1T2H

Y81W mutant of RNase Sa from Streptomyces aureofaciens

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.4	295	ammonium sulfate, disodium phosphate, monosodium phosphate, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.3	46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.206	α = 90
b = 64.309	β = 90
c = 77.666	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	100	IMAGE PLATE	MARRESEARCH		2003-10-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE BW7A	0.812	EMBL/DESY, HAMBURG	BW7A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	33.3	99.6	0.047	34.5	6.5		103514			10

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1	1.01	97.7		0.165	10.2	4.5	4121

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 1rgg	1	33	98348	5166	99.56	0.14631	0.14524	0.16593	RANDOM	8.056

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]
0.13			-0.33		0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	7.078
r_sphericity_free	5.766
r_sphericity_bonded	4.166
r_scangle_it	2.912
r_scbond_it	2.068
r_mcangle_it	1.804
r_angle_refined_deg	1.478
r_mcbond_it	1.179
r_rigid_bond_restr	0.932
r_angle_other_deg	0.874
r_symmetry_vdw_other	0.307
r_nbd_other	0.263
r_nbd_refined	0.233
r_xyhbond_nbd_refined	0.17
r_symmetry_vdw_refined	0.147
r_symmetry_hbond_refined	0.145
r_chiral_restr	0.091
r_nbtor_other	0.083
r_gen_planes_other	0.011
r_bond_refined_d	0.01
r_gen_planes_refined	0.009
r_bond_other_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1686
Nucleic Acid Atoms
Solvent Atoms	589
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing