Z-Ala-Arg-Arg-MbNA (Cathepsin B Substrate II)

Product Number: 866-29


Molecular Weight: 690.36
Salt Form: HCl
Purity: >96%
Sequence (3-letter): Z-Ala-Arg-Arg-4MbNA
Sequence (1-letter): Z-ARR-4MbNA
Storage: -20 °C or below

Z-Ala-Arg-Arg-4MbNA is a fluorogenic substrate for Cathepsin B. Cathepsin B is a lysosomal cysteine protease with a role in intracellular protein degradation. Cathepsin B crosses the blood-brain barrier and elevated levels are implicated in many neurological maladies including traumatic brain injury, epilepsy, and Alzheimer’s disease.

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




Enzyme Substrates

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Ambient Temperature


-20 °C or below

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