7E2W

Crystal structure of isocitrate dehydrogenase from Ostreococcus tauri in complex with isocitrate and magnesium(II)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	286	20% PEG 4000, 10% 2-propanol, 0.1 M sodium citrate (pH 5.5).

Crystal Properties
Matthews coefficient	Solvent content
2.77	55.64

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.25	α = 89.15
b = 78.511	β = 103.59
c = 111.056	γ = 111.89

Symmetry
Space Group	P 1

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 315r		2015-04-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRF BEAMLINE BL17U1	0.97915	SSRF	BL17U1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	1.8	20	94.9	0.039	0.998	14.4	2.2		177015

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.9			0.84

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	MOLECULAR REPLACEMENT	THROUGHOUT	6IXL	1.8	19.95	168180	8824	94.9	0.2095	0.208	0.2392	RANDOM	29.875

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]
-0.21	-0.56	1.74	-0.46	0.24	0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.471
r_dihedral_angle_4_deg	20.512
r_dihedral_angle_3_deg	16.21
r_dihedral_angle_1_deg	5.585
r_angle_other_deg	1.563
r_angle_refined_deg	1.519
r_chiral_restr	0.091
r_bond_refined_d	0.01
r_gen_planes_refined	0.007
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.471
r_dihedral_angle_4_deg	20.512
r_dihedral_angle_3_deg	16.21
r_dihedral_angle_1_deg	5.585
r_angle_other_deg	1.563
r_angle_refined_deg	1.519
r_chiral_restr	0.091
r_bond_refined_d	0.01
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	12288
Nucleic Acid Atoms
Solvent Atoms	693
Heterogen Atoms	57

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
SCALA	data scaling
MOLREP	phasing
PDB_EXTRACT	data extraction

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 R01GM133198.