The Drosophila gene asteroid encodes a novel protein and displays dosage-sensitive interactions with Star and Egfr

The asteroid gene of Drosophila was found to lie within 189 bp of Star. Asteroid cDNA clones were isolated and sequenced and a single putative open reading frame was identified that encodes a novel protein of 815 amino acids with a calculated molecular mass of 93 kilodaltons. Using cDNA probes, aste...

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Veröffentlicht in:Genome 1998-04, Vol.41 (2), p.295-302
Hauptverfasser: Kotarski, Michael A, Leonard, Deborah A, Bennett, Sean A, Bishop, Clifton P, Wahn, Stephen D, Sedore, Stacey A, Shrader, Marissa
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container_end_page 302
container_issue 2
container_start_page 295
container_title Genome
container_volume 41
creator Kotarski, Michael A
Leonard, Deborah A
Bennett, Sean A
Bishop, Clifton P
Wahn, Stephen D
Sedore, Stacey A
Shrader, Marissa
description The asteroid gene of Drosophila was found to lie within 189 bp of Star. Asteroid cDNA clones were isolated and sequenced and a single putative open reading frame was identified that encodes a novel protein of 815 amino acids with a calculated molecular mass of 93 kilodaltons. Using cDNA probes, asteroid transcripts were localized to the proliferative tissues of embryos and to the mitotically active tissue anterior to the morphogenetic furrow in eye imaginal discs. Ribonuclease protection assays identified a mutation of asteroid that acts as a dominant enhancer of Star mutations and also enhances the Ellipse mutation, Egfr E1 . Based on these data, a model for asteroid gene function in EGF receptor signaling is presented.Key words: Drosophila, asteroid, Star, EGF receptor, eye development.
doi_str_mv 10.1139/g98-021
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subjects Amino Acid Sequence
Amino acids
Animals
Asteroids
Cell differentiation
Central nervous system
DNA-Binding Proteins - chemistry
DNA-Binding Proteins - genetics
Drosophila - genetics
Drosophila Proteins
Embryonic growth stage
Embryos
Eyes & eyesight
Flies
Furrows
Gene Dosage
Genes, erbB-1
Genetics
Molecular Sequence Data
Mutagenesis
Mutation
Open Reading Frames
Phosphoproteins - genetics
Proteins
Restriction Mapping
Signal Transduction - genetics
title The Drosophila gene asteroid encodes a novel protein and displays dosage-sensitive interactions with Star and Egfr
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