[nuclear nonribosomal RNA larger than about 1000 nucleotides, the mass of which is rapidly synthesized and degraded within the cell nucleus; some heterogeneous nuclear RNA may be a precursor to mRNA, however, the great bulk of total hnRNA hybridizes with nuclear DNA rather than with mRNA. ( CSP )]
UMLS (CSP) C0035695 - Nucleic Acid, Nucleoside, or Nucleotide
- Biologically Active Substance
Relation/PAR: Ribonucleic acid
Relation/CHD: pre mRNA