Deletion breakpoint junction.

(A), The physical map of the breakpoints of Hp^del. The exons of Hp and Hpr are indicated by black boxes. The gene deletion in the Hp^del allele is indicated by a double-headed horizontal arrow. (B), The alignment of the junction region (Hp^del) with a region containing the 5′ breakpoint determined in this study (5′ N) and a region containing the 3′ breakpoint (3′ N) (DDBJ/EMBL/GenBank accession number M69197). Identical sequence is indicated by *. A polypyrimidine tract and an A-T rich sequence are underlined.