A loxP site was inserted upstream of exon 4 and an FRT-flanked neo cassette with a 5' loxP site was inserted downstream of exon 4. (J:167331)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count