3BFA

Crystal structure of a pheromone binding protein from Apis mellifera in complex with the Queen mandibular pheromone

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	293	1.8M ammonium sulphate, 0.1M sodium citrate, pH5.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.02	59.22

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.461	α = 90
b = 85.019	β = 90
c = 48.345	γ = 90

Symmetry
Space Group	C 2 2 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	CCD	ADSC QUANTUM 4r	Tiroidal mirror	2007-02-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-3	0.931	ESRF	ID14-3

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	2.25	57.3	100	0.067	0.067	16.9	4.5	7888	7888			43.67

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	2.25	2.37	99.9		0.518	0.518	2.7	4.4	1119

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 1R5R	2.25	40	7107	7107	769	99.95	0.18598	0.18598	0.18059	0.23581	RANDOM	55.524

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]
1.05			-0.65		-0.4

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.645
r_dihedral_angle_3_deg	14.69
r_dihedral_angle_4_deg	10.36
r_dihedral_angle_1_deg	5.406
r_scangle_it	1.905
r_scbond_it	1.385
r_angle_refined_deg	1.278
r_angle_other_deg	0.915
r_mcangle_it	0.787
r_mcbond_it	0.633
r_symmetry_vdw_refined	0.252
r_nbd_refined	0.225
r_symmetry_vdw_other	0.202
r_nbd_other	0.188
r_nbtor_refined	0.179
r_xyhbond_nbd_refined	0.176
r_symmetry_hbond_refined	0.173
r_mcbond_other	0.134
r_nbtor_other	0.089
r_chiral_restr	0.07
r_bond_refined_d	0.014
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	907
Nucleic Acid Atoms
Solvent Atoms	75
Heterogen Atoms	19

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
MOSFLM	data reduction
SCALA	data scaling
REFMAC	phasing