Experiment: 3ORC

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	293	COCRYSTALS WERE OBTAINED BY MIXING A 1.5 MOLAR EXCESS OF THE 7BP DNA FRAGMENT WITH CRO K56-[DGEVK], COMBINING WITH AN EQUAL VOLUME OF PRECIPITANT BUFFER (140MM AMMONIUM ACETATE, 31% PEG 3350, 100MM ACETATE BUFFER PH 4.6), THEN EQUILIBRATING AGAINST THE PRECIPITANT BUFFER VIA THE HANGING-DROP METHOD AT ROOM TEMPERATURE., vapor diffusion - hanging drop, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3	48.45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.72	α = 90
b = 60.66	β = 112.7
c = 45.72	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	295	AREA DETECTOR	SDMS	COLLIMATOR	1993-02-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	3	20	99.7	0.053		5.3		2452			51.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 1ORC	3	20	13041	13041	2452		99.7

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]

RMS Deviations
Key	Refinement Restraint Deviation
t_dihedral_angle_d	19.55
t_angle_deg	2.656
t_it	2.548
t_nbd	0.018
t_bond_d	0.015
t_gen_planes	0.013
t_trig_c_planes	0.006
t_incorr_chiral_ct
t_pseud_angle

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	501
Nucleic Acid Atoms	322
Solvent Atoms	3
Heterogen Atoms

Software

Software
Software Name	Purpose
EDPDB	model building
TNT	refinement
SDMS	data reduction
SDMS	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.