1LF7

Crystal Structure of Human Complement Protein C8gamma at 1.2 A Resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	277	PEG 4000, sodium citrate, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.22	44.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.448	α = 90
b = 58.993	β = 90
c = 72.053	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	94	PIXEL	DECTRIS PILATUS3 X 6M		1999-06-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	1.0	APS	19-ID

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	1.2	50	92.2	0.043			57166	53030	3	1.5	9.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.2	1.24	63.3

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 (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIRAS	THROUGHOUT	1.2	36.03	46632	4673	81.2	0.223	0.223	0.229	RANDOM	14.8

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]
-0.31			0.2		0.11

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	26.3
c_scangle_it	2.73
c_scbond_it	1.87
c_mcangle_it	1.82
c_mcbond_it	1.23
c_angle_deg	1.1
c_improper_angle_d	0.67
c_bond_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1271
Nucleic Acid Atoms
Solvent Atoms	186
Heterogen Atoms	13

Software

Software
Software Name	Purpose
HKL-2000	data collection
HKL-2000	data reduction
SOLVE	phasing
RESOLVE	model building
CNS	refinement
HKL-2000	data scaling
RESOLVE	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.