9M6O

Crystal structure of S. aureus protein A bound to a camelid single-domain antibody

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRF BEAMLINE BL10U2
Synchrotron site	SSRF
Beamline	BL10U2
Temperature [K]	100
Detector technology	PIXEL
Collection date	2024-12-03
Detector	DECTRIS EIGER X 16M
Wavelength(s)	0.9792
Spacegroup name	P 21 21 21
Unit cell lengths	52.930, 78.480, 97.170
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	29.940 - 1.490
R-factor	0.2259
Rwork	0.224
R-free	0.25650
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.009
RMSD bond angle	1.025
Data reduction software	xia2
Data scaling software	xia2
Phasing software	PHENIX (1.21.1_5286)
Refinement software	PHENIX (1.21.1_5286)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	29.980	1.530
High resolution limit [Å]	1.490	1.490
Rmerge	0.101	1.316
Number of reflections	66808	4852
<I/σ(I)>	10.5
Completeness [%]	99.9
Redundancy	11.1
CC(1/2)	0.999	0.768

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP		293	25% w/v Polyethylene glycol 3350 and 0.1M Citric acid 3.5