3KG8

Dehydratase domain from CurJ 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	3KG7

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	18% PEG 3350, 2-10% 1,4 butanediol, 250 mM NaCl, 100 mM bis-Tris propane pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.416	α = 90
b = 70.345	β = 90
c = 174.812	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	CCD	MARMOSAIC 300 mm CCD	mirrors	2008-08-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	0.97945	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	2.45	50	98.7	0.092	0.092	15.6	6.6	21789	21789

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.45	2.54	95		0.799	0.799	2	6.3

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	3KG8	2.45	43.69	21731	20616	1115	97.71	0.19865	0.19543	0.25849	RANDOM	49.288

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]
-2.1			2.7		-0.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.127
r_dihedral_angle_4_deg	24.865
r_dihedral_angle_3_deg	17.552
r_dihedral_angle_1_deg	5.651
r_mcangle_it	3.585
r_scangle_it	3.41
r_scbond_it	2.505
r_mcbond_it	2.351
r_angle_refined_deg	1.171
r_nbtor_refined	0.308
r_nbd_refined	0.199
r_symmetry_vdw_refined	0.166
r_symmetry_hbond_refined	0.164
r_xyhbond_nbd_refined	0.138
r_chiral_restr	0.084
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
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_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
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	4503
Nucleic Acid Atoms
Solvent Atoms	74
Heterogen Atoms

Software

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