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Published on: March 28, 2017
Conservation of CYP307 function between low-identity homologs
Caitlyn L Perry1, Charles Robin1
1School of BioSciences, The University of Melbourne.
The CYP307 enzymes are crucial for insect molting hormones. Functional conservation was shown between distantly related insect CYP307 genes, explaining their evolutionary variation.
Area of Science:
- Biochemistry
- Evolutionary Biology
- Genetics
Background:
- CYP307 enzymes synthesize arthropod ecdysteroid hormones.
- These enzymes exhibit high rates of gene duplication and loss.
Purpose of the Study:
- To investigate functional conservation among CYP307 family members.
- To understand evolutionary forces driving CYP307 copy number variation.
Main Methods:
- Rescue experiments using transgenic expression in Drosophila melanogaster.
- Comparative analysis of CYP307 gene sequences.
Main Results:
- Drosophila melanogaster Cyp307a1 null mutants were rescued by Drosophila hydei Cyp307a3 and Aedes aegypti Cyp307b transgenes.
- Low amino acid identity (<35%) was observed between D. melanogaster CYP307A1 and A. aegypti CYP307B, yet function was conserved.
Conclusions:
- Functional conservation exists across distantly related CYP307 enzymes.
- This supports understanding the evolutionary dynamics of CYP307 gene families.
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