6IYO

Crystal Structure of the acyltransferase domain from the second module of the salinomycin polyketide synthase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	293	0.1M Tris pH 7.5, 0.2M NaCl, 23% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.093	α = 90
b = 73.367	β = 90
c = 248	γ = 90

Symmetry
Space Group	P 2 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	CCD	MARMOSAIC 225 mm CCD		2016-05-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRF BEAMLINE BL17U1	0.9792	SSRF	BL17U1

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	2.2	50	90.7	0.087	21.7	7.2		40302

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	2.2	2.28	87.9		0.506	4.7	7.5

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	2HG4	2.2	50	40302	2111	90.7	0.221	0.219	0.26	RANDOM	51.22

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]
1.93			-2.37		0.44

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.913
r_dihedral_angle_3_deg	21.24
r_dihedral_angle_4_deg	19.731
r_long_range_B_refined	11.43
r_long_range_B_other	11.43
r_scangle_other	8.445
r_dihedral_angle_1_deg	8.381
r_mcangle_other	5.947
r_mcangle_it	5.946
r_scbond_it	5.626
r_scbond_other	5.625
r_mcbond_it	4.226
r_mcbond_other	4.224
r_angle_refined_deg	1.146
r_angle_other_deg	0.754
r_chiral_restr	0.08
r_gen_planes_refined	0.013
r_bond_refined_d	0.009
r_gen_planes_other	0.006
r_bond_other_d	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6232
Nucleic Acid Atoms
Solvent Atoms	36
Heterogen Atoms

Software

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