1RN4

HIS92ALA MUTATION IN RIBONUCLEASE T1 INDUCES SEGMENTAL FLEXIBILITY. AN X-RAY STUDY

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
1.77	30.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.76	α = 90
b = 55.13	β = 90
c = 43.29	γ = 90

Symmetry
Space Group	P 21 21 21

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)	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	10	6258			0.148

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	25
p_staggered_tor	17
p_scangle_it	6.5
p_scbond_it	5.1
p_mcangle_it	2.8
p_mcbond_it	2.1
p_planar_tor	1.8
p_chiral_restr	0.2
p_singtor_nbd	0.14
p_xhyhbond_nbd	0.14
p_multtor_nbd	0.13
p_angle_d	0.06
p_planar_d	0.06
p_bond_d	0.016
p_plane_restr	0.01
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	758
Nucleic Acid Atoms
Solvent Atoms	82
Heterogen Atoms	5

Software

Software
Software Name	Purpose
PROFFT	refinement