PMID: 9533953May 12, 1998Paper

bagpipe-Dependent expression of vimar, a novel Armadillo-repeats gene, in Drosophila visceral mesoderm

Mechanisms of Development
P C Lo, Manfred Frasch

Abstract

Two homeobox-containing genes, tinman and bagpipe, play important roles during the specification of the midgut visceral musculature from the mesoderm during Drosophila embryogenesis. Expression of tinman in the dorsal mesoderm activates the expression of the bagpipe gene in segmental subsets of those cells, which then become determined to form the midgut visceral mesoderm. Understanding how the bagpipe gene affects this specification requires the isolation and characterization of its downstream target genes. Using an enhancer trap line that expresses its marker in the midgut visceral mesoderm, we have cloned and characterized a novel gene (vimar) that is expressed embryonically in the mid and hindgut visceral mesoderm, as well as in the CNS and PNS. The expression of this gene in the midgut visceral mesoderm initiates shortly after bagpipe expression and depends on bagpipe function. Maternal and zygotic transcripts are produced from this gene by alternative polyadenylation, and encode the same 634-amino acid protein. The vimar protein contains 15 tandem copies of the Armadillo repeat, a protein interaction domain, and is similar to mammalian Smg guanine dissociation stimulator protein, which stimulates the activity of a number ...Continue Reading

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Citations

Nov 29, 2007·The Journal of Biological Chemistry·Brandon J CuthbertsonPerry J Blackshear
Jan 6, 2006·BMC Bioinformatics·Micah HamadyRavinder Singh
Oct 31, 2012·BMC Cell Biology·April K MarroneHalyna R Shcherbata
Sep 29, 2011·BMC Neuroscience·April K MarroneHalyna R Shcherbata
Mar 29, 2001·Genome Biology·K L PoseyS H Hardin
Oct 8, 2016·PLoS Genetics·Lianggong DingLei Liu
Mar 24, 2009·Gastroenterology·Valérie A McLinMilan Jamrich

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