Experiment: 4BAC

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		296	CRYSTALS WERE GROWN THROUGH REVERSE VAPOR DIFFUSION IN HANGING DROPS AT 23 C BY MIXING 1 UL IN-DNA COMPLEX SOLUTION (20 MM HEPES, PH 7.5, 500 MM NACL, 5 MM MGCL2, 2 MM TCEP AND 8% (W/V) GLYCEROL) WITH 1 UL RESERVOIR SOLUTION (50 MM NA CACODYLATE, PH 6.5, 100 MM MGCL2, 1 MM COCL3 AND 6% (V/V) ETHANOL).

Crystal Properties
Matthews coefficient	Solvent content
2.88	57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 160.617	α = 90
b = 160.617	β = 90
c = 125.092	γ = 90

Symmetry
Space Group	P 41 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARMOSAIC 225 mm CCD			M	SINGLE WAVELENGTH

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

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	3.26	30	98.8	0.11	14.6	6.3		25740		2	75.3

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	3.26	3.32	100		0.62	2	6.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 3L2R	3.263	29.141	0.13	24101	1223	92.66	0.1868	0.1847	0.2263

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]
9.9139			9.9139		-19.8278

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	21.72
f_angle_d	1.313
f_chiral_restr	0.073
f_bond_d	0.009
f_plane_restr	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4378
Nucleic Acid Atoms	1305
Solvent Atoms	3
Heterogen Atoms	3

Software

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

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.