2IC7

Crystal Structure of Maltose Transacetylase from Geobacillus kaustophilus

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7	293	1 MICROLITER DROPS CONTAINING EQUAL VOLUMES OF PROTEIN CONCENTRATE (10 MG/ML) AND RESERVOIR SOLUTION CONTAINING 3.5M Sodium Formate pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K, pH 7.00

Crystal Properties
Matthews coefficient	Solvent content
2.74	55.21

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 99.479	α = 90
b = 104.478	β = 101.85
c = 65.579	γ = 90

Symmetry
Space Group	C 1 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	MARMOSAIC 300 mm CCD	ROSENBAUM	2006-08-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID		APS	22-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.78	50	98.2	0.056	42.95	6.7		61137		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.78	1.84	87.5		0.17	9.27	5.2

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1OCX	1.78	40.52	58037	58037	3100	100	0.179	0.178	0.18	0.206	0.21	RANDOM	21.13

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]
0.95		1.45	-1.26		0.91

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.193
r_dihedral_angle_1_deg	15.834
r_dihedral_angle_4_deg	13.746
r_dihedral_angle_3_deg	12.207
r_scangle_it	3.849
r_scbond_it	2.384
r_angle_refined_deg	1.467
r_mcangle_it	1.374
r_mcbond_it	0.895
r_nbtor_refined	0.307
r_symmetry_hbond_refined	0.201
r_nbd_refined	0.199
r_symmetry_vdw_refined	0.179
r_xyhbond_nbd_refined	0.177
r_chiral_restr	0.115
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
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_refined
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	4341
Nucleic Acid Atoms
Solvent Atoms	595
Heterogen Atoms

Software

Software
Software Name	Purpose
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
CCP4	phasing