4DZ8

human IgG1 Fc fragment Heterodimer

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	295	50 mM Hepes, pH 7.0, 1% Tryptone, and 20% PEG 3350, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.74	55.19

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.929	α = 90
b = 81.292	β = 90
c = 136.151	γ = 90

Symmetry
Space Group	P 21 21 21

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 315r		2011-09-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	1.0	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.9	50	99.9	0.078	28.7	6.9		43830

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.9	1.97	100		0.471	3.44	6.4	4309

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	MOLECULAR REPLACEMENT	THROUGHOUT	1.91	30	41549	2201	99.53	0.20638	0.20484	0.23658	RANDOM	32.058

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]
-0.46			-0.9		1.36

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.522
r_dihedral_angle_4_deg	15.253
r_dihedral_angle_3_deg	13.694
r_dihedral_angle_1_deg	5.716
r_scangle_it	2.186
r_scbond_it	1.459
r_angle_refined_deg	1.265
r_angle_other_deg	1.091
r_mcangle_it	0.823
r_mcbond_it	0.748
r_symmetry_vdw_other	0.254
r_nbd_other	0.189
r_nbd_refined	0.18
r_nbtor_refined	0.172
r_symmetry_hbond_refined	0.161
r_xyhbond_nbd_refined	0.126
r_chiral_restr	0.122
r_mcbond_other	0.114
r_nbtor_other	0.09
r_symmetry_vdw_refined	0.079
r_bond_refined_d	0.009
r_gen_planes_refined	0.004
r_bond_other_d	0.003
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3355
Nucleic Acid Atoms
Solvent Atoms	436
Heterogen Atoms	198

Software

Software
Software Name	Purpose
BOS	data collection
PHASER	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling