| 摘要 |
<p>A polypeptide comprising a chromogenic amino acid. The chromogenic amino acid is flanked by at least one amino acid to the N and C termini thereof. The amine group of the chromogenic amino acid has a pKa of less than 5. The chromogenic amino acid is capable of reacting with a conjugated aldehyde. The polypeptide comprises a target sequence for a target protease which is capable of cleaving the peptide bond comprising the amino group of the chromogenic amino acid.</p> |
