1RHB

WATER DEPENDENT DOMAIN MOTION AND FLEXIBILITY IN RIBONUCLEASE A AND THE INVARIANT FEATURES IN ITS HYDRATION SHELL. AN X-RAY STUDY OF TWO LOW HUMIDITY CRYSTAL FORMS OF THE ENZYME

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.01	38.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 29.74	α = 90
b = 38.25	β = 112.66
c = 52.4	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

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

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		1.5	10	2	15326			0.173

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	18.4
p_staggered_tor	16.5
p_planar_tor	2.4
p_multtor_nbd	0.288
p_xhyhbond_nbd	0.178
p_singtor_nbd	0.164
p_planar_d	0.038
p_angle_d	0.034
p_bond_d	0.012
p_plane_restr	0.012
p_chiral_restr	0.005
p_angle_deg
p_hb_or_metal_coord
p_mcbond_it
p_mcangle_it
p_scbond_it
p_scangle_it
p_xyhbond_nbd
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	947
Nucleic Acid Atoms
Solvent Atoms	160
Heterogen Atoms

Software

Software
Software Name	Purpose
PROLSQ	refinement