Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Neuron. 1994 Nov;13(5):1167-76.

Cloning of a structural and functional homolog of the circadian clock gene period from the giant silkmoth Antheraea pernyi.

Author information

  • 1Laboratory of Developmental Chronobiology, Children's Service, Massachusetts General Hospital, Boston.

Abstract

The period (per) gene of Drosophila plays an important role in circadian clock function. Interestingly, homologs of per have not been cloned outside of dipteran species. Using a PCR strategy, we now report the cloning of the cDNA of a per homolog from the silkmoth Antheraea pernyi. The cDNA encodes a protein of 849 amino acids, which shows highest identity (39%) with the per protein of Drosophila virilis. Stretches of high identity between moth and fly proteins are in the amino terminus, the PAS region, and the region surrounding the site of the per mutation in Drosophila. Moth per homolog mRNA levels exhibit a prominent circadian variation in adult heads, and per protein antibodies show a pronounced variation of per antigen staining in photoreceptor nuclei. With sequence information derived from moth and flies, per-like cDNA fragments were readily cloned by PCR from other moth species and a third insect order.

PMID:
7946353
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk