3KG6

Dehydratase domain from CurF module of Curacin polyketide synthase

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3KG9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8	293	14% (w/v) PEG 4000, 200 mM CaCl2, 10% (v/v) glycerol, 2 mM DTT, 100 mM Tris pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 87.379	α = 90
b = 198.385	β = 90
c = 146.764	γ = 90

Symmetry
Space Group	C 2 2 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 300 mm CCD	MIRRORS	2007-06-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D		APS	23-ID-D

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	2.7	50	100	0.109	0.109	18.1	7.4		35542

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	2.7	2.8	100		0.792		6.4

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	3KG7	2.7	41.89	35270	33290	1980	99.16	0.21549	0.21254	0.2651	RANDOM	70.591

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]
-3.06			-1.42		4.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.279
r_dihedral_angle_3_deg	15.946
r_dihedral_angle_4_deg	13.981
r_dihedral_angle_1_deg	5.025
r_mcangle_it	1.389
r_angle_refined_deg	0.918
r_scangle_it	0.885
r_mcbond_it	0.809
r_scbond_it	0.58
r_nbtor_refined	0.299
r_symmetry_vdw_refined	0.185
r_nbd_refined	0.172
r_symmetry_hbond_refined	0.172
r_xyhbond_nbd_refined	0.12
r_chiral_restr	0.061
r_symmetry_metal_ion_refined	0.056
r_metal_ion_refined	0.051
r_bond_refined_d	0.006
r_gen_planes_refined	0.002
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8802
Nucleic Acid Atoms
Solvent Atoms	52
Heterogen Atoms	5

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
RESOLVE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling