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The clot gene of Drosophila melanogaster encodes a conserved member of the thioredoxin-like protein superfamily

Authors :
A. Digilio
M. Furia
R. Rendina
E. Giordano
I. Peluso
Giordano, Ennio
Peluso, I
Rendina, R
Digilio, A.
Furia, Maria
Peluso, I.
Rendina, R.
Source :
Europe PubMed Central, Scopus-Elsevier
Publication Year :
2002

Abstract

The conversion of pyruvoyl-H4-pterin to pyrimidodiazepine (PDA), which is an essential step in the biosynthesis of the red components of Drosophila eye pigments known as drosopterins, requires the products of the genes sepia and clot. While the product of sepia has been shown to correspond to the enzyme PDA-synthase, the role of clot remains unknown, although the clot 1 allele was one of the first eye-color mutants to be isolated in Drosophila melanogaster, and much genetic and biochemical data has become available since. Here we report the cloning of the clot gene, describe its molecular organization and characterize the sequence alterations associated with the alleles cl 1 and cl 2 . The coding properties of the gene show that it encodes a protein related to the Glutaredoxin class of the Thioredoxin-like enzyme superfamily, conserved members of which are found in human, mouse and plants. We suggest that the Clot protein is an essential component of a glutathione redox system required for the final step in the biosynthetic pathway for drosopterins.

Details

ISSN :
16174615
Volume :
268
Issue :
5
Database :
OpenAIRE
Journal :
Molecular genetics and genomics : MGG
Accession number :
edsair.doi.dedup.....8e863bfd33f330535282bdf0e9638124