Experiment: 3C2W

Crystal structure of the photosensory core domain of P. aeruginosa bacteriophytochrome PaBphP in the Pfr state

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		A partial model built from a mutant structure determined by MAD phasing

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.7	293	0.45M (NH4)H2PO4 0.1M Tris HCl 10mg/ml protein, pH 7.7, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.22	61.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 154.417	α = 90
b = 164.255	β = 90
c = 434.868	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 315		2007-10-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.979	APS	19-ID

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	2.7	50	59.2	0.066		3.4	150452	89068			70.12

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	2.7	2.8	100		0.4		1.5

Refinement

Statistics
Diffraction ID	Structure Solution 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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	A partial model built from a mutant structure determined by MAD phasing	2.9	14.996	121194	87377	4371	72.1	0.2221	0.2188	0.2184	0.2832	0.2838	126.92

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]
22.401			18.381		-40.782

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	17.554
f_angle_d	1.089
f_chiral_restr	0.074
f_bond_d	0.005
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	30117
Nucleic Acid Atoms
Solvent Atoms	30
Heterogen Atoms	344

Software

Software
Software Name	Purpose
HKL-3000	data collection
SHARP	phasing
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling