[Term] id: PR:000008425 name: histone H3.3 def: "A histone H3 that is a translation product of the human H3F3A or H3F3B genes, 1:1 orthologs thereof, a semi-ortholog thereof, or pro-orthologs thereof." [PRO:DNx] comment: Category=family. Note: The number of genes encoding histone H3.3 varies in different organisms. Humans, for example, have two, while zebrafish have five. synonym: "H3.3" EXACT PRO-short-label [PRO:DNx] synonym: "H3-3A" RELATED Gene-based [] synonym: "H3-3B" RELATED Gene-based [] synonym: "H3.3A" RELATED Gene-based [] synonym: "H3.3B" RELATED Gene-based [] synonym: "H3F3" RELATED Gene-based [] synonym: "H3F3A" RELATED Gene-based [] synonym: "H3F3B" RELATED Gene-based [PRO:DNx] synonym: "PP781" RELATED Gene-based [] is_a: PR:000027594 ! histone H3