1FCG

ECTODOMAIN OF HUMAN FC GAMMA RECEPTOR, FCGRIIA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.6		HANGING DROP VAPOUR DIFFUSION WITH EQUAL VOLUMES OF FC(GAMMA)RIIA AT 6 MG/ML AND MOTHER LIQUOR (0.2 M AMMONIUM ACETATE, 30% W/V PEG 4000, 0.1 M SODIUM CITRATE PH 5.6) MIXED IN 3 MICRO L DROPLETS AND ALLOWED TO EQUILIBRATE AT 22 C FOR 3-9 DAYS.

Crystal Properties
Matthews coefficient	Solvent content
2.6	53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.221	α = 90
b = 100.866	β = 90
c = 28.172	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	108	IMAGE PLATE	RIGAKU	MIRRORS	1998-04-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	MACSCIENCE M18X

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	10	94.9	0.069	10.3	2.73		15024

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	2.07	95.9		0.359	1.5	2.53

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	SIRAS	THROUGHOUT	2	6	11447	1038	95.5	0.218	0.197	0.242	RANDOM	25.1

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	27.4
p_staggered_tor	19.7
p_special_tor	15
p_scangle_it	5.81
p_mcangle_it	4.71
p_planar_tor	4.1
p_scbond_it	3.01
p_mcbond_it	2.31
p_multtor_nbd	0.235
p_singtor_nbd	0.177
p_xyhbond_nbd	0.136
p_chiral_restr	0.121
p_planar_d	0.032
p_angle_d	0.03
p_plane_restr	0.02
p_bond_d	0.011
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1392
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHARP	phasing
DM	model building
REFMAC	refinement
DM	phasing