2RNT

THREE-DIMENSIONAL STRUCTURE OF RIBONUCLEASE T1 COMPLEXED WITH GUANYLYL-2(PRIME),5(PRIME)-GUANOSINE AT 1.8 ANGSTROMS RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.44	α = 90
b = 50.9	β = 90
c = 40.43	γ = 90

Symmetry
Space Group	P 21 21 21

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		1.8	6	3	6511			0.149

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
p_orthonormal_tor	24.7
p_staggered_tor	16.3
p_scangle_it	2.423
p_planar_tor	1.7
p_scbond_it	1.597
p_mcangle_it	1.204
p_mcbond_it	0.728
p_chiral_restr	0.196
p_singtor_nbd	0.151
p_multtor_nbd	0.138
p_xhyhbond_nbd	0.133
p_angle_d	0.059
p_planar_d	0.053
p_bond_d	0.016
p_plane_restr	0.008
p_angle_deg
p_hb_or_metal_coord
p_xyhbond_nbd
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	781
Nucleic Acid Atoms
Solvent Atoms	107
Heterogen Atoms	73

Software

Software
Software Name	Purpose
PROLSQ	refinement