Experiment: 2R1B

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	277	17% Peg 8000, 0.1 M Tris pH 8.5, 0.2 M MgCl2, 5 mM CaCl2, 0.5% beta-octyl-glucoside, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.65	53.64

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.122	α = 90
b = 39.26	β = 115.47
c = 85.41	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	103	CCD	MAR CCD 165 mm		2005-01-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 32-ID	1.000	APS	32-ID

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	1.72	19.9	92.1	0.054	25.9	8.2	49680	49680			22.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.72	1.76	73.1		0.355	0.355	3.1	3.5	2877

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1C4R	1.72	19.9	49679	45909	3770	100	0.19956	0.19956	0.19745	0.22474	RANDOM	26.719

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]
-1.48		-0.91	-0.17		0.86

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.397
r_dihedral_angle_4_deg	21.441
r_dihedral_angle_3_deg	14.345
r_dihedral_angle_1_deg	6.26
r_scangle_it	4.158
r_scbond_it	2.76
r_mcangle_it	1.725
r_angle_refined_deg	1.708
r_mcbond_it	1.24
r_symmetry_hbond_refined	0.443

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.397
r_dihedral_angle_4_deg	21.441
r_dihedral_angle_3_deg	14.345
r_dihedral_angle_1_deg	6.26
r_scangle_it	4.158
r_scbond_it	2.76
r_mcangle_it	1.725
r_angle_refined_deg	1.708
r_mcbond_it	1.24
r_symmetry_hbond_refined	0.443
r_nbtor_refined	0.295
r_symmetry_vdw_refined	0.253
r_nbd_refined	0.223
r_xyhbond_nbd_refined	0.166
r_chiral_restr	0.157
r_metal_ion_refined	0.055
r_bond_refined_d	0.023
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2980
Nucleic Acid Atoms
Solvent Atoms	353
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
CNS	refinement
MAR345	data collection
MOSFLM	data reduction
SCALA	data scaling
CNS	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.