1T2I

T76W mutant of RNase Sa from Streptomyces aureofaciens

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2	293	ammonium sulfate, disodium phosphate, monosodium phosphate, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.8	32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 33.872	α = 90
b = 40.462	β = 90
c = 56.638	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 X31	1.096	EMBL/DESY, HAMBURG	X31

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	1.1	29	95.3	0.03	53.3	6.4		29254			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	1.11	90.2		0.18	8.7	5.2	705

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1rgg	1.1	29	29254	1560	95.34	0.1303	0.12839	0.13	0.16698	0.17	RANDOM	8.383

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]
0.12			-0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.77
r_sphericity_free	2.855
r_scangle_it	2.543
r_sphericity_bonded	2.271
r_scbond_it	1.79
r_angle_other_deg	1.73
r_mcangle_it	1.56
r_angle_refined_deg	1.428
r_mcbond_it	1.003
r_rigid_bond_restr	0.925
r_symmetry_vdw_other	0.298
r_nbd_other	0.246
r_nbd_refined	0.208
r_symmetry_vdw_refined	0.185
r_symmetry_hbond_refined	0.146
r_xyhbond_nbd_refined	0.142
r_nbtor_other	0.086
r_chiral_restr	0.084
r_gen_planes_other	0.014
r_bond_refined_d	0.01
r_gen_planes_refined	0.01
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	827
Nucleic Acid Atoms
Solvent Atoms	243
Heterogen Atoms

Software

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