Biomaterial Database

Kynurenine hydroxylase in Musca domestica L. 1979

E Akaboshi

Laboratory of Molecular Genetics, University of Osaka Medical School, Japan.

1. Kynurenine hydroxylase activity was assayed in extracts of Musca domestica L. 2. During the life cycle of the fly, there is a peak of enzyme activity shortly after pupation. 3. Eye-color mutants, rb2, rb1; rb2 and cm, show reduced activity during pupal stages. 4. An ocra mutant lacks this activity. 5. The rb1 and rb2 mutations were separated from the rb1; rb2 strain. From measurements of the xanthommatin content, the rb1 mutation was suggested to enhance the expression of the rb2 gene.

UI	MeSH Term	Description	Entries
D007814	Larva	Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.	Maggots,Tadpoles,Larvae,Maggot,Tadpole
D008297	Male		Males
D009154	Mutation	Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.	Mutations
D010078	Oxazines	Six-membered heterocycles containing an oxygen and a nitrogen.
D010641	Phenotype	The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.	Phenotypes
D010860	Pigments, Biological	Any normal or abnormal coloring matter in PLANTS; ANIMALS or micro-organisms.	Biological Pigments
D011679	Pupa	An inactive stage between the larval and adult stages in the life cycle of INSECTA.	Chrysalis,Pupae
D005127	Eye Color	Color of the iris.	Color, Eye,Colors, Eye,Eye Colors
D005260	Female		Females
D005838	Genotype	The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS.	Genogroup,Genogroups,Genotypes