6OV8

2.6 Angstrom Resolution Crystal Structure of Aminopeptidase B from Escherichia coli str. K-12 substr. MG1655

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	292	Protein: 8.2 mg/ml, 0.5M Sodium chloride, 0.01M Tris pH 8.3, 1mM Zn, 1mM Mn Screen: Classics II (F10), 0.2M Sodium chloride, 0.1M BIS-TRIS pH 5.5, 25% (w/v) PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.51	50.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 114.857	α = 90
b = 148.19	β = 90
c = 165.01	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	MARMOSAIC 300 mm CCD	C(111)	2019-04-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.9787	APS	21-ID-F

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	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	30	100	0.136	0.136	0.149	0.059	14.4	6.2		85965		-3	38.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.6	2.64	100		0.79	0.79	0.861	0.341	0.837	2.5	6.3

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	6OAD	2.61	29.76	81597	4240	99.56	0.18411	0.1813	0.2376	RANDOM	41.039

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]
3.14			1.36		-4.5

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	24.819
r_dihedral_angle_3_deg	11.52
r_dihedral_angle_4_deg	10.238
r_dihedral_angle_1_deg	4.224
r_long_range_B_refined	3.245
r_long_range_B_other	3.212
r_scangle_other	1.796
r_mcangle_it	1.708
r_mcangle_other	1.708
r_scbond_it	1.112
r_scbond_other	1.111
r_angle_refined_deg	1.042
r_mcbond_it	0.99
r_mcbond_other	0.99
r_angle_other_deg	0.291
r_gen_planes_refined	0.052
r_gen_planes_other	0.047
r_chiral_restr	0.042
r_bond_refined_d	0.003
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	19510
Nucleic Acid Atoms
Solvent Atoms	614
Heterogen Atoms	33

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHASER	phasing