2Q4I

Ensemble refinement of the protein crystal structure of allene oxide cyclase from Arabidopsis thaliana At3g25770

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1Z8K	PDB entry 1Z8K

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.9	57.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.412	α = 90
b = 100.013	β = 90
c = 105.386	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						M	SINGLE WAVELENGTH

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	Re-refinement using ensemble model	THROUGHOUT	PDB entry 1Z8K	1.71	48.166	73898	3725	99.7	0.132	0.132	0.172	RANDOM	10

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
c_dihedral_angle_d	26.9
c_scangle_it	2.57
c_angle_deg	2
c_scbond_it	1.9
c_mcangle_it	1.54
c_improper_angle_d	1.41
c_mcbond_it	1.18
c_bond_d	0.022

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4092
Nucleic Acid Atoms
Solvent Atoms	741
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
PDB_EXTRACT	data extraction
CNS	phasing