U5 (DF0001079)

This model represents a noncoding RNA gene. Some ncRNA genes have transformed into, or become assimilated into transposons. Others occur in sufficient copy number that ab initio repeat finders may classify them as repetitive elements. This entry is used to correctly identify the gene and its pseudogenes and prevent misannotation.

U5 snRNA (spliceosomal RNA) gene / pseudogene


U5 snRNA genes are multicopy, and have spawned >100 pseudogenes in human.

Synonyms: U5B1


  1. High evolutionary conservation of the secondary structure and of certain nucleotide sequences of U5 RNA.
    Branlant C, Krol A, Lazar E, Haendler B, Jacob M, Galego-Dias L, Pousada C;
    Nucleic Acids Res 1983;11:8359-8367 Pubmed


Accession Name Wikipedia
Type ncRNA Gene Article
Class snRNA Article
Superfamily U5 Article

Hit Statistics

The model is 116 positions long. The average length of non-redundant hits to the model is 92.8. This table shows the number of hits above score thresholds:

Species Gathering Trusted
non-redundant all hits non-redundant all hits
Mus musculus 52 87 20 30
Homo sapiens 123 221 63 106
Danio rerio 148 149 145 146

External Database Links

  • Repbase : U5B1 [Requires Repbase registration]