Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

The two classes of sequences for recognition and splicing of pre-mRNA in eukaryotes, GT-AG and AT-AC, are characterized by the nearly invariant dinucleotides present at the extreme 5' (donor) and 3' (acceptor) ends of the intron. Amongst GT-AG introns, which comprise the vast majority, the more extended consensus sequence at the 5' splice site isACAG/GTAGAGT (where / indicates the exon-intron boundary). This sequence is complementary to part of the U1 snRNA and is important in intron recognition. We have determined the genomic structure of the mouse fibroblast growth factor receptor 2 gene (Fgfr2) and identified a divergent 5' splice site (ACA/GAAAGT), conserved in FGFR1 , - 2 and - 3 from humans, mice and Xenopus that is used for alternative splicing of a hexanucleotide sequence, encoding Val-Thr, at the end of exon 10. This is the only example known of the use of /GA in vertebrate splicing. Similarities to a splice site in the Antennapedia gene of Drosophila suggest that this variant motif is involved in alternative splicing of short sequences at the 5' splice site. Inclusion or exclusion of the Val-Thr dipeptide may play an important role in controlling FGFR signalling through the Ras/MAPK pathway.

Original publication

DOI

10.1093/hmg/7.4.685

Type

Journal article

Journal

Hum Mol Genet

Publication Date

04/1998

Volume

7

Pages

685 - 691

Keywords

Alternative Splicing, Animals, Base Sequence, Conserved Sequence, Humans, Mice, Molecular Sequence Data, Protein-Tyrosine Kinases, Receptor Protein-Tyrosine Kinases, Receptor, Fibroblast Growth Factor, Type 1, Receptor, Fibroblast Growth Factor, Type 2, Receptor, Fibroblast Growth Factor, Type 3, Receptors, Fibroblast Growth Factor