Experiment: 6ZVQ

Complex between SMAD2 MH2 domain and peptide from Ski corepressor

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1KHX

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.6	293	1.5M Ammonium Sulphate, 0.15M Sodium Potassium Tartrate, 0.08M Tri-Sodium Citrate pH 5.6, 25% v/v Glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.449	49.809

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 113.82	α = 90
b = 113.82	β = 90
c = 113.82	γ = 90

Symmetry
Space Group	I 21 3

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 PILATUS 6M	Mirrors	2017-10-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I24	0.9686	Diamond	I24

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	2.03	56.91	99.95	0.125	0.1319	0.04167	0.998	12.24	10		15983			37.09

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.031	2.104	100		1.469	1.547	0.4846	0.635	1.89	10.1

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)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1khx	2.03	56.91	1.33	15983	1440	99.94	0.1665	0.1641	0.1673	0.2101	0.2041	43.13

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	13.9009
f_angle_d	0.9182
f_chiral_restr	0.0545
f_bond_d	0.0073
f_plane_restr	0.0065

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1763
Nucleic Acid Atoms
Solvent Atoms	76
Heterogen Atoms	88

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
xia2	data reduction
xia2	data scaling
PHASER	phasing