[Term] id: PR:000042254 name: nicotinate-nucleotide pyrophosphorylase [carboxylating] isoform 1 def: "A nicotinate-nucleotide pyrophosphorylase [carboxylating] 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:Q91X91-1 or a 1:1 ortholog thereof." [PRO:DNx] comment: Category=sequence. synonym: "QPRT/iso:1" EXACT PRO-short-label [PRO:DNx] property_value: has_archetype PR:Q91X91-1 is_a: PR:000013567 ! nicotinate-nucleotide pyrophosphorylase [carboxylating]