8TY0

Streptavidin variant S112E-K121H bound to bis-biotinylated Iron-porphyrin

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SLS BEAMLINE X06SA
Synchrotron site	SLS
Beamline	X06SA
Temperature [K]	100
Detector technology	PIXEL
Collection date	2023-03-31
Detector	DECTRIS EIGER X 16M
Wavelength(s)	1.0
Spacegroup name	C 1 2 1
Unit cell lengths	192.487, 57.720, 57.770
Unit cell angles	90.00, 107.44, 90.00

Refinement procedure

Resolution	55.110 - 1.540
R-factor	0.1743
Rwork	0.173
R-free	0.19080
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.016
RMSD bond angle	2.467
Data reduction software	MOSFLM
Data scaling software	SCALA
Phasing software	PHASER
Refinement software	PHENIX (1.20.1_4487)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	55.110	1.600
High resolution limit [Å]	1.540	1.540
Rmerge	0.072	0.408
Rmeas	0.085	0.481
Rpim	0.043	0.249
Number of reflections	84181	8699
<I/σ(I)>	9.09	2.57
Completeness [%]	94.3	97.66
Redundancy	3.6
CC(1/2)	0.996	0.795

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	4.5	293	0.2 M ammonium sulfate, 0.1 M sodium acetate pH 4.5 , 20% PEG 4000