Structure of the 4-CHRD domain of human Chordin in complex with a Heparin Oligosaccharide


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFold 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.5277.150.1M Imidazole/MES buffer pH 6.5, 0.06M Magnesium chloride hexahydrate/Calcium chloride dihydrate, 30% Glycerol/PEG 4000. (Morpheus condition A3). 50ug/mL Heparin Dp4.
2VAPOR DIFFUSION, SITTING DROP6.5277.150.1M Imidazole/MES buffer pH 6.5, 0.06M Magnesium chloride hexahydrate/Calcium chloride dihydrate, 30% Glycerol/PEG 4000. (Morpheus condition A3). 50ug/mL Heparin Dp4.

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 172.774α = 90
b = 172.774β = 90
c = 129.411γ = 120
Symmetry
Space GroupP 62 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER2 XE 16M2024-09-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I040.9537DiamondI04

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)CC (Half)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.9297.881000.233117.778.925297112.67
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.923.11000.8030.53181.3

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE2.9274.811.3425240130099.90.24110.23940.24060.27420.2738
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
KeyRefinement Restraint Deviation
f_dihedral_angle_d13.747
f_angle_d0.789
f_chiral_restr0.053
f_plane_restr0.009
f_bond_d0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3652
Nucleic Acid Atoms
Solvent Atoms27
Heterogen Atoms116

Software

Software
Software NamePurpose
PHENIXrefinement
DIALSdata reduction
Aimlessdata scaling
PHASERphasing
Cootmodel building