7XAN

Structure of a triple-helix region of human collagen type III from Trautec

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2CUO

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	0.04M K phosphate monobasic, 16% w/v PEG 8000, 20% v/v Glycerol

Crystal Properties
Matthews coefficient	Solvent content
1.74	29.43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 15.783	α = 90
b = 19.439	β = 93.77
c = 83.164	γ = 90

Symmetry
Space Group	P 1 21 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	PIXEL	DECTRIS PILATUS3 6M		2022-02-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08ID-1	0.7749	CLSI	08ID-1

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	1.5	41.49	97.4	0.021	48.1	6.3		8076

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	1.5	1.53			0.058

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2cuo	1.5	20.755	8070	374	96.635	0.168	0.1668	0.1997	21.368

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]
0.14		-0.421	-0.336		0.25

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	20.258
r_dihedral_angle_3_deg	9.334
r_dihedral_angle_1_deg	7.677
r_lrange_it	5.594
r_lrange_other	5.54
r_scangle_it	4.064
r_scangle_other	4.055
r_mcangle_it	3.719
r_mcangle_other	3.705
r_scbond_it	2.801
r_scbond_other	2.745
r_mcbond_it	2.254
r_mcbond_other	2.22
r_angle_refined_deg	1.694
r_angle_other_deg	1.051
r_symmetry_xyhbond_nbd_refined	0.252
r_nbd_refined	0.21
r_xyhbond_nbd_refined	0.203
r_nbd_other	0.202
r_symmetry_nbd_other	0.185
r_symmetry_nbd_refined	0.182
r_nbtor_refined	0.17
r_symmetry_nbtor_other	0.09
r_chiral_restr	0.066
r_bond_refined_d	0.013
r_gen_planes_refined	0.009
r_chiral_restr_other	0.004
r_bond_other_d	0.001
r_gen_planes_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	494
Nucleic Acid Atoms
Solvent Atoms	78
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing