1NKR

INHIBITORY RECEPTOR (P58-CL42) FOR HUMAN NATURAL KILLER CELLS

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.7		PROTEIN WAS CRYSTALLIZED FROM 0.55 M (NH4)2HPO4, 50 MM SODIUM CITRATE, PH 5.4, FINAL PH 7.7. CRYSTALS WERE HARVESTED IN 1.5 M (NH4)2HPO4, 50 MM SODIUM CITRATE, PH 5.4, FINAL PH 7.7; THEN SOAKED IN 1.5 M (NH4)2HPO4, 50 MM SODIUM CITRATE, PH 5.4, 25% GLYCEROL, FINAL PH 7.7, AND FLASH-COOLED WITH LIQUID NITROGEN.

Crystal Properties
Matthews coefficient	Solvent content
1.8	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.36	α = 90
b = 92.36	β = 90
c = 46.77	γ = 120

Symmetry
Space Group	P 61

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	90	CCD	PRINCETON 2K	MIRRORS	1996-10-19	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F1		CHESS	F1

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	1.7	16	99.5	0.073	0.073	17.1	7		25065

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)
	1.7	1.76	97.8		0.234	0.234	4	6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.7	6	24473	2427	99.5	0.205	0.227	0.255	RANDOM

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1513
Nucleic Acid Atoms
Solvent Atoms	211
Heterogen Atoms

Software

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

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.