A loxP site was inserted upstream of exon 4, and an FRT-flanked neomycin selection cassette and a second loxP site were inserted downstream of exon 4. Flp-mediated recombination removed the selection cassette leaving exon 4 floxed. (J:295274)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count