courtless, the Drosophila UBC7 homolog, is involved in male courtship behavior and spermatogenesis.
Genetics
; 155(3): 1267-80, 2000 Jul.
Article
em En
| MEDLINE
| ID: mdl-10880487
ABSTRACT
The courtless (col) mutation disrupts early steps of courtship behavior in Drosophila males, as well as the development of their sperm. Most of the homozygous col/col males (78%) do not court at all. Only 5% perform the entire ritual and copulate, yet these matings produce no progeny. The col gene maps to polytene chromosome band 47D. It encodes two proteins that differ in their carboxy termini and are the Drosophila homologs of the yeast ubiquitin-conjugating enzyme UBC7. The col mutation is caused by an insertion of a P element into the 3' UTR of the gene, which probably disrupts translational regulatory elements. As a consequence, the homozygous mutants exhibit a six- to sevenfold increase in the level of the COL protein. The col product is essential, and deletions that remove the col gene are lethal. During embryonic development col is expressed primarily in the CNS. Our results implicate the ubiquitin-mediated system in the development and function of the nervous system and in meiosis during spermatogenesis.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Peptídeo Sintases
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Espermatogênese
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Proteínas de Insetos
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Corte
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Proteínas de Drosophila
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Enzimas de Conjugação de Ubiquitina
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Drosophila
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Ligases
Limite:
Animals
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article