Experiment: 6Q3P

Atomic resolution crystal structure of an AAB collagen heterotrimer

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
in silico model	Other		idealized 16 amino acid triple helix

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.8	293.15	19% PEG monomethyl ether 2K, 0.1M Tris-HCl, pH 8.6

Crystal Properties
Matthews coefficient	Solvent content
1.96	37.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 19.736	α = 86.361
b = 28.076	β = 86.681
c = 48.384	γ = 77.21

Symmetry
Space Group	P 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		2017-01-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03	0.7000	Diamond	I03

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	1.03	27.341973967	94.5	0.041	7.2	1.9		47206			11.81

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.03	1.05	92.5		0.399	0.894	1.5	1.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	idealized 16 amino acid triple helix	1.03	27.34	1.98	47069	2247	94.18	0.1447	0.1434	0.146	0.1738	0.1768	RANDOM	20.76

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
f_dihedral_angle_d	12.6425
f_angle_d	1.6039
f_chiral_restr	0.0852
f_bond_d	0.0145
f_plane_restr	0.0101

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	935
Nucleic Acid Atoms
Solvent Atoms	301
Heterogen Atoms	10

Software

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