Table 1.

Neutralization phenotypes of primate lentiviruses.

Patient serum ID	IC50 in TZM-bl cells								Tier phenotype
	S321	C500	B520	G435	T520b	M263	M600c	HIVIG
								mg/ml
R5 SHIVDH12-V3AD8	321	289	77	172	168	429	134	132	2
R5 SHIVAD8EO	48	36	39	31	41	44	48	1,768	2
X4 SHIVDH12-CL7	110	94	50	65	109	115	65	530	2
HIV-1CAAN5342.A2	84	<20	27	<20	<20	77	185	638	2
HIV-1MN.3	13,944	9,152	822	8,432	3,968	43,722	1,709	1.81	1

IC₅₀ values are the serum dilution at which relative luminescence units (RLUs) were reduced 50% compared with virus control wells (no test sample).