1OQ9

The Crystal Structure of the Complex between Stearoyl Acyl Carrier Protein Desaturase from Ricinus Communis (Castor Bean) and Acetate.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	293	12-15% Peg4000, 80mM Cacodylate, 200mM Magnesium Acetate, 75mM Ammonium Sulphate, 0.2% Octyl glucoside, 20% Glycerol, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.65	53.15

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 94.11	α = 90
b = 94.11	β = 90
c = 81.783	γ = 120

Symmetry
Space Group	P 31 1 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	ADSC QUANTUM 4		2001-06-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X12B	0.987	NSLS	X12B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.4	25	99.4	0.043	13.5		16342	16245	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.53	98.9		0.283	2.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.4	25	16342	15426	819	99.42	0.21812	0.21812	0.21582	0.26447	RANDOM	44.845

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]
1.02	0.51		1.02		-1.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	4.691
r_scangle_it	1.744
r_scbond_it	1.059
r_angle_refined_deg	1.024
r_mcangle_it	0.658
r_mcbond_it	0.341
r_symmetry_hbond_refined	0.2
r_nbd_refined	0.189
r_symmetry_vdw_refined	0.149
r_xyhbond_nbd_refined	0.147

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	4.691
r_scangle_it	1.744
r_scbond_it	1.059
r_angle_refined_deg	1.024
r_mcangle_it	0.658
r_mcbond_it	0.341
r_symmetry_hbond_refined	0.2
r_nbd_refined	0.189
r_symmetry_vdw_refined	0.149
r_xyhbond_nbd_refined	0.147
r_chiral_restr	0.069
r_bond_refined_d	0.009
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2743
Nucleic Acid Atoms
Solvent Atoms	73
Heterogen Atoms	6

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
AMoRE	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.