Presence of the Caenorhabditis elegans spliced leader on different mRNAs and in different genera of nematodes.
Open Access
- 1 October 1988
- journal article
- research article
- Published by Cold Spring Harbor Laboratory in Genes & Development
- Vol. 2 (10), 1277-1283
- https://doi.org/10.1101/gad.2.10.1277
Abstract
Several different mRNAs from Caenorhabditis elegans contain the same 22-nucleotide leader sequence at their 5' ends that is acquired in a trans-splicing reaction. About 10 to 15% of the major proteins are translated from mRNAs that contain the spliced leader, among them two ribosomal proteins, ubiquitin, GAPDH, a heat shock protein (hsp70a), and three actins. The same spliced leader sequence is present in mRNAs isolated from nematodes from several different genera; but it is not present in mRNAs from other organisms. The spliced leader is encoded as a spliced leader (SL) RNA about 100 nucleotides long. The gene for the SL RNA is located in the 5S rDNA repeat in C. elegans; however, this association with the 5S repeat is not preserved in other genera. The 22-nucleotide spliced leader sequence is conserved in three genera of nematodes.This publication has 20 references indexed in Scilit:
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