Table 1. Statistics of data and structure refinement.

	FOXP3/DNA
Data collection
Space group	P21212
Cell dimensions
a, b, c (Å)	81.43, 84.84, 68.31
α, β, γ (°)	90.00, 90.00, 90.00
Resolution (Å)	50.00–3.40 (3.46–3.40)
Rsym or Rmerge	0.211 (0.312)
I / σI	8.65 (3.12)
Completeness (%)	93.9 (61.4)
Redundancy	5.4 (2.6)
Refinement
Resolution (Å)	44.54–3.40
No. of reflections	5971
Rwork/Rfree	0.21/0.26
No. of atoms
Protein	1388
DNA	855
B-factors
Protein	66.60
DNA	68.45
R.M.S. deviations
Bond lengths (Å)	0.01
Bond angles (°)	1.70