A promoterless neomycin selection cassette was inserted into exon 3, which is common to all isoforms. Hepatic enzymatic activity, the conversion of porphobilinogen to uroporphyrin, was reduced by approximately 50% in heterozygous mice. (J:31572)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count