3H9R

Crystal structure of the kinase domain of type I activin receptor (ACVR1) in complex with FKBP12 and dorsomorphin

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1A7X	1A7X CHAIN A, 1B6C CHAIN B
experimental model	PDB	1B6C	1A7X CHAIN A, 1B6C CHAIN B

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	277.15	30% PEG 3350; 0.25M Ammonium sulphate; 0.1M Bis-Tris, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 277.15K

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.349	α = 90
b = 62.345	β = 90
c = 171.597	γ = 90

Symmetry
Space Group	P 21 21 21

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	ADSC QUANTUM 315	Kirkpatrick Baez bimorph mirror pair	2009-02-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.9050	Diamond	I02

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	2.35	42.15	99.8	0.16	7.4	4.1	20182	20161		2	32.8

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	2.35	2.48	100		0.684	2	4	2892

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1A7X CHAIN A, 1B6C CHAIN B	2.35	42.15	20088	19063	1025	99.53	0.1866	0.19022	0.1866	0.25594	RANDOM	11.256

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]
0.57			-0.22		-0.35

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.1
r_dihedral_angle_4_deg	15.805
r_dihedral_angle_3_deg	15.181
r_scangle_it	7.624
r_dihedral_angle_1_deg	6.781
r_scbond_it	5.322
r_mcangle_it	2.645
r_angle_refined_deg	1.469
r_mcbond_it	1.322
r_angle_other_deg	0.894

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.1
r_dihedral_angle_4_deg	15.805
r_dihedral_angle_3_deg	15.181
r_scangle_it	7.624
r_dihedral_angle_1_deg	6.781
r_scbond_it	5.322
r_mcangle_it	2.645
r_angle_refined_deg	1.469
r_mcbond_it	1.322
r_angle_other_deg	0.894
r_mcbond_other	0.217
r_chiral_restr	0.088
r_bond_refined_d	0.015
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3303
Nucleic Acid Atoms
Solvent Atoms	263
Heterogen Atoms	94

Software

Software
Software Name	Purpose
PHASER	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.