Abstract
Latent transforming growth factor β binding protein-1 (LTBP1) is important in regulating the localisation and activation of transforming growth factor β (TGFβ). Three forms of LTBP1 mRNA have previously been described, LTBP1L, LTBP1S and LTBPΔ53. Here, we have analysed the LTBP1 coding sequence and identified two other spliced forms, LTBP1Δ55 and LTBP1Δ41. LTBP1Δ55 is a short form of LTBP1L which lacks 55 amino acids including two consensus N-glycosylation sites and LTBP1Δ41 is a form of LTBP1 which lacks the 12th EGF-like repeat. Furthermore, sequencing of genomic clones showed that splicing to generate LTBP1L occurs using an intra-exonic 3' splice acceptor site in the first coding exon of LTBP1S and that LTBP1Δ55 arises from the alternative use of an exonic 3' splice acceptor site at the end of the following intron. LTBP1Δ41 arises from skipping the exon which encodes the 12th EGF-like repeat. LTBP1Δ55 and LTBP1Δ41 mRNA are expressed in a wide variety of human tissues but the proportions of each splice form vary in the tissues. Copyright (C) 1998 Federation of European Biochemical Societies.
Original language | English (US) |
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Pages (from-to) | 143-148 |
Number of pages | 6 |
Journal | FEBS Letters |
Volume | 435 |
Issue number | 2-3 |
DOIs | |
State | Published - Sep 18 1998 |
Keywords
- Alternative splicing
- EGF-like repeat
- Latent transforming growth factor β binding protein
ASJC Scopus subject areas
- Biophysics
- Structural Biology
- Biochemistry
- Molecular Biology
- Genetics
- Cell Biology