4) MULTIFOXS model
stopper PN-Block (WA20) extender PN-Block (FL4) MULTIFOXS model
stopper PN-Block (WA20) extender PN-Block (FL4) MULTIFOXS model

Synchrotron SAXS data from solutions of an artificially designed de novo protein, esPN-Block (FL4) heterocomplex e1s2 (FL4), in 20 mM HEPES, 100 mM NaCl, 200 mM ArgHCl, 10% v/v glycerol, pH 7.5 were collected on the BL-10C beam line at the Photon Factory (PF), High Energy Acceleration Research Organization (KEK; Tsukuba, Japan) using a Pilatus 2M detector at a sample-detector distance of 1.1 m and at a wavelength of λ = 0.1488 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 3.50 mg/ml was measured at 20°C. 30 successive 5 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.

Storage temperature = UNKNOWN

stopper PN-Block (WA20) (sPN-Block (WA20))
Mol. type   Protein
Organism   de novo protein
Olig. state   Dimer
Mon. MW   12.5 kDa
Sequence   FASTA
 
extender PN-Block (FL4) (ePN-Block (FL4))
Mol. type   Protein
Organism   de novo protein
Olig. state   Monomer
Mon. MW   26.9 kDa
Sequence   FASTA
 
PDB ID   3VJF
 
PDB ID   3VJF
 
PDB ID   3VJF
 
PDB ID   3VJF
 
PDB ID   3VJF
 
PDB ID   3VJF