Serpin B3 Protein, Human, Recombinant (HEK293, His)T4-A, Squamous cell carcinoma antigen 1, serpin peptidase inhibitor, clade B (ovalbumin), member 3, Serpin B3, serine (or cysteine) proteinase inhibitor, clade B (ovalbumin), member 3, SCCA-1, SCCA1, Protein T4-A