2OAY

Crystal structure of latent human C1-inhibitor

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	0.85 M NaH2PO4, 0.85 M KH2PO4, 0.1 M HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.04	59.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 98.903	α = 90
b = 98.903	β = 90
c = 94.684	γ = 120

Symmetry
Space Group	P 65

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	MAR CCD 165 mm	mirrors	2006-05-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11	0.8162	EMBL/DESY, HAMBURG	X11

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	2.35	84.52	99.8	0.097	20.29	14.6		21930		-3	32.4

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	2.35	2.4	100		0.652	3.89	9.54	1341

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	Ensemble of truncated serpin structures. PDB codes: 4CAA, 1QMB, 1E05, 1DVM, 1C8O, 1JTI, 1JJO, 1MTP, 1HLE, 1JRR	2.35	84.52	20803	20803	1125	99.83	0.17595	0.17595	0.17363	0.21794	RANDOM	32.433

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]
0.29	0.14		0.29		-0.43

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	7.479
r_scangle_it	3.367
r_mcangle_it	3.238
r_scbond_it	2.123
r_mcbond_it	2.07
r_angle_refined_deg	1.764
r_angle_other_deg	0.804
r_symmetry_vdw_other	0.39
r_symmetry_vdw_refined	0.273
r_nbd_other	0.256
r_nbd_refined	0.216
r_xyhbond_nbd_refined	0.187
r_symmetry_hbond_refined	0.186
r_nbtor_other	0.1
r_chiral_restr	0.098
r_bond_refined_d	0.02
r_gen_planes_refined	0.007
r_gen_planes_other	0.005
r_bond_other_d	0.001
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
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_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2845
Nucleic Acid Atoms
Solvent Atoms	70
Heterogen Atoms	32

Software

Software
Software Name	Purpose
MAR345	data collection
MOLREP	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling