5' splice site mutation in intron 9 of bark leading to a premature stop codon in region III and truncation of the protein (at 2394 aa) before the CLECT domain in the extracellular part.
Nucleotide substitution: G7491A.
G3799854A
G7491A
G to A mutation in the 5' splice junction of intron 9 leads to early translation termination.
Mutant embryos show excessively elongated tracheal tubes.