Experiment: 3EKU

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2HF4	PDB ENTRY 2HF4

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.2	277	20% MPD, 0.1M sodium acetate, 0.1M NaCl, 0.02M CaCl2, pH 5.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K
2	VAPOR DIFFUSION, SITTING DROP	5.2	277	20% MPD, 0.1M sodium acetate, 0.1M NaCl, 0.02M CaCl2, pH 5.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 207.4	α = 90
b = 54.04	β = 98.96
c = 36.89	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	100	IMAGE PLATE	MAR scanner 345 mm plate		2003-09-09	M	SINGLE WAVELENGTH
2	1	x-ray	100	IMAGE PLATE	MAR scanner 345 mm plate		2003-09-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R	1.5418
2	ROTATING ANODE	RIGAKU RUH3R	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
1,2	2.5	15	97.9	0.108	16.1	6.3	13808	13808

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)
	2.5	2.59	85.8		0.278	3.2		1190

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	PDB ENTRY 2HF4	2.5	15	13323	13323	1313	94.5	0.201	0.201	0.177	0.17	0.228	0.22	random	27.25

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]
1.918		-0.891	5.939		-7.856

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	2.856
c_mcangle_it	2.077
c_scbond_it	1.954
c_mcbond_it	1.272
c_angle_deg	1.22
c_bond_d	0.0059

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2820
Nucleic Acid Atoms
Solvent Atoms	249
Heterogen Atoms	70

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
PDB_EXTRACT	data extraction
MAR345dtb	data collection
EPMR	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.