D-ile-phe-lys P-nitroanilide, identified by its CAS number 76626-41-0, is a synthetic peptide substrate commonly used in biochemical assays, particularly in the study of proteolytic enzymes. This compound features a sequence of amino acids, specifically D-ile (D-isoleucine), phe (phenylalanine), and lys (lysine), linked to a p-nitroanilide moiety. The p-nitroanilide group serves as a chromogenic indicator, allowing for the detection of enzymatic activity through a color change upon cleavage by specific proteases. The characteristics of this substance include its solubility in organic solvents and water, stability under standard laboratory conditions, and its role as a substrate in enzyme kinetics studies. Its use is particularly prevalent in research involving serine proteases and other enzymes that cleave peptide bonds. Overall, D-ile-phe-lys P-nitroanilide is a valuable tool in biochemical research for understanding enzyme mechanisms and kinetics.

D-ile-phe-lys P-nitroanilide

76626-41-0: D-ile-phe-lys P-nitroanilide, identified by its CAS number 76626-41-0, is a synthetic peptide substrate commonly used in biochemical assays, particularly in the study of proteolytic enzymes. This compound features a sequence of amino acids, specifically D-ile (D-isoleucine), phe (phenylalanine), and lys (lysine), linked to a p-nitroanilide moiety. The p-nitroanilide group serves as a chromogenic indicator, allowing for the detection of enzymatic activity through a color change upon cleavage by specific proteases. The characteristics of this substance include its solubility in organic solvents and water, stability under standard laboratory conditions, and its role as a substrate in enzyme kinetics studies. Its use is particularly prevalent in research involving serine proteases and other enzymes that cleave peptide bonds. Overall, D-ile-phe-lys P-nitroanilide is a valuable tool in biochemical research for understanding enzyme mechanisms and kinetics.

Patented by Chromogenix AB, Sweden (CH 622 285). A highly specific substrate for human plasmin. For rat plasmin, Heinemann et al. determined a Km of 18.3 μM. Also cleaved by transmembrane tryptase (TMT).

H-D-Ile-Phe-Lys-pNA

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CAS 76626-41-0

D-ile-phe-lys P-nitroanilide

H-D-Ile-Phe-Lys-pNA

Ref: 01-4008063

H-D-Ile-Phe-Lys-pNA trifluoroacetate salt

Ref: 3D-FI110729