6PO0

The structure of the orthorhombic (P212121) crystal form of beef liver catalase at 1.85 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	298	Crystals grown from 20 mM magnesium formate in 0.1 M Mes pH 6.5 reservoirs with drops equal amounts of 40 mg/ml catalase in water and the reservoir solution. Generally 2 to 6 days at room temperature.

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 83.984	α = 90
b = 140.386	β = 90
c = 228.177	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	173	PIXEL	DECTRIS PILATUS 300K		2018-07-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.1158	ALS	8.3.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	1.75	228.18	74.7	0.152	0.156	0.033	0.999	12.6	21.1		202103

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.78	8.9		6.333	7.314	3.52	0.062		3.7

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	1.75	119.57	191814	10179	74.62	0.1748	0.1731	0.2066	RANDOM	43.244

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]
2.23			-2.77		0.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.019
r_dihedral_angle_4_deg	19.425
r_dihedral_angle_3_deg	14.281
r_dihedral_angle_1_deg	6.745
r_angle_refined_deg	1.434
r_angle_other_deg	1.325
r_chiral_restr	0.069
r_bond_refined_d	0.008
r_gen_planes_refined	0.007
r_gen_planes_other	0.003

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.019
r_dihedral_angle_4_deg	19.425
r_dihedral_angle_3_deg	14.281
r_dihedral_angle_1_deg	6.745
r_angle_refined_deg	1.434
r_angle_other_deg	1.325
r_chiral_restr	0.069
r_bond_refined_d	0.008
r_gen_planes_refined	0.007
r_gen_planes_other	0.003
r_bond_other_d

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	16068
Nucleic Acid Atoms
Solvent Atoms	1275
Heterogen Atoms	588

Software

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

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 R01GM157729.