8AQO

Streptavidin with a bisbiothinilated Fe4S4 cluster

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SLS BEAMLINE X06DA
Synchrotron site	SLS
Beamline	X06DA
Temperature [K]	100
Detector technology	PIXEL
Collection date	2022-04-10
Detector	DECTRIS PILATUS 2M-F
Wavelength(s)	0.9999994063608196
Spacegroup name	C 1 2 1
Unit cell lengths	114.778, 89.134, 57.709
Unit cell angles	90.00, 97.57, 90.00

Refinement procedure

Resolution	46.260 - 1.900
R-factor	0.1854
Rwork	0.184
R-free	0.21740
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	3pk2
RMSD bond length	0.010
RMSD bond angle	1.839
Data reduction software	XDS
Data scaling software	Aimless
Phasing software	PHASER
Refinement software	REFMAC (5.8.0352)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	46.260	1.940
High resolution limit [Å]	1.900	1.900
Number of reflections	44582	2816
<I/σ(I)>	19.3
Completeness [%]	98.4
Redundancy	6.9
CC(1/2)	0.999	0.864

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	25 % w/v PEG 1500 0.1 M boric acid pH 8.5 (anaerobic)