Table 1.
Assignment of the infrared bands distinguishable in the second derivatives of Clr-11/monomeric NKR-P1BSD/dimeric NKR-P1BSD/NKR-P1BWAG receptors FTIR spectra shown in Fig. 7 (ν corresponds to stretching, δ to bending, as to anti-symmetrical, and s to symmetrical vibrations).
| Frequency (cm−1) | Assignment | References |
|---|---|---|
| 1227/—/—/— | β-sheet (amide III)/His | 39,54–56 |
| 1242/1236/1236/1236 | β-sheet (amide III)/Tyr–OH | 39,54–56 |
| 1265/1246/1246/1244 | coil (amide III)/Tyr–OH | 39,54–56 |
| 1290/1292/1292/1288 | β-turns (amide III) | 54,55 |
| 1317/1315/1315/1315 | α-helix (amide III) | 54,55 |
| 1362/1350/1350/1342 | Trp | 39,56 |
| 1400/1400/1400/1398 | Asp/Glu (νsCOO–) | 39,56 |
| —/—/—/1419 | Trp/Pro? | 39,56 |
| 1439/1439/1439/1440 | δCH2, Pro (νCN), His–(δCH & δCN) | 39,56 |
| 1456/1458/1460/1460 | δCH2, δCH3/Tyr/Trp? | 39,56 |
| 1489/—/1490/1489 | Trp? (νCC ring & δCH) | 39,56 |
| —/1499/1500/1499 | Phe/Tyr–O– (νCC ring)? | 39,56 |
| 1518/1519/1516/1516 | Tyr–OH (νCC ring & δCH) | 39,56 |
| —/—/—/1533 | amide II | 40,56 |
| —/—/—/1545 | amide II | 40,56 |
| 1549/1551/1550/— | amide II | 40,56 |
| —/—/—/1555 | amide II | 40,56 |
| 1568/—/1568/1568 | Asp/Glu (νasCOO−) | 39,56 |
| 1597/1587/1583/1582 | Tyr (νCC ring) | 39,56 |
| —/1601/—/— | Tyr–O– (νCC ring)? | 39,56 |
| —/—/1610/1610 | Tyr (νCC ring) | 39,56 |
| 1637/1639/1639/1639 | β-sheet (amide I) | 40,57 |
| 1661/1652/1659/1657 | α-helix/coil/turns (amide I) | 40,57 |
| 1689/1688/1689/1689 | β-sheet antiparallel/ turns (amide I) | 40,57 |
| —/—/1726/1726 | Asp/Glu (νC=O) | 39,54,56 |
| —/1741/1745/1747 | Asp/Glu (νC=O) | 39,54,56 |