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

Karen Manalastas-Cantos.

SASDJ42 – Pentameric assembly of condensin complex subunits 1 and 2 (Ycs4-Brn1L-Brn1C) with subunits of the SMC hinge domain-containing protein (Smc4hd)

Condensin complex subunit 1
Condensin complex subunit 2, 225-418
Condensin complex subunit 2, 776-898
SMC hinge domain-containing protein, 263-466
SMC hinge domain-containing protein, 1367-1542
MWI(0) 197 kDa
MWexpected 215 kDa
VPorod 355 nm3
log I(s) 2.00×104 2.00×103 2.00×102 2.00×101
Condensin complex subunit 1 Condensin complex subunit 2, 225-418 Condensin complex subunit 2, 776-898 SMC hinge domain-containing protein, 263-466 SMC hinge domain-containing protein, 1367-1542 small angle scattering data  s, nm-1
ln I(s)
Condensin complex subunit 1 Condensin complex subunit 2, 225-418 Condensin complex subunit 2, 776-898 SMC hinge domain-containing protein, 263-466 SMC hinge domain-containing protein, 1367-1542 Guinier plot ln 2.00×104 Rg: 5.1 nm 0 (5.1 nm)-2 s2
(sRg)2I(s)/I(0)
Condensin complex subunit 1 Condensin complex subunit 2, 225-418 Condensin complex subunit 2, 776-898 SMC hinge domain-containing protein, 263-466 SMC hinge domain-containing protein, 1367-1542 Kratky plot 1.104 0 3 sRg
p(r)
Condensin complex subunit 1 Condensin complex subunit 2, 225-418 Condensin complex subunit 2, 776-898 SMC hinge domain-containing protein, 263-466 SMC hinge domain-containing protein, 1367-1542 pair distance distribution function Rg: 5.2 nm 0 Dmax: 17.9 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Condensin complex subunit 1 Condensin complex subunit 2, 225-418 Condensin complex subunit 2, 776-898 SMC hinge domain-containing protein, 263-466 SMC hinge domain-containing protein, 1367-1542 MONSA model

log I(s)
 s, nm-1
Condensin complex subunit 1 Condensin complex subunit 2, 225-418 Condensin complex subunit 2, 776-898 SMC hinge domain-containing protein, 263-466 SMC hinge domain-containing protein, 1367-1542 CORAL model

Synchrotron SAXS data from solutions of the condensin Ycs4-Brn1L-Brn1C complex bound to subunits of Smc4hd 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). One solute concentration of 0.50 mg/ml was 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.

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, 225-418 (Brn1L)
Mol. type   Protein
Organism   Chaetomium thermophilum
Olig. state   Monomer
Mon. MW   21.2 kDa
 
UniProt   G0SBJ6 (225-418)
Sequence   FASTA
 
Condensin complex subunit 2, 776-898 (Brn1C)
Mol. type   Protein
Organism   Chaetomium thermophilum
Olig. state   Monomer
Mon. MW   14.0 kDa
 
UniProt   G0SBJ6 (776-898)
Sequence   FASTA
 
SMC hinge domain-containing protein, 263-466 (Smc4hd, 263-466)
Mol. type   Protein
Organism   Chaetomium thermophilum
Olig. state   Monomer
Mon. MW   22.4 kDa
 
UniProt   G0S2G2 (263-466)
Sequence   FASTA
 
SMC hinge domain-containing protein, 1367-1542 (Smc4hd, 1367-1542)
Mol. type   Protein
Organism   Chaetomium thermophilum
Olig. state   Monomer
Mon. MW   20.0 kDa
 
UniProt   G0S2G2 (1367-1542)
Sequence   FASTA
 
PDB ID   6QJ4