Table 1.

Statistical parameters for the 20 NMR structures of the T. Thermophilic RNase H* intermediate mimic.

NMR distance and dihedral constraints
Total NOE	2499
Intra residues NOE	744
Sequential NOE (|i-j|=1)	602
Short-range NOE (|i-j|≤4)	572
Long-range NOE (|i-j|≥5)	581
H-bonds	63
Dihedral angles	126
Structure statistics
Violations (mean ± s.d.)
NOE (all)	0.048 ± 0.002
Dihedral angle (°)	0.35 ± 0.03
Maximum distance restraint violations (Å)	0.3
Maximum angle restraint violations (°)	3.0
Deviations from idealized geometry
Bonds (Å)	0.0057 ± 0.0005
Angles (°)	0.71 ± 0.04
Impropers (°)	0.55 ± 0.04
Average pairwise r.m.s. deviation (Å)
Backbone atoms	0.51
All heavy atoms	0.84
Ramachandran map statistics (%)
Most favored	Allowed	Generally allowed	Disallowed
72.8 ± 1.0	21.2 ± 1.2	4.9 ± 0.5	1.1 ± 0.0