Alternative splicing of two leading exons partitions promoter activity between the coding regions of the maize homeobox gene Zmhox1a and Trap (transposon-associated protein).

Abstract excerpt

Elucidation of the exon/intron structure of the maize Zmhox1a homeobox gene revealed two small introns in the homeodomain. Both intron positions are conserved in animal counterparts encoded in the metazoan homeobox gene clusters and thus may indicate a common ancestor. The transcription start of the Zmhox1a gene has been localized far from the protein-coding region. Two distal untranslated leading exons are...

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