Structure of the alpha-fetoprotein gene in the mouse.

Abstract
The mouse .alpha.-fetoprotein mRNA is the product of a single-copy gene whose mRNA coding sequences are represented discontinuously in the genome. Several EcoRI genomic fragments which contain portions of the .alpha.-fetoprotein gene were cloned by using the EK2 vector .lambda.gt WES .cntdot. .lambda.B. In addition, a mouse genomic library was screened to obtain a 15.75-kilobase segment of DNA that includes more than 85% of the .alpha.-fetoprotein coding sequence. Analyses by restriction endonuclease mapping and EM showed that the mRNA sequence is interrupted by at least 11 intervening sequences which occupy 90% of the cloned DNA.