Characterization of Drosophila melanogaster cytochrome P450 genes.
Cytochrome P450s form a large and diverse family of heme-containing proteins capable of carrying out many different enzymatic reactions. In both mammals and plants, some P450s are known to carry out reactions essential for processes such as hormone synthesis, while other P450s are involved in the detoxification of environmental compounds. In general, functions of insect P450s are less well understood. We characterized Drosophila melanogaster P450 expression patterns in embryos and 2 stages of third instar larvae. We identified numerous P450s expressed in the fat body, Malpighian (renal) tubules, and in distinct regions of the midgut, consistent with hypothesized roles in detoxification processes, and other P450s expressed in organs such as the gonads, corpora allata, oenocytes, hindgut, and brain. Combining expression pattern data with an RNA interference lethality screen of individual P450s, we identify candidate P450s essential for developmental processes and distinguish them from P450s with potential functions in detoxification.
Chung
Henry
H
Centre for Environmental Stress and Adaptation Research, Department of Genetics, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria, 3010, Australia.
Sztal
Tamar
T
Pasricha
Shivani
S
Sridhar
Mohan
M
Batterham
Philip
P
Daborn
Phillip J
PJ
D000818:Animals; D003577:Cytochrome P-450 Enzyme System / Q000235:genetics*; D029721:Drosophila Proteins / Q000235:genetics; D004331:Drosophila melanogaster / Q000235:genetics*; D004625:Embryo, Nonmammalian / Q000737:chemistry; D018507:Gene Expression Regulation, Developmental; D017344:Genes, Insect; D007814:Larva / Q000737:chemistry; D014018:Tissue Distribution
D029721:Drosophila Proteins; D003577:Cytochrome P-450 Enzyme System