Experiment: 4BBU

The PR2 Photocycle Intermediate of Photoactive Yellow Protein

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	9	295	2.2 M AMMONIUM SULFATE, 1.0 M SODIUM CHLORIDE, AND 10 MM SODIUM DIDEUTERIUM PHOSPHATE, 10 MM DISODIUM DEUTERIUM PHOSPHATE, PH 9.0, VAPOUR DIFFUSION, HANGING DROP, MICROSEEDING, TEMPERATURE 295 K

Crystal Properties
Matthews coefficient	Solvent content
1.9	35.24

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.833	α = 90
b = 66.833	β = 90
c = 40.947	γ = 120

Symmetry
Space Group	P 63

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	288	CCD	RAYONIX SX-165mm	MIRRORS	2011-03-12	L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-ID-B	0.96-1.30	APS	14-ID-B

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	1.6	13.28	64	0.2	11.6	5.1		10605		2	16.54

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)
1	1.6	1.7	26		0.15	1.2	2.56

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	NONE	1.6	13.285	0.02	10218	416	73.69	0.1667	0.1645	0.1665	0.2184	0.2179	26.2

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]
0.344			0.344		-0.6881

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.284
f_angle_d	1.253
f_chiral_restr	0.076
f_bond_d	0.007
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	976
Nucleic Acid Atoms
Solvent Atoms	139
Heterogen Atoms	11

Software

Software
Software Name	Purpose
PHENIX	refinement
d*TREK	data reduction
d*TREK	data scaling