Experiment: 3HON

Crystal Structure of Human Collagen XVIII Trimerization Domain (cubic form)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	0.25M MgCl2, 0.1M BisTris, 18-22% (w/v) PEG 8000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 94.876	α = 90
b = 94.876	β = 90
c = 94.876	γ = 90

Symmetry
Space Group	I 41 3 2

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	NOIR-1	Rosenbaum-Rock monochromator 1: high-resolution double-crystal sagittal focusing, Rosenbaum-Rock monochromator 2: double crystal, Rosenbaum-Rock vertical focusing mirror	2008-06-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 4.2.2	1.106	ALS	4.2.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	3	38.8	100	0.074	0.077	25.9	12.6	1634	1634	2	2	100.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	3	3.16	100		0.655	0.682	4	13.2	233

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3	38.73	1627	1625	80	99.9	0.279	0.279	0.2798	0.288	0.3119	RANDOM	93.5

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]

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	25.5
c_mcangle_it	2.94
c_scangle_it	2.56
c_mcbond_it	1.57
c_angle_deg	1.5
c_scbond_it	1.47
c_improper_angle_d	0.88
c_bond_d	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	443
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
JBluIce-EPICS	data collection
Blu-Ice	data collection
PHENIX	model building
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
PHENIX	phasing