2UUR

N-terminal NC4 domain of collagen IX

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		100 MM MES, PH 6.5 10 MM ZNSO4 20% MME-PEG 550

Crystal Properties
Matthews coefficient	Solvent content
2.2	42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.888	α = 90
b = 81.888	β = 90
c = 71.429	γ = 90

Symmetry
Space Group	I 4

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	MARRESEARCH		2003-09-20	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.9797, 0.9796, 0.8856	ESRF	BM14

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	1.8	20	99.9	0.05	20.5	7.5		21918			20.2

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	1.8	1.9	100		0.34	5.1

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	MAD	THROUGHOUT	1.8	19.96	21918	1069	99.8	0.188	0.188	0.214	RANDOM	30.4

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]
4.79			4.79		-9.58

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	25.1
c_scangle_it	2.87
c_mcangle_it	2.22
c_scbond_it	1.91
c_angle_deg	1.5
c_mcbond_it	1.39
c_improper_angle_d	0.78
c_bond_d	0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1657
Nucleic Acid Atoms
Solvent Atoms	209
Heterogen Atoms	26

Software

Software
Software Name	Purpose
CNS	refinement
XDS	data reduction
XDS	data scaling
CNS	phasing