6MI1

CRYSTAL STRUCTURE ANALYSIS OF THE VARIANT PLANT EXOHYDROLASE ARG158ALA-GLU161ALA IN COMPLEX WITH METHYL 6-THIO-BETA-GENTIOBIOSIDE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	EVAPORATION	7	278	75MM HEPES-NAOH PH7.0, 1.2% PEG 400, 1.7M AMMONIUM SULPHATE , VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K

Crystal Properties
Matthews coefficient	Solvent content
3.63	66.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.717	α = 90
b = 101.717	β = 90
c = 183.451	γ = 90

Symmetry
Space Group	P 43 21 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	ADSC QUANTUM 210r	COLLIMATING MIRROR	2013-11-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX1	0.9537	Australian Synchrotron	MX1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.3	88.96	99.3	68.4	28		41138

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.36	99.5

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	1IEQ	2.3	39.13	41138	2175	99.33	0.16982	0.16751	0.21408	RANDOM	38.832

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]
0.93			0.93		-1.87

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.301
r_dihedral_angle_4_deg	20.839
r_dihedral_angle_3_deg	14.628
r_dihedral_angle_1_deg	7.827
r_long_range_B_other	6.208
r_long_range_B_refined	6.199
r_scangle_other	5.149
r_scbond_it	3.56
r_scbond_other	3.495
r_mcangle_it	3.366
r_mcangle_other	3.366
r_mcbond_it	2.367
r_mcbond_other	2.366
r_angle_refined_deg	1.985
r_angle_other_deg	1.514
r_chiral_restr	0.085
r_bond_refined_d	0.014
r_gen_planes_refined	0.011
r_gen_planes_other	0.002
r_bond_other_d	0.001
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4586
Nucleic Acid Atoms
Solvent Atoms	330
Heterogen Atoms	141

Software

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