TABLE 2.
Amino acid composition of an antimicrobial protein purified from acid extract of human terminal ileal mucosaa
| Amino acid | % Composition by molecular weight |
|---|---|
| Aspartic acid | 3.1 |
| Glutamic acid | 4.2 |
| Serine | 8.2 |
| Glycine | 7.6 |
| Histidine | 0.1 |
| Arginine | 2.6 |
| Threonine | 6.3 |
| Alanine | 21.6 |
| Proline | 11.4 |
| Tyrosine | 0.6 |
| Valine | 4.7 |
| Methionine | 0.0 |
| Isoleucine | 1.0 |
| Leucine | 4.8 |
| Phenylalanine | 0.7 |
| Lysine | 22.7 |
a
Acid extract of ileal mucosa was fractionated by cation-exchange chromatography and RP-HPLC. The amino acid composition of the purified protein present in fraction H (Fig. 2) was determined.