Serpin A3N is a serine protease inhibitor that is structurally related to alpha 1-antichymotrypsin encoded by the SERPINA3 gene (1). Serpin A3N is highly expressed in brain, testis, lung, thymus, and spleen (2). Serpin A3N secreted by Sertoli cells may regulate the activity of locally produced Granzyme B (3). Granzyme B inhibition by Serpin A3N may therefore regulate Granzyme B-mediated killing by cytotoxic lymphocytes, providing a means to disable cell-mediated immune responses.
| Uniprot | Mouse |
| Product By Gene ID | 5265 |
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