1O0O

Ribonuclease A in complex with adenosine-2',5'-diphosphate

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	289	20mM Sodium citrate Buffer, 20% PEG 4000, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
1.67	25.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 99.852	α = 90
b = 32.528	β = 90.11
c = 72.383	γ = 90

Symmetry
Space Group	C 1 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	IMAGE PLATE	MARRESEARCH	Mirrors	2000-02-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 5.2R	1.00061	ELETTRA	5.2R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.2	30	92.1	0.038	30.9	14.1	67242	67242	0.01	-3	12.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.2	1.22	71.2		0.226		2.8	2545

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 1AFU	1.2	29.36	0.001	63814	63814	3421	92.9	0.19602	0.19431	0.19431	0.22824	RANDOM	14.68

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]
-0.11		-0.05	0.31		-0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	12.842
r_dihedral_angle_1_deg	4.136
r_scangle_it	3.54
r_sphericity_bonded	2.701
r_sphericity_free	2.409
r_scbond_it	2.345
r_mcangle_it	1.927
r_angle_refined_deg	1.661
r_rigid_bond_restr	1.337
r_mcbond_it	1.233
r_angle_other_deg	0.863
r_symmetry_hbond_refined	0.295
r_symmetry_vdw_other	0.279
r_xyhbond_nbd_refined	0.269
r_nbd_refined	0.25
r_symmetry_vdw_refined	0.235
r_xyhbond_nbd_other	0.231
r_nbd_other	0.222
r_nbtor_other	0.191
r_chiral_restr	0.092
r_bond_refined_d	0.011
r_gen_planes_refined	0.009
r_gen_planes_other	0.004
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1902
Nucleic Acid Atoms
Solvent Atoms	558
Heterogen Atoms	54

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
SCALEPACK	data scaling
CNS	phasing