Table 2.
Caseicin variant characteristics
| Caseicin sequence | Predicted mass (kDa) | Actual mass (kDa) | Amino acid change(s) | pI | Hydrophobicity | % hydrophobic residues |
|---|---|---|---|---|---|---|
| IKHQGLPQE | 1,049 | 1,049.57 | Caseicin A wild type | 7.8 | 0.3 | 44 |
| IAAAGLPQE | 869 | 869.5 | K2A, H3A, Q4A | 3.3 | −0.2 | 22 |
| AKHQGLPQE | 1,007 | 1,007.5 | I1A | 7.8 | 0.4 | 44 |
| IKHQGLPQA | 991 | 991.5 | E9A | 10.1 | −0.1 | 33 |
| IKHAGLPQE | 992 | 992.5 | Q4A | 7.8 | 0.2 | 33 |
| IKHRGLPQE | 1,077 | 1,077.4 | Q4R | 10.1 | 0.6 | 44 |
| IKHQGRPQE | 1,092 | 1,092.4 | L6R | 10.1 | 0.8 | 56 |
| IRHQGLPQE | 1,077 | 1,077.6 | K2R | 7.9 | 0.3 | 44 |
| IRRQGLPE | 968 | 968.5 | K2R, H3R, minus-Q8 | 10.9 | 0.7 | 50 |
| IHHQGLPQE | 1,058 | 1,058.5 | K2H | 6.0 | −0.1 | 33 |
| IKQGLPQE | 912 | 912.5 | Minus-H3 | 6.9 | 0.4 | 50 |
| IHQGLPQE | 921 | 921.6 | Minus-K2 | 5.1 | −0.1 | 38 |
| IKHQGLPQEE | 1,178 | 1,178.6 | Plus-E10 | 5.3 | 0.5 | 50 |
| IKHQGLPQED | 1,164 | 1,164.7 | Plus-D10 | 6.2 | 0.5 | 50 |
| VLNENLLR | 970 | 970.5 | Caseicin B wild type | 7.0 | −0.1 | 50 |
| VLNENLAA | 843 | 843.3 | L7A, R8A | 3.3 | −0.3 | 38 |
| VLNENLRR | 1,013 | 1,013.6 | L7R | 10.9 | 0.5 | 63 |
| VLNENAAR | 886 | 886.5 | L6A, L7A | 7.0 | 0.3 | 50 |
| VINENLLR | 970 | 970.6 | L2I | 7.0 | −0.1 | 50 |
| VLNANLLR | 912 | 912.7 | E4A | 11.0 | −0.5 | 38 |
| VLNEALLR | 927 | 927.5 | N5A | 7.0 | −0.2 | 38 |
| VLNENLLH | 951 | 951.5 | R8H | 5.1 | −0.5 | 38 |
| VLNENARL | 928 | 928.5 | L7R, L6A, R8L | 7.0 | 0.1 | 50 |
| VALNENLLR | 1,041 | 1,041.6 | Plus-A2 | 7.0 | −0.1 | 44 |
| VLNDNLLR | 956 | 956.5 | E4D | 6.8 | −0.1 | 50 |
| VLNENLLK | 942 | 942.7 | R8K | 6.9 | −0.1 | 50 |
| VLNNLLR | 841 | 841.4 | Minus-E4 | 11.0 | −0.5 | 43 |
| VANENLLR | 928 | 928.4 | L2A | 7.0 | 0.1 | 50 |