6FRM

Crystal Structure of coenzyme F420H2 oxidase (FprA) co-crystallized with 10 mM Tb-Xo4

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		291	FprA native (about 90 % pure) at 43 g/l + 10 mM Xo4, crystallized at 291 K under anaerobic condition (95% N2 / 5% H2) in Combiclover Junior plate from Jena Bioscience. The protein was crystallized by mixing 1 ul protein of this mix with 1 ul of the mother liquor containing 20% w/v PEG 8000, 100 mM HEPES pH 7.5, 200 mM Ammonium sulfate and 10 % v/v 2-propanol. Prior to freezing in liquid nitrogen, the crystal was soaked for few seconds in a cryo-protected solution containing: 20% w/v PEG 8000, 100 mM HEPES pH 7.5, 200 mM Ammonium sulfate, 10 % v/v 2-propanol, 25 % v/v glycerol.

Crystal Properties
Matthews coefficient	Solvent content
2.46	49.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.17	α = 90
b = 147.875	β = 90.4
c = 146.059	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	PIXEL	DECTRIS PILATUS3 S 6M		2017-08-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	1.07227	ESRF	ID29

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	2.19	48.69	99	0.044	9	6.7		181493			44.22

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.19	2.31			0.534

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	2OHH	2.2	48.69	178580	8913	98.8	0.178	0.177	0.209	RANDOM	52.27

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]
-3.0461		2.1485	0.7493		2.2968

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	18.63
t_omega_torsion	1.82
t_angle_deg	1.16
t_bond_d	0.01
t_dihedral_angle_d
t_incorr_chiral_ct
t_pseud_angle
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	25515
Nucleic Acid Atoms
Solvent Atoms	1609
Heterogen Atoms	343

Software

Software
Software Name	Purpose
BUSTER	refinement
XDS	data reduction
SCALA	data scaling
PHASER	phasing