4GHE

Structure of Y257F variant of Homoprotocatechuate 2,3-Dioxygenase from B.fuscum in complex with 4-nitrocatechol at 1.60 Ang resolution

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3OJT

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	13% PEG6000, 0.1M calcium chloride, 0.1M Tris-HCl. Cryoprotectant 25% PEG400. Ligand soaking: 2mM 4-nitrocatechol for 40min in anaerobic glovebox atmosphere prior to cryo-cooling in liquid nitrogen. , pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 110.513	α = 90
b = 150.116	β = 90
c = 96.169	γ = 90

Symmetry
Space Group	P 21 21 2

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 315r		2010-12-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SOLEIL BEAMLINE PROXIMA 1	0.9801	SOLEIL	PROXIMA 1

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	1.6	42.3	98.8	0.041	12.8	3.3	207338	207338		-3

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	1.6	1.69	99.1		0.407	2.1	3.3	30148

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	3OJT	1.6	42.3	196947	10336	98.56	0.15663	0.15507	0.18612	RANDOM	22.436

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]
-0.07					0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.883
r_dihedral_angle_4_deg	17.95
r_dihedral_angle_3_deg	12.65
r_dihedral_angle_1_deg	7.146
r_angle_refined_deg	1.52
r_angle_other_deg	0.932
r_chiral_restr	0.101
r_bond_refined_d	0.012
r_gen_planes_refined	0.009
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.883
r_dihedral_angle_4_deg	17.95
r_dihedral_angle_3_deg	12.65
r_dihedral_angle_1_deg	7.146
r_angle_refined_deg	1.52
r_angle_other_deg	0.932
r_chiral_restr	0.101
r_bond_refined_d	0.012
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11524
Nucleic Acid Atoms
Solvent Atoms	1607
Heterogen Atoms	153

Software

Software
Software Name	Purpose
MX	data collection
REFMAC	refinement
XDS	data reduction
SCALA	data scaling

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.