[Term] id: PR:000040273 name: type 1B DNA topoisomerase 1 isoform 1 def: "A type 1B DNA topoisomerase 1 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:Q04750-1 or a 1:1 ortholog thereof." [PRO:DNx] comment: Category=sequence. synonym: "TOP1/iso:1" EXACT PRO-short-label [PRO:DNx] property_value: has_archetype PR:Q04750-1 is_a: PR:000016542 ! type 1B DNA topoisomerase 1