Experiment: 3P7N

Crystal structure of light activated transcription factor El222 from Erythrobacter litoralis

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2PR5	2PR5 1YIO
experimental model	PDB	1YIO	2PR5 1YIO

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	290	20% PEG 8000, 0.1M MOPS pH 7.0, 0.1M ammonium chloride, VAPOR DIFFUSION, HANGING DROP, temperature 290K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 37.044	α = 90
b = 81.595	β = 94.57
c = 65.478	γ = 90

Symmetry
Space Group	P 1 21 1

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		2008-12-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-1	0.9795	SSRL	BL9-1

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	2.1	36.93	99.8	0.102	10.1	7.68	22731	22731			31.79

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2PR5 1YIO	2.1	34.595	22731	22135	1092	97.31	0.2659	0.2626	0.2558	0.3285	0.3145	Random	43.872

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]
17.6889		0.8317	-11.5337		-6.1553

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.303
f_angle_d	0.779
f_chiral_restr	0.055
f_bond_d	0.003
f_plane_restr	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2964
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms	62

Software

Software
Software Name	Purpose
ADSC	data collection
PHASER	phasing
PHENIX	refinement
d*TREK	data reduction
d*TREK	data scaling