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. 1987 Oct 12;15(19):7725–7733. doi: 10.1093/nar/15.19.7725

A role for exon sequences in alternative splicing of the human fibronectin gene.

H J Mardon 1, G Sebastio 1, F E Baralle 1
PMCID: PMC306303  PMID: 3671064

Abstract

Exon EDIIIA of the fibronectin (Fn) gene is alternatively spliced via pathways which either skip or include the whole exon in the messenger RNA (mRNA). We have investigated the role of EDIIIA exon sequences in the human Fn gene in determining alternative splicing of this exon during transient expression of alpha globin/Fn minigene hybrids in HeLa cells. We demonstrate that a DNA sequence of 81bp within the central region of exon EDIIIA is required for alternative splicing during processing of the primary transcript to generate both EDIIIA+ and EDIIIA- mRNA's. Furthermore, alternative splicing of EDIIIA only occurs when this sequence is present in the correct orientation since when it is in antisense orientation splicing always occurs via exon-skipping generating EDIIIA- mRNA.

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Selected References

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