SRD5A1, Official Symbol SRD5A1provided by HGNC Official Full Name steroid 5 alpha-reductase 1provided by HGNC Primary source HGNC:HGNC:11284 See related Ensembl:ENSG00000145545 MIM:184753; AllianceGenome:HGNC:11284 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 S5AR 1 Summary Steroid 5-alpha-reductase (EC 1.3.99.5) catalyzes the conversion of testosterone into the more potent androgen, dihydrotestosterone (DHT). Also see SRD5A2 (MIM 607306).[supplied by OMIM, Mar 2008] Expression Broad expression in esophagus (RPKM 13.2), skin (RPKM 10.7) and 24 other tissues See more Orthologs mouse all