Map of exons from TBLR1α and TBLR1β transcripts on the human chromosome 3q23 genomic sequence. The sequences in the exon marked with asterisks were not included in the original description of TBLR1 and are not included in NM024665.2. The first sequence [GenBank: AK022268] (*) maps on chromosome 3 between the first 2 exons of TBLR1. The second sequence [**] is DC42 [AF267864] and maps immediately 3' to TBLR1. The actual 3'end of the gene has not been experimentally defined. mRNA numbering begins with the first nucleotide identified at the 5' end of the sequence and the genomic sequence is numbered from the corresponding base in the DNA. The sequence begins with bp 12127476 of [GenBank: NT_005962.15].