1ZXQ

THE CRYSTAL STRUCTURE OF ICAM-2

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.4	277	CRYSTALS WERE BEST GROWN AT 4C USING THE HANGING-DROP VAPOR DIFFUSION METHOD, WITH A PROTEIN SOLUTION OF 15-17 MG/ML AND A CRYSTALLIZATION SOLUTION WITH 20% PEG 4000, 20 MM CACODYLATE BUFFER PH 6.4, AND 25 MM B-OCTYL-GLUCOPYRANOSIDE., vapor diffusion - hanging drop, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.56	45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69	α = 90
b = 63.7	β = 114.5
c = 76.2	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	113	AREA DETECTOR	SIEMENS		1995-04-20	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
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	2.2	100	93.9	0.44	10.5	3.1		14277

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	2.2	2.32	68.8		0.141	4.2	1.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MIR	2.2	15	2		88.3	0.226	0.226	0.295	50

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]
12.8		10.9	17.4		26.7

RMS Deviations
Key	Refinement Restraint Deviation
x_scangle_it	2.5
x_angle_deg	2.2
x_mcangle_it	2
x_scbond_it	2
x_mcbond_it	1.5
x_bond_d	0.019
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1500
Nucleic Acid Atoms
Solvent Atoms	142
Heterogen Atoms	168

Software

Software
Software Name	Purpose
XDS	data scaling
CCP4	data reduction
X-PLOR	model building
X-PLOR	refinement
XDS	data reduction
CCP4	data scaling
X-PLOR	phasing