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A DNA fragment encompassing the first exon and about 750 bp of the 5'-flanking sequence has been isolated and sequenced. The gene has multiple start sites of transcription which are dispersed over about 200 bp. The promoter lacks TATA and CAAT boxes and is very G + C-rich, with putative binding sites for the transcriptional factors Sp1 and AP2. Similar features are shared with two other brain-specific genes encoding thy-1 antigen and gamma-enolase. The existence of a conserved block of similarity upstream of the human and rat aldolase C genes suggests that this region could be involved in tissue-specific expression whose mechanism seem to be, at least in part, transcriptional.

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http://dx.doi.org/10.1111/j.1432-1033.1989.tb14690.xDOI Listing

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