Table 1.

Structural Statistics of the 20 Lowest Energy Structures for SRP2.

NOE Constraints	Number
Total	224
Intra-residue	106
Sequential	62
Medium range (i–j = 5)	17
Long range (i–j = 5)	9
Disulfide bonds	2
Hydrogen bonds	8
Dihedral Constraints	20
Constraints/residue	8.96
Pairwise R.M.S.D. to Mean structure (residues 1–25)
Backbone atoms (Å)	2.45±0.48
All nonhydrogen atoms (Å)	3.13±0.47
Pairwise R.M.S.D. to Mean structure (residues 8–21)
Backbone atoms (Å)	0.87±0.21
All nonhydrogen atoms (Å)	1.88±0.62
Percentage of Residues in Regions of f-	Space
Allowed	72.1%
Additionally Allowed	23.2%
Generously Allowed	3.8%
Disallowed	0.9%