LSR1 Summary Help

Standard Name LSR1 1
Alias snR20 2
Feature Type snRNA
Description U2 spliceosomal RNA (U2 snRNA), component of the spliceosome; pairs with the branchpoint sequence; functionally equivalent to mammalian U2 snRNA; stress-induced pseudouridylations at positions 56 and 93 may contribute to regulation of splicing (1, 3, 4, 5)
Name Description Large Spliceosomal RNA 1
Gene Product Alias U2 , U2 snRNA
Chromosomal Location
ChrII:681862 to 680688 | ORF Map | GBrowse
Note: this feature is encoded on the Crick strand.
Gene Ontology Annotations All LSR1 GO evidence and references
Molecular Function
Manually curated
Biological Process
Manually curated
Cellular Component
Manually curated
Regulators 2 genes
8 total interaction(s) for 8 unique genes/features.
Physical Interactions
  • Affinity Capture-RNA: 7
  • Protein-RNA: 1

sequence information
ChrII:681862 to 680688 | ORF Map | GBrowse
Note: this feature is encoded on the Crick strand.
Last Update Coordinates: 2011-02-03 | Sequence: 2006-10-04
Subfeature details
Most Recent Updates
Coordinates Sequence
Noncoding exon 1..1175 681862..680688 2011-02-03 2006-10-04
Retrieve sequences
Analyze Sequence
S288C only
S288C vs. other species
External Links All Associated Seq | Search all NCBI (Entrez)
Primary SGDIDS000006478
References cited on this page View Complete Literature Guide for LSR1
1) Ares M Jr  (1986) U2 RNA from yeast is unexpectedly large and contains homology to vertebrate U4, U5, and U6 small nuclear RNAs. Cell 47(1):49-59
2) Riedel N, et al.  (1986) Small nuclear RNAs from Saccharomyces cerevisiae: unexpected diversity in abundance, size, and molecular complexity. Proc Natl Acad Sci U S A 83(21):8097-101
3) Guthrie C and Patterson B  (1988) Spliceosomal snRNAs. Annu Rev Genet 22:387-419
4) Pascolo E and Seraphin B  (1997) The branchpoint residue is recognized during commitment complex formation before being bulged out of the U2 snRNA-pre-mRNA duplex. Mol Cell Biol 17(7):3469-76
5) Wu G, et al.  (2011) U2 snRNA is inducibly pseudouridylated at novel sites by Pus7p and snR81 RNP. EMBO J 30(1):79-89