Table 1. Structural statistics RBM5 OCRE and OCRE/SmN complex.

	OCRE	OCRE + SmN
NMR distance and dihedral restraints
Distance restraints
Total NOE	1171	1127
Intra-residue	220	419
Inter-residue
Sequential (|i-j| = 1)	292	118
Medium-range (|i-j| < 4)	156	114
Long-range (|i-j > 5)	503	329
Hydrogen bonds	20	11
Protein-peptide intermolecular	N/A	109
Dihedral angle restraints
ϕ	47	51
ψ	51	51
Structure statistics
Violations (mean and s.d.)
Distance restraints (>0.2 Å)	0.685 ± 0.363	0.324 ± 0.111
Dihedral angle restraints (>5 °)	0 ± 0	0 ± 0
Max. distance restraint violation (Å)	0.657 ± 0.470	0.587 ± 0.142
Max. dihedral angle restraint violation (°)	0	0
Deviations from idealized geometry
Bond lengths (Å)	0.0038 ± 0.0002	0.0046 ± 0.0001
Bond angles (°)	0.444 ± 0.026	0.616 ± 0.015
Impropers (°)	1.230 ± 0.0681	1.737 ± 0.00889
Average pairwise r.m.s.d.* (Å)
Heavy	0.72 ± 0.05	0.71 ± 0.10
Backbone	0.38 ± 0.07	0.38 ± 0.09

^∗Pairwise r.m.s.d. was calculated among 10 refined structures for residues 455-508 (RBM5 OCRE) and 221-229 (SmN) after water refinement.