3DSI

Crystal Structure of Arabidopsis thaliana Allene Oxide Synthase (AOS, cytochrome P450 74A, CYP74A) Complexed with 13(S)-HOT at 1.60 A resolution

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3CLI	PDB ENTRY 3CLI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	PEG4000, Glycerol, Tris-HCl, pH7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.42	49.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.407	α = 90
b = 104.851	β = 90
c = 162.417	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	MARMOSAIC 325 mm CCD		2007-08-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	1.0332	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.6	100	99.6			143678	143678

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.6	1.63	99.1

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	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 3CLI	1.6	88.04	136373	136373	7199	99.35	0.16767	0.16767	0.16672	0.18548	RANDOM	20.979

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]
0.45			-0.69		0.24

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.935
r_dihedral_angle_4_deg	15.364
r_dihedral_angle_3_deg	12.088
r_dihedral_angle_1_deg	5.595
r_scangle_it	3.145
r_scbond_it	1.982
r_angle_refined_deg	1.263
r_mcangle_it	1.158
r_mcbond_it	0.693
r_nbtor_refined	0.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.935
r_dihedral_angle_4_deg	15.364
r_dihedral_angle_3_deg	12.088
r_dihedral_angle_1_deg	5.595
r_scangle_it	3.145
r_scbond_it	1.982
r_angle_refined_deg	1.263
r_mcangle_it	1.158
r_mcbond_it	0.693
r_nbtor_refined	0.31
r_symmetry_vdw_refined	0.206
r_nbd_refined	0.205
r_xyhbond_nbd_refined	0.125
r_symmetry_hbond_refined	0.097
r_chiral_restr	0.083
r_bond_refined_d	0.009
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7426
Nucleic Acid Atoms
Solvent Atoms	807
Heterogen Atoms	141

Software

Software
Software Name	Purpose
REFMAC	refinement
Blu-Ice	data collection
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	phasing

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.