1RDH

CRYSTALLOGRAPHIC ANALYSES OF AN ACTIVE HIV-1 RIBONUCLEASE H DOMAIN SHOW STRUCTURAL FEATURES THAT DISTINGUISH IT FROM THE INACTIVE FORM

X-RAY DIFFRACTION

---

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.75	55.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.03	α = 90
b = 52.03	β = 90
c = 113.92	γ = 120

Symmetry
Space Group	P 31

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1

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		2.8	20	2	8147			0.215

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	16.7
p_staggered_tor	10.8
p_scangle_it	2.899
p_planar_tor	2.5
p_scbond_it	1.763
p_mcangle_it	1.699
p_mcbond_it	0.995
p_chiral_restr	0.383
p_multtor_nbd	0.264
p_xhyhbond_nbd	0.249
p_singtor_nbd	0.229
p_planar_d	0.054
p_angle_d	0.052
p_bond_d	0.026
p_plane_restr	0.018
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	254
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
PROLSQ	refinement