9CST

Streptavidin-E101Q-K121A bound to Cu(II)-biotin-ethyl-dipicolylamine cofactor

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL12-2
Synchrotron site	SSRL
Beamline	BL12-2
Temperature [K]	100
Detector technology	PIXEL
Collection date	2024-03-19
Detector	DECTRIS EIGER2 S 16M
Wavelength(s)	0.8856
Spacegroup name	I 41 2 2
Unit cell lengths	57.820, 57.820, 184.139
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	42.090 - 1.130
R-factor	0.1425
Rwork	0.141
R-free	0.16040
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.014
RMSD bond angle	1.474
Data reduction software	MOSFLM (7.4.0)
Data scaling software	Aimless
Phasing software	PHASER
Refinement software	PHENIX (1.20.1-4487-000)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	42.090	1.172
High resolution limit [Å]	1.130	1.130
Rmerge		3.208
Rmeas	0.764	3.229
Rpim	0.084	0.362
Number of reflections	58555	5764
<I/σ(I)>	60.09	2.15
Completeness [%]	99.7	99.88
Redundancy	79.7
CC(1/2)	0.946	0.784

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	4	293	ammonium sulfate, sodium acetate