7NE4

E125A mutant of oligopeptidase B from S. proteomaculans with modified hinge region

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		277	200 mM Lithium sulfate, 100 mM Bis-Tris pH 5.5, 23% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.35	47.58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.84	α = 90
b = 98.56	β = 90
c = 108.26	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	RAYONIX MX-225		2019-03-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	KURCHATOV SNC BEAMLINE K4.4	0.8	KURCHATOV SNC	K4.4

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	2.717	44.9	99.92	0.061	8.45	6.18		20453

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	2.717	2.79			0.29	2.11

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	6TF5	2.717	44.85	19430	1023	99.92	0.2527	0.25	0.3056	RANDOM	28.828

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]
1.67			0.83		-2.5

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.549
r_dihedral_angle_3_deg	15.343
r_dihedral_angle_4_deg	14.574
r_dihedral_angle_1_deg	5.825
r_angle_refined_deg	1.023
r_angle_other_deg	0.904
r_chiral_restr	0.058
r_bond_refined_d	0.004
r_gen_planes_refined	0.002
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.549
r_dihedral_angle_3_deg	15.343
r_dihedral_angle_4_deg	14.574
r_dihedral_angle_1_deg	5.825
r_angle_refined_deg	1.023
r_angle_other_deg	0.904
r_chiral_restr	0.058
r_bond_refined_d	0.004
r_gen_planes_refined	0.002
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5531
Nucleic Acid Atoms
Solvent Atoms	50
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
SCALA	data scaling
PHASER	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.