2OK5

Human Complement factor B

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1DLE	1dle and 1q0p were used for molecular replacement
experimental model	PDB	1Q0P	1dle and 1q0p were used for molecular replacement

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	12% PEG 1500, 0.02 M Malic acid, 0.04 M MES, 0.04 M TRIS, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.79	55.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 104.031	α = 90
b = 104.031	β = 90
c = 151.116	γ = 120

Symmetry
Space Group	P 31 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	CCD	ADSC QUANTUM 315		2006-02-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.9395	ESRF	ID14-4

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	2.3	60	99.8	0.108		4.1		42556

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	2.3	2.42	100		0.561	2.6	4.1

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1dle and 1q0p were used for molecular replacement	2.3	60	42556	40409	2147	99.79	0.19748	0.19514	0.24051	RANDOM	33.681

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]
1.09	0.55		1.09		-1.64

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.642
r_dihedral_angle_3_deg	15.818
r_dihedral_angle_4_deg	15.161
r_dihedral_angle_1_deg	6.322
r_scangle_it	2.535
r_scbond_it	1.579
r_angle_refined_deg	1.297
r_mcangle_it	1.042
r_mcbond_it	0.612
r_nbtor_refined	0.303
r_nbd_refined	0.194
r_symmetry_vdw_refined	0.181
r_xyhbond_nbd_refined	0.151
r_symmetry_hbond_refined	0.121
r_chiral_restr	0.087
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5606
Nucleic Acid Atoms
Solvent Atoms	295
Heterogen Atoms	217

Software

Software
Software Name	Purpose
REFMAC	refinement
DNA	data collection
MOSFLM	data reduction
CCP4	data scaling
PHASER	phasing