Table 4. SAXS data collection and scattering-derived parameters for EcMazE–DNA complexes.

	EcMazE1–50-‘a’	EcMazE-‘a’
Data collection parameters
Beam line	SWING	SWING
HPLC column	KW402.5–4F	KW402.5–4F
Wavelength (Å)	1.03	1.03
q range	0.012–0.299	0.012–0.331
Injected concentrations	90 μl at 7 mg/ml	90 μl at 8 mg/ml
Temperature (K)	283	283
Structural parameters
I(0) (from Guinier)	0.52 ± 0.30.10−2	0.24.10−3 ± 0.38.10−6
Rg (Å) (from Guinier)	25.51 ± 0.19	30.26 ± 0.07
I(0) (from p(r))	0.51 ± 0.10.10−2	0.24.10−3 ± 0.21.10−6
Rg (Å) (from p(r))	24.78 ± 0.06	30.96 ± 0.03
Dmax (Å)	71	91
Molecular mass determination
SAXSMoW (kDa)a	29.0	32.3
QR (kDa)a	28.1	30.2
Theoretical MM from sequence (kDa)	24.3	31.7
Model statistics
χ2	0.64	0.96
χ2free	0.92	1.15
RSAS (%)	0.9927	0.0126

^aFor the q range reported above in the table.