3A6O

Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase 2/acarbose complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP			VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.86	56.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 114.599	α = 90
b = 119.258	β = 90
c = 113.007	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	ADSC QUANTUM 4			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-6A		Photon Factory	BL-6A

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	2.8	38.81		0.084			35055	35055			70.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.8	38.81	35055	3455	100	0.16402	0.15706	0.23106	RANDOM	25.796

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]
1.83			-0.9		-0.93

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.741
r_dihedral_angle_4_deg	21.544
r_dihedral_angle_3_deg	19.89
r_dihedral_angle_1_deg	7.139
r_scangle_it	5.111
r_scbond_it	3.304
r_angle_refined_deg	2.493
r_mcangle_it	2.198
r_mcbond_it	1.298
r_nbtor_refined	0.338
r_symmetry_hbond_refined	0.303
r_symmetry_vdw_refined	0.276
r_nbd_refined	0.266
r_xyhbond_nbd_refined	0.198
r_chiral_restr	0.153
r_metal_ion_refined	0.146
r_bond_refined_d	0.029
r_gen_planes_refined	0.01
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_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	9550
Nucleic Acid Atoms
Solvent Atoms	406
Heterogen Atoms	112

Software

Software
Software Name	Purpose
ADSC	data collection
CNS	refinement
REFMAC	refinement
PROCESS	data reduction
SCALA	data scaling
CNS	phasing