Table IV.
Recognition of MART1–related peptides by Jurkat 76/CD8αβ reconstituted with A2/MART1 TCRs
TRBV27 chain
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No. | Protein | Peptide sequence | Cl.413 | Cl.523 | Cl.788 | Cl.1086 | Cl.758 | Cl.1593 | Cl.1574 | Cl.1606 | Cl.1599 | Cl.830 | Cl.794 | DMF5 |
1 | KIAA0935 | RVTDEAGHPV | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
2 | cMOAT2 | NVADIGLHDV | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
3 | SLC1A1 | VLTGLAIHSI | <10 | <10 | <10 | <10 | <10 | <10 | 29 | 42 | <10 | <10 | <10 | <10 |
4 | P47 | RISDIRLFIV | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
5 | Prostaglandin transporter | LLAGIGTVPI | 100 | 248 | 153 | 100 | 205 | 272 | 296 | 277 | 241 | 189 | 283 | 174 |
6 | ABC transporter MOAT-C | RISDIGLADL | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
7 | KIAA0735 | LISGIGIGGA | <10 | 33 | <10 | <10 | <10 | 32 | 100 | 111 | 31 | 23 | 36 | <10 |
8 | Hypothetical 20 kD protein | RISAIILHPN | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
9 | Endothelin-1 receptor | RVQGIGIPLV | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
10 | G-protein coupled receptor RE2 | RITDLGLSPH | <10 | 64 | 35 | <10 | 124 | 43 | 215 | 213 | 168 | 17 | 248 | 80 |
11 | IGHG1 | RLSELAIFGV | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
12 | Monocarboxylate transporter 8 | AVAFIGLHTS | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
13 | MRP3 | NVADIGFHDV | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
14 | Wild type MART1 | AAGIGILTV | 20 | 102 | 100 | 163 | 198 | 270 | 235 | 216 | 218 | 112 | 272 | 144 |
Peptide recognition was assessed using T2 cells loaded with 10 μg/ml of the indicated peptide as stimulator cells in IL-2 ELISPOT assays. Thirteen MART1-related peptides were reported by Dutoit et al. (53). Fifty thousand Jurkat 76/CD8αβ cells, which were individually transduced with eleven distinct TRBV27 TCRβ chains along with SIG35α or with DMF5αβ chains, were used as responder cells. Mean values of SFUs in triplicate samples are shown.