2OQF

Structure of a synthetic, non-natural analogue of RNase A: [N71K(Ade), D83A]RNase A

X-RAY DIFFRACTION

---

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 37.578	α = 85.26
b = 50.534	β = 74.31
c = 62.863	γ = 82.7

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	77	CCD	MARMOSAIC 300 mm CCD		2006-08-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID		APS	22-ID

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	2.3	50					19122

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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 2NUI	2.3	20	19122	17142	1958	97.56	0.23555	0.22927	0.2912	RANDOM	17.489

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]
1.72	0.02	1.34	-1.78	1.1	-0.86

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.479
r_dihedral_angle_3_deg	13.99
r_dihedral_angle_4_deg	10.674
r_dihedral_angle_1_deg	6.058
r_angle_refined_deg	1.214
r_scangle_it	0.907
r_angle_other_deg	0.752
r_scbond_it	0.595
r_mcangle_it	0.381
r_mcbond_it	0.328
r_nbd_refined	0.189
r_nbd_other	0.188
r_nbtor_refined	0.182
r_xyhbond_nbd_refined	0.153
r_symmetry_vdw_other	0.146
r_symmetry_hbond_refined	0.144
r_symmetry_vdw_refined	0.096
r_nbtor_other	0.085
r_chiral_restr	0.065
r_mcbond_other	0.045
r_bond_refined_d	0.007
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3818
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data scaling