6A6Q

Crystal structure of a lignin peroxidase isozyme H8 variant that is stable at very acidic pH

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	293	PEG 6000

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.212	α = 90
b = 99.621	β = 113.86
c = 48.322	γ = 90

Symmetry
Space Group	P 1 21 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	ADSC QUANTUM 270		2018-05-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PAL/PLS BEAMLINE 7A (6B, 6C1)	0.9793	PAL/PLS	7A (6B, 6C1)

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	1.66	50	97.7	0.078	0.093	0.049	0.985	32.06	3.2		40502

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.66	1.69	94.4		0.296	0.803	5.1	2.6

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	1b80	1.67	29.72	38505	1982	97.33	0.1429	0.1415	0.1707	RANDOM	21.237

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]
1.7		1.01	-1.29		-0.93

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.869
r_dihedral_angle_4_deg	20.421
r_dihedral_angle_3_deg	13.547
r_dihedral_angle_1_deg	6.107
r_angle_refined_deg	2.066
r_angle_other_deg	1.138
r_chiral_restr	0.101
r_bond_refined_d	0.016
r_gen_planes_refined	0.014
r_gen_planes_other	0.014

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.869
r_dihedral_angle_4_deg	20.421
r_dihedral_angle_3_deg	13.547
r_dihedral_angle_1_deg	6.107
r_angle_refined_deg	2.066
r_angle_other_deg	1.138
r_chiral_restr	0.101
r_bond_refined_d	0.016
r_gen_planes_refined	0.014
r_gen_planes_other	0.014
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2605
Nucleic Acid Atoms
Solvent Atoms	249
Heterogen Atoms	63

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	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.