Genomic fragment covering the entire fh locus ( X:9147070..9150371 , derived from clone CH322-14E18)
3.3 kb rescue fragment carries the entire fh gene ( X:9147070..9150371 ).
fh+t3.3 rescues fh1
fh+t3.3 rescues the lethality of fh1 mutants, and rescues the neurodegeneration and electrophysiology defect seen in fh1 mutant photoreceptor clones.