Experiment: 2E18

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1XNH	PDB code 1XNH

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Microbach	7.4	291	20v/v (%) 1 4-butanediol, 0.1M Imidazole, 0.2M Zn Acet, pH 7.4, Microbach, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
3.54	65.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.919	α = 90
b = 84.919	β = 90
c = 113.576	γ = 90

Symmetry
Space Group	P 41

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	RIGAKU JUPITER	Mirror	2006-07-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL26B1	1.0	SPring-8	BL26B1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	40	100	0.087	0.081	9.2	7.2	46959	46959			16.4

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	2.1	2.18	100		0.368	0.342	2.9	6.8

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB code 1XNH	2.1	34.58	46959	46959	2348	99.9	0.228	0.228	0.262	RANDOM	34.5

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]
4.65			4.65		-9.3

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.1
c_scangle_it	2.65
c_mcangle_it	1.97
c_scbond_it	1.86
c_mcbond_it	1.26
c_angle_deg	1.2
c_improper_angle_d	0.74
c_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4050
Nucleic Acid Atoms
Solvent Atoms	437
Heterogen Atoms	21

Software

Software
Software Name	Purpose
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	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.