9CYM

Structure of LAG3 bound to the MHC class II molecule I-A(b)

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL12-1
Synchrotron site	SSRL
Beamline	BL12-1
Temperature [K]	100
Detector technology	PIXEL
Collection date	2024-03-21
Detector	DECTRIS EIGER X 16M
Wavelength(s)	0.9794
Spacegroup name	P 65 2 2
Unit cell lengths	187.652, 187.652, 124.057
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	38.610 - 3.840
R-factor	0.2619
Rwork	0.260
R-free	0.30680
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.002
RMSD bond angle	0.533
Data reduction software	XDS
Data scaling software	XSCALE
Phasing software	PHASER
Refinement software	PHENIX (1.21.1_5286)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	38.610	17.170	3.940
High resolution limit [Å]	3.840	12.140	3.840
Rmerge	0.199	0.021	2.676
Rmeas	0.210	0.022	2.867
Number of reflections	12347	301	515
<I/σ(I)>	11.49
Completeness [%]	96.6
Redundancy	10
CC(1/2)	0.999	1.000	0.946

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	8	293.15	0.15 M Ammonium sulfate, 0.1 M Tris 8.0 and 15 % w/v PEG 4000