Structure and expression of the human mitochondrial acetoacetyl-CoA thiolase-encoding gene

Gene. 1991 Dec 30;109(2):285-90. doi: 10.1016/0378-1119(91)90623-j.


To examine 3-ketothiolase deficiency at the gene level, we analyzed the structure of the human mitochondrial acetoacetyl-CoA thiolase (MAT; EC gene (MAT). From the genomic library of a normal subject in lambda EMBL3, we isolated seven overlapping clones covering the entire length of MAT and the structural organization was determined. The gene spans approx. 27 kb and contains twelve exons interrupted by eleven introns. The 5'-flanking region of the gene lacks a conventional TATA box, but is G + C-rich and contains two CAAT boxes. Included are a putative binding site for the transcription factor, Sp1, and sequences resembling the binding sites of several other transcription factors, all features characteristic of housekeeping genes. A CAT assay revealed that a 101-bp DNA fragment immediately upstream from the cap site has promoter activity, and suggested that a DNA fragment from bp -888 to -102 probably contains a negative regulatory element(s).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetyl-CoA C-Acetyltransferase / genetics*
  • Amino Acid Sequence
  • Base Sequence
  • Blotting, Southern
  • Chloramphenicol O-Acetyltransferase / genetics
  • Chloramphenicol O-Acetyltransferase / metabolism
  • Cloning, Molecular
  • Exons / genetics
  • Humans
  • Introns / genetics
  • Mitochondria / enzymology*
  • Molecular Sequence Data
  • Promoter Regions, Genetic / genetics
  • Recombinant Proteins / biosynthesis
  • Restriction Mapping


  • Recombinant Proteins
  • Chloramphenicol O-Acetyltransferase
  • Acetyl-CoA C-Acetyltransferase

Associated data

  • GENBANK/D90476
  • GENBANK/D90477
  • GENBANK/D90478
  • GENBANK/D90479
  • GENBANK/D90480
  • GENBANK/D90481
  • GENBANK/D90482
  • GENBANK/D90483
  • GENBANK/D90484
  • GENBANK/D90485
  • GENBANK/D90486
  • GENBANK/D90487