3D3L

The 2.6 A crystal structure of the lipoxygenase domain of human arachidonate 12-lipoxygenase, 12S-type

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4	293	1.0M LiCl2, 0.1M Citric acid pH 4.0, 20% PEG 6000, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.59	α = 65.37
b = 70.153	β = 88.01
c = 77.868	γ = 69.82

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	IMAGE PLATE	MAR scanner 345 mm plate	Mirrors	2007-11-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.97627	ESRF	BM14

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.6	47.193	97.8	0.158	0.158	10.3	3.5	32115	31408		2	31.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.6	2.74	97.2		0.509	0.509	3.3	3.5	4642

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1LOX	2.6	47.19	31119	30444	1628	97.83	0.20976	0.20625	0.2757	RANDOM	20.945

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]
0.07	0.02	-0.06	-0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.866
r_dihedral_angle_4_deg	21.189
r_dihedral_angle_3_deg	16.592
r_dihedral_angle_1_deg	8.685
r_scangle_it	1.383
r_angle_refined_deg	1.309
r_angle_other_deg	0.968
r_scbond_it	0.907
r_mcangle_it	0.62
r_mcbond_it	0.531
r_symmetry_hbond_refined	0.365
r_xyhbond_nbd_refined	0.238
r_symmetry_vdw_other	0.233
r_nbd_refined	0.22
r_symmetry_vdw_refined	0.203
r_nbd_other	0.187
r_nbtor_refined	0.184
r_chiral_restr	0.149
r_nbtor_other	0.088
r_metal_ion_refined	0.079
r_mcbond_other	0.063
r_bond_refined_d	0.009
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7160
Nucleic Acid Atoms
Solvent Atoms	106
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
XDS	data reduction
SCALA	data scaling
MOLREP	phasing