Table II.

X-ray crystallographic data collection

	HLA-A2/ALG	HLA-A2/ELA
Space group	P2₁2₁2₁	P2₁2₁2₁
Molecules in AU	1	1
Cell parameters (Å)	a = 49.45 b = 74.72 c = 123.72	a = 49.13 b = 75.51 c = 121.70
X-ray source/detector	APS 14-BM-C (Chicago, IL)/Quantum 4 CCD	CHESS A1 (Ithaca, NY)/Quantum 4 CCD
Resolution (Å)	30–2.15	30–1.8
Mosaicity	0.35	0.45
Total reflections	190647/19192^a	195422/9091^a
Unique reflections	25511/3085^a	41252/5003^a
Multiplicity	7.4/6.2^a	4.7/1.8^a
Completeness (%)	99.0/96.4^a	96.7/82.7^a
R _symm ^b	3.9/12.4^a	8.9/22.1^a
I/ς	36/8.2^a	9.1/3.1^a

a Highest resolution shell.
b R_symm = Σ |Ih − 〈Ih〉|/Σ Ih, where 〈Ih〉 is the average intensity over symmetry equivalents.