Molecular flexibility of the condensin subunit Ycs4 is modulated by kleisin binding

Karen Manalastas-Cantos.

SASDJ22 – Condensin complex subunit 1 (Ycs4) bound to condensin complex subunit 2, 336-418 (Brn1S)

Condensin complex subunit 1
Condensin complex subunit 2, 336-418
MWI(0) 150 kDa
MWexpected 146 kDa
VPorod 279 nm3
log I(s) 1.54×104 1.54×103 1.54×102 1.54×101
Condensin complex subunit 1 Condensin complex subunit 2, 336-418 small angle scattering data  s, nm-1
ln I(s)
Condensin complex subunit 1 Condensin complex subunit 2, 336-418 Guinier plot ln 1.55×104 Rg: 5.0 nm 0 (5.0 nm)-2 s2
(sRg)2I(s)/I(0)
Condensin complex subunit 1 Condensin complex subunit 2, 336-418 Kratky plot 1.104 0 3 sRg
p(r)
Condensin complex subunit 1 Condensin complex subunit 2, 336-418 pair distance distribution function Rg: 5.0 nm 0 Dmax: 16.9 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Condensin complex subunit 1 Condensin complex subunit 2, 336-418 MONSA model

log I(s)
 s, nm-1
Condensin complex subunit 1 Condensin complex subunit 2, 336-418 SREFLEX model

Synchrotron SAXS data from solutions of the Ycs4-Brn1S complex in 25 mM Tris, 300 mM NaCl, 1mM DTT, pH 7.5 were collected on the EMBL P12 beam line at PETRA III (DESY, Hamburg, Germany) using a Pilatus 2M detector at a sample-detector distance of 3 m and at a wavelength of λ = 0.124 nm (I(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 20°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 1 (Ycs4)
Mol. type   Protein
Organism   Chaetomium thermophilum
Olig. state   Monomer
Mon. MW   137.0 kDa
 
UniProt   G0SB82 (3-1222)
Sequence   FASTA
 
Condensin complex subunit 2, 336-418 (Brn1S)
Mol. type   Protein
Organism   Chaetomium thermophilum
Olig. state   Monomer
Mon. MW   9.2 kDa
 
UniProt   G0SBJ6 (336-418)
Sequence   FASTA
 
PDB ID   6QJ3