5DUQ

Active human c1-inhibitor in complex with dextran sulfate

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	9	293	11 mg/ml of C1-inhibitor was mixed with 5kDa dextran sulfate in a 1:2 molar ratio and incubated on ice for an hour. Crystals grew in0.1 M SPG (pH 9), 25% w/v PEG 1500 0.1 M MgCl hexahydrate after 10 days.

Crystal Properties
Matthews coefficient	Solvent content
3.64	66.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 112.1	α = 90
b = 197.424	β = 103.31
c = 56.779	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	PIXEL	DECTRIS PILATUS 6M-F		2013-02-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.9686	ESRF	ID23-1

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	2.9	44.36	98.6	0.113	7.2	3.1		26376

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		THROUGHOUT	2.9	44.36	24919	1294	98.68	0.23084	0.22846	0.27829	RANDOM	94.406

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]
7.7		1.33	-5.72		-2.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.067
r_dihedral_angle_4_deg	20.551
r_dihedral_angle_3_deg	15.997
r_long_range_B_refined	15.285
r_long_range_B_other	15.284
r_scangle_other	10.509
r_mcangle_it	10.412
r_mcangle_other	10.411
r_dihedral_angle_1_deg	7.434
r_mcbond_it	6.502
r_mcbond_other	6.501
r_scbond_it	6.433
r_scbond_other	6.424
r_angle_refined_deg	1.589
r_angle_other_deg	1.175
r_chiral_restr	0.078
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.005
r_gen_planes_other	0.003
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5749
Nucleic Acid Atoms
Solvent Atoms	24
Heterogen Atoms	67

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
MOLREP	phasing