2NUI

X-ray Structure of synthetic [D83A]RNase A

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1IZP	PDB entry 1IZP

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.89		0.1 M Bis-Tris, 1.0 M ammonium sulfate, 1.5 M NaCl, pH 5.89, Drop 1:1 well:protein solution in H2O, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.71	54.54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.59	α = 90
b = 63.59	β = 90
c = 63.365	γ = 120

Symmetry
Space Group	P 32 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARMOSAIC 300 mm CCD	ADJUSTABLE FOCUSING MIRRORS	2006-07-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	0.97934	APS	23-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.05	20					59512

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1IZP	1.1	20	56514	2998	98.45	0.17773	0.17693	0.19319	RANDOM	14.452

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]
0.21	0.11		0.21		-0.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.234
r_dihedral_angle_4_deg	20.319
r_dihedral_angle_3_deg	12.098
r_dihedral_angle_1_deg	6.375
r_sphericity_bonded	5.058
r_scangle_it	3.101
r_scbond_it	2.377
r_mcangle_it	2.146
r_angle_refined_deg	1.625
r_mcbond_it	1.458
r_rigid_bond_restr	1.422
r_nbtor_refined	0.308
r_nbd_refined	0.212
r_symmetry_vdw_refined	0.172
r_xyhbond_nbd_refined	0.146
r_symmetry_hbond_refined	0.136
r_chiral_restr	0.101
r_bond_refined_d	0.014
r_gen_planes_refined	0.009
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_sphericity_free

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	974
Nucleic Acid Atoms
Solvent Atoms	155
Heterogen Atoms	17

Software

Software
Software Name	Purpose
REFMAC	refinement