7TA2

Crystal structure of the human sperm-expressed surface protein SPACA6

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 24-ID-C
Synchrotron site	APS
Beamline	24-ID-C
Temperature [K]	100
Detector technology	PIXEL
Collection date	2021-02-25
Detector	DECTRIS EIGER2 X 16M
Wavelength(s)	0.91165
Spacegroup name	P 21 21 21
Unit cell lengths	28.984, 46.522, 167.670
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	44.830 - 2.250
R-factor	0.2037
Rwork	0.201
R-free	0.25530
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	5jk9
Data reduction software	DIALS (v2.2.0)
Data scaling software	Aimless (0.7.4)
Phasing software	AutoSol
Refinement software	PHENIX (1.18.2_3874)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	44.830	44.830	2.320
High resolution limit [Å]	2.250	9.000	2.250
Rmerge	0.108	0.046	0.754
Rmeas	0.116	0.050	0.815
Rpim	0.041	0.018	0.303
Number of reflections	11487	234	1029
<I/σ(I)>	11.7
Completeness [%]	99.9	99.7	100
Redundancy	7.2	5.9	6.7
CC(1/2)	0.998	0.999	0.871

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP		298	Ammonium chloride, PEG 3350, FOS-choline-8