2AHE

Crystal structure of a soluble form of CLIC4. intercellular chloride ion channel

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1KOM

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.21

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.717	α = 90
b = 79.478	β = 90
c = 42.6	γ = 90

Symmetry
Space Group	P 21 21 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	IMAGE PLATE	MARRESEARCH	OSMIC MIRRORS	2003-09-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	ENRAF-NONIUS FR571	1.5418

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	55.9	99.87	0.063	0.063	8.3584	4.65	25137	25137

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	99.87		0.58	0.58	1.3	4.56	3600

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1KOM	1.8	24.62	23815	23815	1281	99.73	0.19618	0.19618	0.19446	0.22941	RANDOM	26.65

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]
0.47			0.13		-0.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.741
r_dihedral_angle_4_deg	17.571
r_dihedral_angle_3_deg	13.373
r_dihedral_angle_1_deg	5.65
r_scangle_it	4.208
r_scbond_it	3.05
r_mcangle_it	1.677
r_angle_refined_deg	1.536
r_mcbond_it	1.427
r_angle_other_deg	0.855
r_symmetry_vdw_refined	0.299
r_mcbond_other	0.298
r_nbd_refined	0.224
r_symmetry_vdw_other	0.218
r_nbtor_refined	0.181
r_nbd_other	0.178
r_xyhbond_nbd_refined	0.14
r_symmetry_hbond_refined	0.127
r_chiral_restr	0.092
r_nbtor_other	0.084
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_bond_other_d	0.001
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	1820
Nucleic Acid Atoms
Solvent Atoms	196
Heterogen Atoms

Software

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