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Matsubara, Y. et al.

Molecular cloning and nucleotide sequence of cDNAs encoding the precursors of rat long chain acyl-coenzyme A, short chain acyl-coenzyme A, and isovaleryl-coenzyme A dehydrogenases. Sequence homology of four enzymes of the acyl-CoA dehydrogenase family.

cDNAs encoding the entire coding regions of the precursors (p) of rat long chain acyl-CoA (LCAD), short chain acyl-CoA (SCAD) and isovaleryl-CoA dehydrogenase (IVD) have been cloned and sequenced. Three cDNAs for rat liver LCAD together cover a 1440-base pair region. These cDNAs encode the entire 430-amino acid sequence of pLCAD, including the 30-amino acid leader peptide and the 400-amino acid mature LCAD. A single 1773 base pair cDNA for rat SCAD covers the entire coding region (414 amino acids), including the 26-amino acid leader peptide and the 388-amino acid mature peptide. Four identified IVD cDNAs, when combined, encompass a 2104 base region, and encode 424 amino acids including a 30-amino acid leader peptide and the 394-amino acid mature peptide. The identities of all cDNA clones have been confirmed by matching the amino acid sequences predicted from the respective cDNAs to the amino-terminal and tryptic peptide sequences derived from the corresponding purified rat enzyme. Comparison of the sequences of four rat acyl-CoA dehydrogenases, including LCAD, MCAD, SCAD, and IVD, and two of their human counterparts (MCAD and SCAD) reveals a high degree of homology (57 invariant and 92 near invariant residues: 30.6-35.4% of identical residues in pairwise comparisons), suggesting that these enzymes belong to a gene family and have evolved from a common ancestral gene.[1]

References

Molecular cloning and nucleotide sequence of cDNAs encoding the precursors of rat long chain acyl-coenzyme A, short chain acyl-coenzyme A, and isovaleryl-coenzyme A dehydrogenases. Sequence homology of four enzymes of the acyl-CoA dehydrogenase family. Matsubara, Y., Indo, Y., Naito, E., Ozasa, H., Glassberg, R., Vockley, J., Ikeda, Y., Kraus, J., Tanaka, K. J. Biol. Chem. (1989) [Pubmed]

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