cDNA cloning of 15-lipoxygenase type 2 and 12-lipoxygenases of bovine corneal epithelium
| Autor: | M, Liminga, E, Oliw |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
DNA
Complementary Base Sequence Reverse Transcriptase Polymerase Chain Reaction Molecular Sequence Data Arachidonate 12-Lipoxygenase Blotting Northern Epithelium Cornea Leukocytes Animals Arachidonate 15-Lipoxygenase Humans Cattle Amino Acid Sequence RNA Messenger Cloning Molecular Sequence Alignment |
| Zdroj: | Biochimica et biophysica acta. 1437(2) |
| ISSN: | 0006-3002 |
| Popis: | Bovine corneal epithelium contains arachidonate 12- and 15-lipoxygenase activity, while human corneal epithelium contains only 15-lipoxygenase activity. Our purpose was to identify the corneal 12- and 15-lipoxygenase isozymes. We used cDNA cloning to isolate the amino acid coding nucleotide sequences of two bovine lipoxygenases. The translated sequence of one lipoxygenase was 82% identical with human 15-lipoxygenase type 2 and 75% identical with mouse 8-lipoxygenase, whereas the other translated nucleotide sequence was 87% identical with human 12-lipoxygenase of the platelet type. Expression of 15-lipoxygenase type 2 and platelet type 12-lipoxygenase mRNAs were detected by Northern analysis. In addition to these two lipoxygenases, 12-lipoxygenase of leukocyte (tracheal) type was detected by polymerase chain reaction (PCR), sequencing, and Northern analysis. Finally, PCR and sequencing suggested that human corneal epithelium contains 15-lipoxygenase types 1 and 2. |
| Databáze: | OpenAIRE |
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