2HT3

Structure of the Escherichia coli ClC chloride channel Y445L mutant and Fab complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	38% peg 200/300 1:2, 50 mM HEPES, 150mN NaKTart, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
4.36	71.76

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 221.63	α = 90
b = 124.854	β = 128.15
c = 150.721	γ = 90

Symmetry
Space Group	C 1 2 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 210			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	0.9193	ALS	8.2.1

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	3.3	40	98.7	0.089			46245	45644	1	1	83.066

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	3.3	3.385	97.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3.3	40	46245	45644	2429	98.7	0.25375	0.25375	0.25293	0.26933	RANDOM	86.145

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]
-4.55		-4.85	8.08		-9.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.831
r_dihedral_angle_3_deg	22.953
r_mcangle_it	20.391
r_dihedral_angle_4_deg	19.626
r_mcbond_it	14.919
r_dihedral_angle_1_deg	7.581
r_scangle_it	4.664
r_scbond_it	3.499
r_angle_refined_deg	1.793
r_symmetry_vdw_refined	0.341
r_nbtor_refined	0.327
r_nbd_refined	0.288
r_xyhbond_nbd_refined	0.197
r_chiral_restr	0.116
r_symmetry_hbond_refined	0.103
r_bond_refined_d	0.016
r_gen_planes_refined	0.006
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	13215
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	4

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing