Experiment: 2RB1

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	184L

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.1	277	2.2M sodium-potassium phosphate, 0.05M beta-mercaptoethanol, 0.05M 2-hydroxyethyldisulfide, pH 7.1, vapor diffusion, hanging drop, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.79	55.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.487	α = 90
b = 60.487	β = 90
c = 97.136	γ = 120

Symmetry
Space Group	P 32 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	110	IMAGE PLATE	RIGAKU RAXIS IV		2006-10-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	1.56	52.41	99.4	0.074	14.8	5.2	29774	29774

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)
	1.56	1.62	100		0.632		5.4	2936

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		THROUGHOUT	184L	1.7	52.41	23066	23066	1143	99.24	0.193	0.193	0.191	0.23	RANDOM	18.094

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]
0.44	0.22		0.44		-0.66

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.406
r_dihedral_angle_4_deg	19.99
r_dihedral_angle_3_deg	11.74
r_dihedral_angle_1_deg	5.897
r_scangle_it	3.064
r_scbond_it	2.105
r_angle_refined_deg	1.234
r_mcangle_it	1.052
r_mcbond_it	0.682
r_nbtor_refined	0.303

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.406
r_dihedral_angle_4_deg	19.99
r_dihedral_angle_3_deg	11.74
r_dihedral_angle_1_deg	5.897
r_scangle_it	3.064
r_scbond_it	2.105
r_angle_refined_deg	1.234
r_mcangle_it	1.052
r_mcbond_it	0.682
r_nbtor_refined	0.303
r_symmetry_vdw_refined	0.236
r_nbd_refined	0.203
r_symmetry_hbond_refined	0.185
r_xyhbond_nbd_refined	0.142
r_chiral_restr	0.077
r_bond_refined_d	0.012
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1308
Nucleic Acid Atoms
Solvent Atoms	273
Heterogen Atoms	25

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
REFMAC	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 R01GM157729.