Substitution of GDDG for GKGG in the Imp KH4 RNA-binding domain. Induced on the P{PTT-un}G00080 chromosome; the inserted protein trap element is still present.
GACGAT
The substitution of 6 nucleotides (AAGGGT to GACGAT) results in the substitution of GDDG for GKGG in the Imp KH4 RNA-binding domain.