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Intronless Genes

  1. Detlef Doenecke,
  2. Werner Albig

Published Online: 23 SEP 2005

DOI: 10.1038/npg.els.0005022



How to Cite

Doenecke, D. and Albig, W. 2005. Intronless Genes. eLS. .

Author Information

  1. Georg-August-Universität Göttingen, Göttingen, Germany

Publication History

  1. Published Online: 23 SEP 2005


Most eukaryotic protein-coding genes are composed of exon and intron sequences. Intron derived sequences within primary transcripts are eliminated by ribonucleic acid (RNA) splicing. A small number of protein-coding genes are intronless; their primary transcripts are processed at their 5′ and 3′ ends like other premessenger RNAs, but no splicing is needed. Examples of intronless genes are genes for histone and interferon.


  • introns;
  • intronless genes;
  • retroposons;
  • histones;
  • histone genes