2IOV

Bright-state structure of the reversibly switchable fluorescent protein Dronpa

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	22% PEG 3350, 140mM Mg(NO3)2, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.43	49.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.292	α = 90
b = 109.627	β = 90
c = 275.232	γ = 90

Symmetry
Space Group	I 2 2 2

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	MAR CCD 165 mm		2005-10-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	1.04025	SLS	X10SA

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	1.7	30	83.8	0.07	19.1	5.2	99209	104290	1	1	21

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	1.7	1.74	26.1		0.452	2.3	5.2	2333

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ID 2A50	1.8	30	98948	5201	98.59	0.18678	0.18523	0.21636	RANDOM	29.716

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]
0.39			1.14		-1.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.813
r_dihedral_angle_3_deg	14.641
r_dihedral_angle_4_deg	12.147
r_dihedral_angle_1_deg	6.573
r_scangle_it	2.647
r_scbond_it	1.752
r_angle_refined_deg	1.359
r_mcangle_it	1.017
r_mcbond_it	0.645
r_nbtor_refined	0.303
r_symmetry_vdw_refined	0.193
r_nbd_refined	0.188
r_symmetry_hbond_refined	0.153
r_xyhbond_nbd_refined	0.128
r_chiral_restr	0.095
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7060
Nucleic Acid Atoms
Solvent Atoms	883
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing