[Term] id: PR:000025659 name: beta-2-microglobulin isoform 1 def: "A beta-2-microglobulin 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:P61769-1 or a 1:1 ortholog thereof." [PRO:CNA] comment: Category=sequence. synonym: "B2M/iso:1" EXACT PRO-short-label [PRO:DNx] property_value: has_archetype PR:P61769-1 is_a: PR:000004580 ! beta-2-microglobulin