Squamous cell carcinoma antigen is a potent inhibitor of cysteine proteinase cathepsin L.


A squamous cell carcinoma antigen (SSCA), which is a member of the serpin family of proteinase inhibitors, was purified from sera of cancer patients. It did not inhibit serine proteinases. However, it non-competitively inhibited human cathepsin L with a Ki of 0.064 nM, but not cathepsins B and H among cysteine proteinases. These results indicated that SCCA… (More)


Figures and Tables

Sorry, we couldn't extract any figures or tables for this paper.

Slides referencing similar topics