6BI4

2.9 Angstrom Resolution Crystal Structure of dTDP-Glucose 4,6-dehydratase (rfbB) from Bacillus anthracis str. Ames in Complex with NAD.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1R66

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	295	PROTEIN: TOTAL RFBB AND RFBC AT 7.5 MG/ML IN 10 MM TRIS HCL PH 8.3, 500 MM NACL, 5 MM BME, 10% GLYCEROL, 5 MM MGCL2, AND 1 MM NAD+. SCREEN: 0.1 M TRIS HCL PH 8.0, 1.56 M AMMONIUM SULFATE, AND 8.5% (W/V) PEG3350. CRYO-PROTECTANT SOLUTION: 1:1 RATIO OF 3.6 M AMMONIUM SULFATE AND 50% SUCROSE.

Crystal Properties
Matthews coefficient	Solvent content
3.14	60.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 165.557	α = 90
b = 165.557	β = 90
c = 292.121	γ = 90

Symmetry
Space Group	I 4 2 2

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	C(111)	2012-02-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.97856	APS	21-ID-G

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	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	2.9	30	99.9	0.15	0.15	0.158	0.051	13	9.4		44858		-3	69.2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.9	2.95	100		0.771	0.771	0.813	0.256	0.843	2.9	9.7

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	1R66	2.91	29.95	42594	2264	99.73	0.16928	0.16742	0.20436	RANDOM	66.28

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]
-3.8			-3.8		7.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.624
r_dihedral_angle_4_deg	15.03
r_dihedral_angle_3_deg	11.72
r_dihedral_angle_1_deg	2.864
r_angle_refined_deg	1.667
r_angle_other_deg	1.007
r_chiral_restr	0.116
r_bond_refined_d	0.01
r_gen_planes_refined	0.009
r_bond_other_d	0.005
r_gen_planes_other	0.005
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_mcbond_it
r_mcbond_other
r_mcangle_it
r_mcangle_other
r_scbond_it
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10012
Nucleic Acid Atoms
Solvent Atoms	76
Heterogen Atoms	294

Software

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