TABLE 2.

Summary of proliferation results for PBMC stimulated with groups of P-4 peptides^a

Peptide group	SI for patient:																Total no. of responsive patients
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
I	—b	6.8	—	2.8	—	—	—	2.6	—	—	—	—	2.6	3.4	—	—	5
II	—	9.2	5.2	2.6	—	—	—	2.6	—	—	—	—	—	—	—	—	4
III	—	7.7	—	—	—	—	—	3.0	—	—	—	—	—	5.0	—	—	3
IV	—	8.1	—	—	—	—	2.5	—	—	—	—	—	3.1	3.0	—	—	4
V	—	4.5	—	2.6	—	—	3.5	—	—	—	—	—	—	2.9	—	—	4
VI	—	6.5	—	—	—	—	3.1	—	—	—	—	—	—	4.3	—	—	3
VII	—	—	—	—	—	—	2.5	—	—	—	—	—	—	7.6	—	—	2
VIII	—	4.2	—	—	—	—	2.8	2.9	—	—	2.5	—	—	5.5	—	—	5

^aPBMC from patients 1 through 16 were stimulated with groups of peptides as described in Material and Methods. After 5 days of antigenic stimulation, [³H]thymidine incorporation was measured as a marker of cell proliferation. 

^b—, SI of <2.5.