2GIX

Cytoplasmic Domain Structure of Kir2.1 containing Andersen's Mutation R218Q and Rescue Mutation T309K

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	277	35% MPD, 0.1 NaPO4/KPO4, 50mM NaCl, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.7	54.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 140.674	α = 90
b = 98.876	β = 130.68
c = 98.094	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		2005-10-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	1.000	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	2.02	50	99.6	0.086	8.8	3.6	66471	66107

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)
	2.02	2.09	99.45	97.1	0.347		2.8

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	Cytoplasmic Domains of Kir2.1	2.02		66471	66106	3363	99.45	0.191	0.177	0.229	RANDOM	27.865

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]
1.91		1.13	-0.6		0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.617
r_dihedral_angle_4_deg	22.591
r_dihedral_angle_3_deg	15.599
r_dihedral_angle_1_deg	6.958
r_scangle_it	4.675
r_scbond_it	3.072
r_mcangle_it	2.066
r_angle_refined_deg	1.656
r_mcbond_it	1.112
r_nbtor_refined	0.312

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.617
r_dihedral_angle_4_deg	22.591
r_dihedral_angle_3_deg	15.599
r_dihedral_angle_1_deg	6.958
r_scangle_it	4.675
r_scbond_it	3.072
r_mcangle_it	2.066
r_angle_refined_deg	1.656
r_mcbond_it	1.112
r_nbtor_refined	0.312
r_symmetry_hbond_refined	0.245
r_symmetry_vdw_refined	0.241
r_nbd_refined	0.208
r_xyhbond_nbd_refined	0.179
r_chiral_restr	0.118
r_metal_ion_refined	0.112
r_bond_refined_d	0.018
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6570
Nucleic Acid Atoms
Solvent Atoms	732
Heterogen Atoms	1

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.