Experiment: 2R0P

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2R0C	PDB entry 2R0C

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.4	298	1.5 microliters of RebC (9 mg/mL in 150 mM NaCl, 10% glycerol, 25 mM HEPES pH 7.5) was incubated with 0.35 microliters of guanidine-HCl for 30 seconds, followed by addition of 1.5 microliters of precipitant solution (19% PEG-8000, 0.1 M HEPES pH 7.4), without mixing, at room temperature and sealed over a precipitant well solution. Immediately after set up, crystal trays were placed on a gel shaker and then, after 12 hours, transferred to a storage space in vibration-isolation. A crystal was then soaked in 19% PEG-8000, 0.1 M HEPES pH 7.4, and 1 mM K252c for 11 days. The crystal was then soaked for 5 seconds in a cryogenic solution containing 19% PEG-8000, 0.1 M HEPES pH 7.4, 20% glycerol, and 1 mM K252c and then flash-frozen in liquid nitrogen., VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.094	α = 90
b = 77.509	β = 108.85
c = 64.652	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	141.4	CCD	ADSC QUANTUM 315		2007-03-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-C	0.9795	APS	24-ID-C

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	2.1	50	91.9	0.053	33.7	6.5	31693	31693

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)
	2.1	2.18	53.8		0.291	3.2		1854

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	Rigid Body Refinement	PDB entry 2R0C	2.1	50	31676	31676	1604	91.8	0.2188	0.2549	RANDOM	56.3

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
c_angle_deg	1.24921
c_bond_d	0.006526

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3910
Nucleic Acid Atoms
Solvent Atoms	181
Heterogen Atoms	78

Software

Software
Software Name	Purpose
ADSC	data collection
CNS	refinement
DENZO	data reduction
SCALEPACK	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 R01GM157729.