Solution structure and flexibility of the condensin HEAT-repeat subunit Ycg1.

Manalastas-Cantos K, Kschonsak M, Haering CH, Svergun DI, J Biol Chem 294(37):13822-13829 (2019) Europe PMC

SASDFD4 – Condensin complex subunit 3-like protein,Ycg1, bound to condensin complex subunit 2, Brn1 (Ycg1-Brn1)

Condensin complex subunit 3-like protein
Condensin complex subunit 2
MWI(0) 122 kDa
MWexpected 125 kDa
VPorod 230 nm3
log I(s) 9.64×103 9.64×102 9.64×101 9.64×100
Condensin complex subunit 3-like protein Condensin complex subunit 2 small angle scattering data  s, nm-1
ln I(s)
Condensin complex subunit 3-like protein Condensin complex subunit 2 Guinier plot ln 9.64×103 Rg: 4.3 nm 0 (4.3 nm)-2 s2
(sRg)2I(s)/I(0)
Condensin complex subunit 3-like protein Condensin complex subunit 2 Kratky plot 1.104 0 3 sRg
p(r)
Condensin complex subunit 3-like protein Condensin complex subunit 2 pair distance distribution function Rg: 4.2 nm 0 Dmax: 13.7 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Condensin complex subunit 3-like protein Condensin complex subunit 2 DAMMIF model

log I(s)
 s, nm-1
Condensin complex subunit 3-like protein Condensin complex subunit 2 SREFLEX model

Synchrotron SAXS data from solutions of the Ycg1-Brn1 complex in 25 mM Tris 300 mM NaCl 1mM DTT, pH 7.5 were collected on the EMBL P12 beam line at PETRA III (Hamburg, Germany) using a Pilatus 2M detector at a sample-detector distance of 4 m and at a wavelength of λ = 0.124 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Solute concentrations ranging between 0.5 and 5 mg/ml were measured at 10°C. 20 successive 0.050 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. The low angle data collected at lower concentration were merged with the highest concentration high angle data to yield the final composite scattering curve.

Condensin complex subunit 3-like protein (Ycg1)
Mol. type   Protein
Organism   Chaetomium thermophilum
Olig. state   Monomer
Mon. MW   108.3 kDa
 
UniProt   G0SHK2 (24-1006)
Sequence   FASTA
 
Condensin complex subunit 2 (Brn1)
Mol. type   Protein
Organism   Chaetomium thermophilum
Olig. state   Monomer
Mon. MW   17 kDa
 
UniProt   G0SBJ6 (515-634)
Sequence   FASTA
 
PDB ID   5OQQ