Product Number: 878-02


SKU: 878-02 Category: Tag:

Molecular Weight: 869.08
Salt Form: TFA
Purity: >95%
Sequence (3-letter): Ac-Lys-Gln-Lys-Leu-Arg-MbNA
Sequence (1-letter): Ac-KQKLR-MbNA
Storage: -20 °C or below

Ac-KQKLR-MbNA is a fluorogenic substrate for Cathepsin S. Cathepsin S is a lysosomal cysteine protease with important roles in MHC Class II antigen presentation and nociception. Cathepsin S also cleaves several extracellular matrix proteins (laminin, fibronectin elastin, osteocalcin) and glycosaminoglycans (heparin sulfate, chondroitin sulfate).

Activity is quantified by release of free fluorescent 4-Methoxy-β-naphthylamine (4MβNA) which excites at 335-350 nm and emits at 410-440 nm

We are in the process of migrating our technical data sheets (TDS) to this space. They can currently be found in the description section of the product pages. Thank you for your patience. For any technical questions, please contact us at





Enzyme Substrates

Shopping Cart
Scroll to Top