The Drosophila cubitus interruptus protein and its role in the wingless and hedgehog signal transduction pathways

Cynthia Kelsey Motzny, Robert Holmgren*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

246 Scopus citations

Abstract

The segment polarity gene cubitus interruptus (ci) is required to maintain expression of the wingless gene and to specify naked cuticle within each epidermal segment. Antibodies were generated against the ci protein and used to analyze its pattern of expression. By stage 11, post-transcriptional regulation of ci is observed. ci transcript levels are uniform across the anterior compartment, but protein levels are higher next to the compartment boundaries. The distribution of the ci protein is altered in fused, hedgehog and wingless mutants suggesting cell-cell signaling may regulate ci protein levels. The role of ci in cell-cell signaling and pattern formation was examined in double mutants of ci with patched and zeste-white3/shaggy.

Original languageEnglish (US)
Pages (from-to)137-150
Number of pages14
JournalMechanisms of Development
Volume52
Issue number1
DOIs
StatePublished - Jul 1995

Keywords

  • Cubitus interruptus
  • Segment polarity
  • Signal transduction

ASJC Scopus subject areas

  • Embryology
  • Developmental Biology

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