2IIK

Crystal Structure of human peroxisomal acetyl-CoA acyl transferase 1 (ACAA1)

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2C7Z

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	298	0.2M Amonium Sulphate, 0.1M Hepes, 25% PEG3350., pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.16	42.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.147	α = 90
b = 96.845	β = 90
c = 142.055	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	IMAGE PLATE	RIGAKU RAXIS HTC		2006-07-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.55	80.06	99	0.1099	9.65	3.66	25624	25358

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.55	2.65	96.2		0.401	2.17	2.79	2760

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2C7Z	2.55	80.06	25624	24037	1274	99	0.18108	0.17869	0.18	0.22345	0.22	RANDOM	21.615

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]
-0.82			1.76		-0.94

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.375
r_dihedral_angle_4_deg	15.936
r_dihedral_angle_3_deg	15.782
r_dihedral_angle_1_deg	6.42
r_scangle_it	2.314
r_scbond_it	1.516
r_angle_refined_deg	1.402
r_angle_other_deg	1.192
r_mcangle_it	0.733
r_mcbond_it	0.487
r_symmetry_vdw_refined	0.223
r_nbd_refined	0.217
r_nbd_other	0.195
r_symmetry_vdw_other	0.194
r_symmetry_hbond_refined	0.178
r_nbtor_refined	0.173
r_xyhbond_nbd_refined	0.141
r_mcbond_other	0.14
r_chiral_restr	0.091
r_nbtor_other	0.089
r_bond_refined_d	0.013
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5639
Nucleic Acid Atoms
Solvent Atoms	226
Heterogen Atoms

Software

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