Serpin B3

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Serpin B3 (390 aa, ~45 kDa) is encoded by the human SERPINB3 gene. This protein is involved in the inhibition of serine- and cysteine-type proteinases.

**Synonyms:** - Protein T4-A - SCCA-1 - SERPINB3 - Squamous Cell Carcinoma Antigen 1