6Y3Q

Streptavidin mutant S112R_K121E with a biotC5-1 cofactor - an artificial iron hydroxylase

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4	293	2 M (NH4)2SO4, 0.1 M Na-Acetate, pH 4

Crystal Properties
Matthews coefficient	Solvent content
2.93	58.02

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.261	α = 90
b = 57.261	β = 90
c = 182.104	γ = 90

Symmetry
Space Group	I 41 2 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	PIXEL	DECTRIS EIGER X 16M		2019-04-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	1.0000	SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	1.95	45.53	99.9	0.158	0.998	16.7	23.2		11556

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	1.95	2	100		3.472	0.84	1.2	23.1

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	3PK2	1.95	41.688	11399	866	98.718	0.212	0.2086	0.2576	31.331

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]
-0.21			-0.21		0.421

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	21.896
r_dihedral_angle_4_deg	21.273
r_dihedral_angle_3_deg	11.508
r_dihedral_angle_1_deg	8.548
r_lrange_it	5.929
r_lrange_other	5.888
r_scangle_it	4.62
r_scangle_other	4.52
r_mcangle_it	3.811
r_mcangle_other	3.809
r_scbond_it	3.368
r_scbond_other	3.241
r_mcbond_other	2.968
r_mcbond_it	2.967
r_angle_other_deg	2.56
r_angle_refined_deg	1.925
r_symmetry_nbd_other	0.222
r_nbd_other	0.211
r_nbd_refined	0.191
r_nbtor_refined	0.176
r_xyhbond_nbd_refined	0.172
r_symmetry_xyhbond_nbd_refined	0.146
r_symmetry_nbd_refined	0.134
r_symmetry_nbtor_other	0.081
r_chiral_restr	0.079
r_bond_other_d	0.038
r_gen_planes_other	0.015
r_bond_refined_d	0.012
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	901
Nucleic Acid Atoms
Solvent Atoms	61
Heterogen Atoms	22

Software

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