1DZM

Porcine Odorant Binding Protein Complexed with benzoic acid phenylmethylester

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.8	293	PROTEIN (0.47MM) IS INCUBATED WITH 10MM OF PYRAZINE, THE COMPLEX WAS CRYSTALLISED FROM 2M AMMONIUM SULFATE, AND 5% ISOPROPANOL IN HANGING DROPS, AT 20 DEGREES, pH 7.80

Crystal Properties
Matthews coefficient	Solvent content
2.46	50

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.009	α = 90
b = 88.679	β = 90
c = 93.163	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	x-ray	100	IMAGE PLATE	MARRESEARCH		1998-09-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LURE BEAMLINE DW32		LURE	DW32

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	1.93	15	99.2	0.067	13.7	3.2		26679			30.5

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)
1	1.93	1.96	99.9		0.27	3.3	3.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	OTHER	THROUGHOUT	1.93	15	26638	1337	99.1	0.235	0.235	0.246	RANDOM	44.3

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]
-1.04			0.81		0.22

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	26
c_angle_deg	1.7
c_improper_angle_d	0.91
c_bond_d	0.015
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2340
Nucleic Acid Atoms
Solvent Atoms	255
Heterogen Atoms	32

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing