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cDNA cloning, genomic structure and chromosomal localization of a novel epidermis-type lipoxygenase.

Kinzig A., Heidt M., Fuerstenberger G., Marks F., Krieg P.

Genomics 58:158-164 58: 158-164 (1999)


Using a combination of degenerate PCR technique and conventional screening procedures, we isolated a cDNA encoding a novel lipoxygenase, termed epidermis-type lipoxygenase-3 (e-LOX-3, gene symbol Aloxe3), from mouse skin. Aloxe3 mRNA is expressed in the stratified epithelia of skin, tongue, and forestomach. The cDNA encodes a protein of 711 amino acids with a calculated molecular mass of 80.6 kDa. The amino acid sequence shows approximately 54% identity to the recently identified 12(R)-lipoxygenase. Sequence comparison revealed a segment of 41 amino acid residues localized near the boundary between the N- and the C-terminal domain sequences of the molecule, a structural feature that is also characteristic of 12(R)-lipoxygenase, suggesting that these two epidermis-derived lipoxygenases may be members of a novel structural class of mammalian lipoxygenases. The novel lipoxygenase gene is divided into 15 exons and 14 introns, spanning 22.3 kb of genomic DNA. By interspecific backcross analysis, the novel gene was localized to the central region of mouse chromosome 11. Copyright 1999 Academic Press.

LOX-DB entries related to this article: m-e-lox-3