2ZXE

Crystal structure of the sodium - potassium pump in the E2.2K+.Pi state

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3B8E

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Dialysis	7	298	pH 7.0, Dialysis, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.08	60.04

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 223.815	α = 90
b = 50.914	β = 105.12
c = 163.786	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 315			M	SINGLE WAVELENGTH
2	1		CCD	RAYONIX MX225HE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	0.9	SPring-8	BL41XU

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	2.4	50	99.1	0.058	38.8	17	70710	70074

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)
1	2.4	2.46	95.7		0.372	2.8	5.8	5155

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		THROUGHOUT	3B8E	2.4	15	66157	3555	100	0.24772	0.24644	0.27124	RANDOM	59.782

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]
2.05		-1.99	0.01		-3.1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.775
r_dihedral_angle_4_deg	15.787
r_dihedral_angle_3_deg	14.955
r_dihedral_angle_1_deg	4.084
r_scangle_it	1.467
r_angle_refined_deg	1.085
r_mcangle_it	1.032
r_scbond_it	0.863
r_mcbond_it	0.564
r_chiral_restr	0.068
r_bond_refined_d	0.007
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10131
Nucleic Acid Atoms
Solvent Atoms	130
Heterogen Atoms	79

Software

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