3C3J

Crystal structure of tagatose-6-phosphate ketose/aldose isomerase from Escherichia coli

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		289	20% PEG 3350, 0.2M di-Ammonium citrate, 2.5 mM Glucose-6-phosphate, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.941	α = 90
b = 81.211	β = 90.21
c = 138.325	γ = 90

Symmetry
Space Group	P 1 21 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	Mirrors	2006-12-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97940	APS	19-ID

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	1.8	138.68	99.52	0.146	17.81	9.8	196168	195226		2	16

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	1.8	1.848	97.17		0.84	1.9	7.9	15168

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.8	47.46	195226	195226	10357	99.52	0.13844	0.13844	0.13597	0.18512	RANDOM	15.19

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]
-0.69		0.07	0.49		0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.337
r_dihedral_angle_3_deg	13.008
r_dihedral_angle_4_deg	12.535
r_dihedral_angle_1_deg	5.655
r_scangle_it	4.345
r_scbond_it	3.221
r_mcangle_it	1.698
r_mcbond_it	1.422
r_angle_refined_deg	1.39
r_angle_other_deg	0.999
r_mcbond_other	0.535
r_symmetry_vdw_other	0.315
r_symmetry_hbond_refined	0.235
r_nbd_refined	0.227
r_nbd_other	0.206
r_nbtor_refined	0.176
r_xyhbond_nbd_refined	0.174
r_symmetry_vdw_refined	0.167
r_chiral_restr	0.109
r_nbtor_other	0.088
r_bond_refined_d	0.014
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	16991
Nucleic Acid Atoms
Solvent Atoms	2294
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-2000	data reduction
HKL-2000	data scaling
HKL-3000	phasing