Table 1. Structural statistics for the ensemble of 20 NMR structures of MapZ_extra1 (PDB code 2ND9) and MapZ_extra2 (PDB code 2NDA).

	MapZextra1	MapZextra2
NMR distance and dihedral constraints
Distance constraints
Total unambiguous NOE restraints	3,400	2,520
Intra-residue	1,033	903
Inter-residue	2,367	1,617
Sequential (|i−j|=1)	668	468
Medium range (|i−j|≤5)	858	491
Long range (|i−j|>5)	841	658
Intermolecular	0	0
Total ambiguous NOE restraints	832	647
Hydrogen bonds	0	0
Total dihedral angle restraints	202	160
Phi	101	80
Psi	101	80
Structure statisticsa
Violations (mean and s.d.)
Distance constraints (Å)	0.0759±0.0053	0.0496±0.0009
Dihedral angle constraints (°)	2.74±0.0260	3.30±0.0394
Maximum dihedral angle violation (°)	4.199	25.761
Maximum distance constraint violation (Å)	2.17	0.613
Deviations from idealized geometry
Bond lengths (Å)	0.0118±0.0001	0.0074±0.0001
Bond angles (°)	1.0142±0.0106	0.7572±0.0094
Impropers (°)	2.1571±0.0481	1.8049±0.038
Average pairwise r.m.s.d.b (Å)
Heavy	0.46±0.06	0.40±0.05
Backbone	0.13±0.04	0.14±0.03

NOE, nuclear Overhauser effect; r.m.s.d., root mean squared deviation.

^aPairwise deviations were calculated among 20 refined structures.

^bThese values were calculated on residues 199–312 for MapZ_extra1 and 362–453 for MapZ_extra2.