4XTN

Crystal structure of the light-driven sodium pump KR2 in the pentameric red form, pH 4.9

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIPIDIC CUBIC PHASE		293	The crystals were grown using in meso crystallization technique

Crystal Properties
Matthews coefficient	Solvent content
3.2	61.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.69	α = 90
b = 107	β = 90.11
c = 240.8	γ = 90

Symmetry
Space Group	P 1 21 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	PIXEL	PSI PILATUS 6M		2014-05-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.969	ESRF	ID29

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.2	48.9	96.2	7	2.8		192342

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.2	2.28	97.8		0.975	1.2	2.8

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	4XTL	2.2	48.9	192342	9797	96.16	0.1968	0.19482	0.236	RANDOM	35.945

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]
1.39		-0.19	1.74		-3.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.781
r_dihedral_angle_4_deg	14.07
r_dihedral_angle_3_deg	12.982
r_long_range_B_refined	7.015
r_long_range_B_other	7.015
r_scangle_other	5.837
r_mcangle_it	4.42
r_mcangle_other	4.42
r_dihedral_angle_1_deg	4.231
r_scbond_it	4.144
r_scbond_other	4.144
r_mcbond_it	3.329
r_mcbond_other	3.328
r_angle_other_deg	1.121
r_angle_refined_deg	0.832
r_chiral_restr	0.049
r_bond_refined_d	0.004
r_bond_other_d	0.003
r_gen_planes_refined	0.003
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	21636
Nucleic Acid Atoms
Solvent Atoms	351
Heterogen Atoms	1324

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing