3H50

CRYSTAL STRUCTURE OF A TETRACENOMYCIN POLYKETIDE SYNTHESIS PROTEIN (TCMJ) FROM XANTHOMONAS CAMPESTRIS PV. CAMPESTRIS AT 1.60 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	277	35.0% 2-propanol, 0.2M Zn(OAc)2, 0.1M Imidazole pH 8.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.19	43.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.92	α = 90
b = 72.03	β = 110.76
c = 32.75	γ = 90

Symmetry
Space Group	C 1 2 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 315	Flat mirror (vertical focusing)	2006-08-05	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.918370,0.979616,0.979305	SSRL	BL11-1

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	1.6	28.502	96.8	0.105	9.99	7.2		13913		-3	11.422

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	1.59	1.65	80.3		0.61	1.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.6	28.502	13912	696	98.9	0.184	0.182	0.22	RANDOM	13.12

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]
-1.16		0.27	1.29		0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.853
r_dihedral_angle_4_deg	11.829
r_dihedral_angle_3_deg	10.09
r_dihedral_angle_1_deg	6.621
r_angle_refined_deg	1.418
r_scangle_it	1.377
r_mcangle_it	1.281
r_scbond_it	0.957
r_mcbond_it	0.941
r_angle_other_deg	0.874
r_mcbond_other	0.225
r_symmetry_vdw_other	0.217
r_nbd_refined	0.207
r_symmetry_vdw_refined	0.204
r_nbd_other	0.193
r_nbtor_refined	0.173
r_xyhbond_nbd_refined	0.157
r_symmetry_hbond_refined	0.137
r_chiral_restr	0.085
r_nbtor_other	0.083
r_metal_ion_refined	0.064
r_symmetry_metal_ion_refined	0.048
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	855
Nucleic Acid Atoms
Solvent Atoms	152
Heterogen Atoms	12

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing