2AJT

Crystal structure of L-Arabinose Isomerase from E.coli

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	PEG 3350, Trisodium citrate dihydrate, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 116.539	α = 90
b = 116.539	β = 90
c = 214.33	γ = 120

Symmetry
Space Group	P 32 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 QUANTAM Q315	Mirrors	2005-04-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	0.979	NSLS	X29A

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	2.6	19.84		0.076	0.076	16.3	4.1	44290	44290

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	2.6	2.69	98.3		0.6	0.6	2	3.6

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	SAD	THROUGHOUT	NONE	2.6	19.84	42044	42044	2246	84.5	0.2203	0.21726	0.27796	RANDOM	63.114

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]
2.55	1.27		2.55		-3.82

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.335
r_dihedral_angle_4_deg	19.838
r_dihedral_angle_3_deg	17.36
r_dihedral_angle_1_deg	7.046
r_scangle_it	1.343
r_angle_refined_deg	1.287
r_scbond_it	0.842
r_angle_other_deg	0.806
r_mcangle_it	0.572
r_mcbond_it	0.365
r_symmetry_vdw_other	0.28
r_nbd_refined	0.227
r_symmetry_hbond_refined	0.188
r_nbd_other	0.187
r_symmetry_vdw_refined	0.182
r_nbtor_refined	0.18
r_xyhbond_nbd_refined	0.171
r_nbtor_other	0.087
r_chiral_restr	0.071
r_mcbond_other	0.06
r_bond_refined_d	0.01
r_xyhbond_nbd_other	0.007
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11392
Nucleic Acid Atoms
Solvent Atoms	88
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SHELXD	phasing
SOLVE	phasing