[Term] id: PR:000027721 name: estrogen receptor isoform 1 def: "An estrogen receptor that is a translation product of some mRNA whose exon structure and start site selection renders it capable of giving rise to a protein with the amino acid sequence represented by UniProtKB:P03372-1 or a 1:1 ortholog thereof." [PRO:CNA, PMID:19940156] comment: Category=sequence. synonym: "ESR1/iso:1" EXACT PRO-short-label [PRO:DNx] property_value: has_archetype PR:P03372-1 is_a: PR:000007204 ! estrogen receptor