The insertion of a PGK-neo cassette disrupted exon 1, which is specific to isoforms transcribed in non-erythroid cells. RT-PCR analysis showed a lack of transcript containing exon 1, though the expression of a transcript consisting of exon 3 and downstream sequence was identified. The expression of this aberrant transcript was reported to be driven by the PGK promoter and was putatively responsible for the hepatic enzymatic activity determined in homozygous mutant mice (reduced by 44.7% from wild-type). (J:31572)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count