Table 3.
Amino acid composition of full-length h-fibroins of Trichoptera and terrestrial sister order Lepidoptera
| Residue | Trichoptera - retreat (n = 3) | Trichoptera - cocoon (n = 2) | Trichoptera - case (n = 6) | Terrestrial Lepidoptera (n = 4) |
|---|---|---|---|---|
| Gly (G) | 23.60 (1.71) | 33.55 (2.05) | 29.43 (1.73) | 31.14 (9.73) |
| Arg (R) | 9.43 (1.59) | 7.5 (1.5) | 13.12 (1.79) | 0.44 (0.11) |
| Lys (K) | 1.67 (0.48) | 1.3 (0.3) | 2.12 (0.52) | 0.32 (0.21) |
| His (H) | 2.03 (0.97) | 5.25 (1.75) | 1.12 (2.23) | 0.07 (0.04) |
| Ala (A) | 4.20 (0.50) | 1.75 (0.65) | 0.35 (0.30) | 29.00 (6.34) |
| Val (V) | 8.43 (0.37) | 6.25 (1.05) | 9.75 (0.74) | 3.01 (1.01) |
| Leu (L) | 5.20 (0.71) | 10.1 (0.7) | 6.93 (1.27) | 2.23 (2.28) |
| Ile (I) | 5.20 (0.22) | 7.3 (0.8) | 4.47 (0.84) | 1.36 (0.99) |
| Pro (P) | 10.77 (1.09) | 2.4 (0.3) | 4.78 (0.69) | 2.46 (2.02) |
| Ser (S) | 11.77 (0.50) | 12.1 (2.8) | 15.20 (1.27) | 13.66 (3.97) |
| Tyr (Y) | 5.10 (1.36) | 2.45 (1.35) | 2.95 (1.05) | 4.21 (1.61) |
| Asp (D) | 3.37 (1.39) | 1.5 (0.3) | 2.25 (0.48) | 0.61 (0.19) |
| Glu (E) | 2.60 (0.14) | 2.5 (0.1) | 2.97 (0.18) | 1.33 (0.57) |
| Thr (T) | 2.90 (0.37) | 3 (0.2) | 1.62 (0.30) | 0.91 (0.38) |
| Trp (W) | 1.87 (0.57) | 1.35 (0.25) | 2.52 (0.82) | 0.06 (0.08) |
The mean is given for each amino acid and group of Trichoptera/Lepidoptera. The standard derivation is given in parentheses. Amino acid composition for each species is given in Additional data Files: Data S1–S17.