Title : A Short Peptide Inhibitor as an Activity-Based Probe for Matriptase-2.

Pub. Date : 2018 May 21

PMID : 29883401






4 Functional Relationships(s)
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Protein Name
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1 For this purpose we present a short biotinylated peptide derivative with a chloromethyl ketone group, biotin-RQRR-CMK, as an activity-based probe for matriptase-2. Biotin transmembrane serine protease 6 Homo sapiens
2 Biotin-RQRR-CMK was kinetically characterized and exhibited a second-order rate constant of inactivation (kinac/Ki) of 10,800 M−1 s−1 towards the matriptase-2 activity in the supernatant of transfected human embryonic kidney (HEK) cells. Biotin transmembrane serine protease 6 Homo sapiens
3 Biotin-RQRR-CMK was able to label active matriptase-2, as visualized in western blot experiments. Biotin transmembrane serine protease 6 Homo sapiens
4 Pretreatment with aprotinin, an active-site directed inhibitor of serine proteases, protected matriptase-2 from the reaction with biotin-RQRR-CMK. Biotin transmembrane serine protease 6 Homo sapiens