The targeting construct introduced upstream of exon 21 a lox P site, modified exon 21 containing an inserted G bp and a neomycin resistance and STOP cassette with a 3' loxP site. The resulting frameshift causes a premature STOP codon and loss of major higher molecular weight isoforms at the synapse. This insertion is present in patients with autism. Cre-mediated recombination is required to remove the modified exon and selection/STOP cassette. (J:224381)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count