| Tissue Specificity | Expressed predominantly in liver. Also present in plasma. Isoform 2: Expressed in plasma (at protein level). Expressed in liver. |
| Post Translational Modifications | Phosphorylated by FAM20C in the extracellular medium. |
| Function | Thrombin inhibitor activated by the glycosaminoglycans, heparin or dermatan sulfate. In the presence of the latter, HC-II becomes the predominant thrombin inhibitor in place of antithrombin III (AT-III). Also inhibits chymotrypsin, but in a glycosaminoglycan-independent manner. Peptides at the N-terminal of HC-II have chemotactic activity for both monocytes and neutrophils. Isoform 2: Shows negligible inhibition, in vitro, of thrombin and tPA and no inhibition of factor Xa, in vitro. |
| Protein Name | Heparin Cofactor 2Heparin Cofactor IiHc-IiProtease Inhibitor Leuserpin-2Hls2Serpin D1 |
| Database Links | Reactome: R-HSA-140837Reactome: R-HSA-140875Reactome: R-HSA-381426Reactome: R-HSA-8957275 |
| Cellular Localisation | |
| Alternative Protein Names | Heparin Cofactor 2 proteinHeparin Cofactor Ii proteinHc-Ii proteinProtease Inhibitor Leuserpin-2 proteinHls2 proteinSerpin D1 proteinSERPIND1 proteinHCF2 protein |
Information sourced from Uniprot.org