SERPINA4, Official Symbol SERPINA4provided by HGNC Official Full Name serpin family A member 4provided by HGNC Primary source HGNC:HGNC:8948 See related Ensembl:ENSG00000100665 MIM:147935; AllianceGenome:HGNC:8948 Gene type protein coding RefSeq status VALIDATED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as KAL; KST; PI4; KLST; PI-4; kallistatin Summary Predicted to enable serine-type endopeptidase inhibitor activity. Predicted to be involved in negative regulation of endopeptidase activity. Located in extracellular exosome. Biomarker of diabetic retinopathy. [provided by Alliance of Genome Resources, Apr 2022] Expression Biased expression in liver (RPKM 98.1), gall bladder (RPKM 28.7) and 2 other tissues See more Orthologs all