4EUL

Crystal structure of enhanced Green Fluorescent Protein to 1.35A resolution reveals alternative conformations for Glu222

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	277	0.1 M MES pH 6.5, 200 mM calcium acetate, 20% (w/v) PEG8000, 13% PEG200 for cryoprotection, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.05	40.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.114	α = 90
b = 62.246	β = 90
c = 69.641	γ = 90

Symmetry
Space Group	P 21 21 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		2010-12-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.97988	Diamond	I02

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	1.35	46.42	99.8	0.093	0.093	5	4.6	49389	49389		2	10.6

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2Y0G	1.35	46.42	49389	46888	2501	99.79	0.13041	0.12837	0.16892	RANDOM	10.411

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]
0.35			0.57		-0.91

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.405
r_dihedral_angle_3_deg	12.885
r_dihedral_angle_4_deg	11.851
r_sphericity_bonded	9.962
r_dihedral_angle_1_deg	6.722
r_rigid_bond_restr	4
r_angle_refined_deg	1.989
r_angle_other_deg	0.983
r_chiral_restr	0.118
r_bond_refined_d	0.017
r_gen_planes_refined	0.011
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_it
r_mcbond_other
r_mcangle_it
r_scbond_it
r_scangle_it
r_sphericity_free

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1818
Nucleic Acid Atoms
Solvent Atoms	389
Heterogen Atoms	35

Software

Software
Software Name	Purpose
xia2	data scaling
MOLREP	phasing
REFMAC	refinement
XDS	data reduction
SCALA	data scaling