Amino acid replacement: S680L.
Nucleotide substitution: C2039T.
C3794209T
C2039T
S680L | bark-PA; S680L | bark-PB; S680L | bark-PC
S680L
lethal - all die during embryonic stage
embryonic/larval tracheal section
Mutant embryos show excessively elongated tracheal tubes.