has part has part has_part polynucleotide CHEBI:8312 0 KEGG:C00419 Polynucleotide (C5H8O6PR)n.C10H17O10PR2 A nucleobase-containing molecular entity with a polymeric structure comprised of a linear sequence of 13 or more nucleotide residues. CHEBI:13672 polynucleotides chebi_ontology CHEBI:15986 CHEBI:14859 information biomacromolecule nucleotide residue nucleobase-containing molecular entity