6YC2

Crystal structure of the light-driven sodium pump KR2 in the pentameric form at room temperature, pH 8.0

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6REW

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIPIDIC CUBIC PHASE	8	293	1.2 NaMal pH 8.0

Crystal Properties
Matthews coefficient	Solvent content
3.63	66.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 135.54	α = 90
b = 240.13	β = 90
c = 138.58	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	PIXEL	DECTRIS EIGER X 16M		2019-10-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P14 (MX2)	0.976	PETRA III, EMBL c/o DESY	P14 (MX2)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	2.5	48.86	100	0.206	0.213	0.052	0.998	10.6	16.3		78232

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.5	2.55	100		2.481	2.558	0.616	0.77		16.6

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	6rew	2.5	20	74296	3762	99.72	0.1643	0.1631	0.1881	RANDOM	49.11

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]
3.8			-5.36		1.56

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.676
r_dihedral_angle_4_deg	14.485
r_dihedral_angle_3_deg	13.576
r_dihedral_angle_1_deg	3.704
r_angle_other_deg	1.129
r_angle_refined_deg	1.119
r_chiral_restr	0.05
r_gen_planes_refined	0.003
r_bond_refined_d	0.002
r_bond_other_d

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.676
r_dihedral_angle_4_deg	14.485
r_dihedral_angle_3_deg	13.576
r_dihedral_angle_1_deg	3.704
r_angle_other_deg	1.129
r_angle_refined_deg	1.119
r_chiral_restr	0.05
r_gen_planes_refined	0.003
r_bond_refined_d	0.002
r_bond_other_d
r_gen_planes_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10769
Nucleic Acid Atoms
Solvent Atoms	221
Heterogen Atoms	372

Software

Software
Software Name	Purpose
Aimless	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
MOLREP	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.