3BYC

Joint neutron and X-ray structure of diisopropyl fluorophosphatase. Deuterium occupancies are 1-Q, where Q is occupancy of H

X-RAY DIFFRACTION - NEUTRON DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	298	PEG 4000, pH 6.5, vapor diffusion, temperature 298K
2	VAPOR DIFFUSION, HANGING DROP	6.5	298	PEG 4000, pH 6.5, vapor diffusion, hanging drop, temperature 298K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.441	α = 90
b = 83.291	β = 90
c = 87.509	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	neutron	300	TOF AREA DETECTOR	BNL		2007-01-01	L	WAVELENGTH-RESOLVED LAUE
2	2	x-ray	298	IMAGE PLATE	MAR scanner 345 mm plate		2004-05-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1			0.6, 7.0
2	ROTATING ANODE	RIGAKU RU200	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	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	1.85	38.91	43.3									13656	12068	2.5		4.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	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
NEUTRON DIFFRACTION	existing x-ray model used	2.2	19.54		2.5	13629	12042	564	72			0.264	0.315	random	25.9
X-RAY DIFFRACTION	PDB id 2GVW	2.2	19.54		2.5	13629	12042	564	72			0.233	0.252	random	25.9

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
x_torsion_deg	15.6
x_angle_deg	1
x_torsion_impr_deg	0.88
x_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2451
Nucleic Acid Atoms
Solvent Atoms	246
Heterogen Atoms	2

Software

Software
Software Name	Purpose
nCNS	refinement

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.