1OCX

E. coli maltose-O-acetyltransferase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6		HANGING DROP CRYSTALLIZATION CRYSTALS FORM IN A 3 UL (RESERVOIR) + 1 UL (PROTEIN AT 15 MG/ML) DROP WITH RESERVOIR 0.1 M NA CITRATE PH 5.6, 3% ETHANOL, 15 % PEG 4000). ADDITION OF 6 UL OF RESERVOIR AND 1 UL OF 50 MM TRIMETHYL LEAD ACETATE CAUSES CRYSTAL DISSOLUTION AND GROWTH OF CRYSTALS WITH DIFFERENT HABIT FROM WHICH THE STRUCTURE WAS SOLVED.

Crystal Properties
Matthews coefficient	Solvent content
2.51	51.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.623	α = 90
b = 106.238	β = 90
c = 175.433	γ = 90

Symmetry
Space Group	C 2 2 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				M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4		ESRF	ID14-4

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	2.15	15	99.7	0.061		3.7		33084

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	2.15	2.23	99.8		0.396

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 (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	THROUGHOUT	2.15	15	28344	3117	94.9	0.198	0.194	0.235	RANDOM	15.39

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]
0.92			0.3		-1.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	16.77
r_dihedral_angle_1_deg	4.685
r_scangle_it	2.775
r_scbond_it	1.75
r_angle_refined_deg	1.554
r_mcangle_it	0.9
r_angle_other_deg	0.764
r_mcbond_it	0.492
r_symmetry_vdw_other	0.418
r_symmetry_vdw_refined	0.355
r_nbd_refined	0.239
r_nbd_other	0.217
r_xyhbond_nbd_refined	0.187
r_symmetry_hbond_refined	0.168
r_xyhbond_nbd_other	0.109
r_chiral_restr	0.086
r_bond_refined_d	0.016
r_gen_planes_refined	0.006
r_gen_planes_other	0.003
r_bond_other_d	0.001
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_nbtor_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4212
Nucleic Acid Atoms
Solvent Atoms	304
Heterogen Atoms	20

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling