2O29

Spectroscopic and Structural Study of the Heterotropic Linkage between Halide and Proton Ion Binding to Gfp Proteins: E2(GFP)-BR Complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5		14% (W/V) PEG 3350, 100 MM NH4 ACETATE, 0.2 M NH4Br, PH 5.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 100K

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.144	α = 90
b = 62.852	β = 90
c = 69.172	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				M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A		ESRF	BM30A

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	1.8	28.684	97.7	0.098	0.098	6.9	5.2		20873		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.9	95.2		0.377	0.377	2	6.8

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 entry 2H6V	1.8	15.15	19578	1062	97.03	0.17909	0.17753	0.20835	RANDOM	14.178

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]
-0.19			-0.75		0.94

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.591
r_dihedral_angle_4_deg	18.815
r_dihedral_angle_3_deg	14.557
r_dihedral_angle_1_deg	7.809
r_scangle_it	2.824
r_scbond_it	2.08
r_angle_refined_deg	1.523
r_angle_other_deg	1.281
r_mcangle_it	1.181
r_mcbond_it	1.067
r_symmetry_vdw_refined	0.391
r_symmetry_vdw_other	0.362
r_xyhbond_nbd_refined	0.293
r_nbd_refined	0.262
r_nbd_other	0.2
r_nbtor_refined	0.175
r_mcbond_other	0.171
r_symmetry_hbond_refined	0.155
r_chiral_restr	0.086
r_nbtor_other	0.086
r_bond_refined_d	0.011
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1885
Nucleic Acid Atoms
Solvent Atoms	179
Heterogen Atoms	4

Software

Software
Software Name	Purpose
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling