Coagulation factor XIII A chain, Coagulation factor XIII A1 polypeptide, Coagulation factor XIIIa, F13A, F13a1, Factor XIIIA, Fibrin stabilizing factor, A subunit, Fibrinoligase, FSF, A subunit, Protein-glutamine gamma-glutamyltransferase A chain, TGase, Transglutaminase A chain, Transglutaminase. plasma
It recognizes a protein of 83kDa, which is identified as Factor XIIIa. It has been identified in platelets, megakaryocytes, and fibroblast-like mesenchymal or histiocytic cells in the placenta, uterus, and prostate, monocytes and macrophages and dermal dendritic cells. Anti-factor XIIIa has been found to be useful in differentiating between dermatofibroma (almost all cases are positive), dermatofibrosarcoma protuberans (-/+) and desmoplastic malignant melanoma (-). Anti-factor XIIIa positivity is also seen in capillary hemagioblastoma, hemangioendothelioma, hemangiopericytoma, xanthogranuloma, xanthoma, hepatocellular carcinoma, glomus tumor, and meningioma.