Reference Report

Reference
Citation	Petrella, L.N., Smith-Leiker, T., Cooley, L. (2007). The Ovhts polyprotein is cleaved to produce fusome and ring canal proteins required for Drosophila oogenesis. Development 134(4): 703--712. (Export to RIS)
FlyBase ID	FBrf0194854
Publication Type	Research paper
PubMed ID	17215303
PubMed Abstract	An essential component of normal development is controlling the transition from cell proliferation to differentiation. One such transition occurs during Drosophila oogenesis. In early oogenesis, germ cells undergo mitotic proliferation and contain a specialized organelle called a fusome, whereas later post-mitotic cells differentiate and lose the fusome as F-actin-rich ring canals form. The hts gene encodes the only Drosophila Adducin, and is a female-sterile mutant that affects both the fusome and ring canals. We show that one Hts protein, Ovhts, is a polyprotein that is cleaved to produce two products, Ovhts-Fus and Ovhts-RC. Whereas Ovhts-Fus localizes to the fusome in mitotic cells, Ovhts-RC localizes to ring canals throughout later oogenesis. We demonstrate that an uncleavable version of Ovhts delays the transition from fusome-containing cells to those that have ring canals. Ovhts is the first polyprotein shown to produce proteins that function in separate structures.
DOI	10.1242/dev.02766
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Language of Publication	English
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Publication Type	Journal
Abbreviation	Development
Title	Development
Publication Year	1987-
ISBN/ISSN	0950-1991
Data from Reference
Alleles (20)
	hts^Ovhts.MtnA hts^{Ovhts.otu.T:Avic\GFP-ECFP.Cer} hts^{Ovhts.otu.T:Avic\GFP-S65T} hts^{Ovhts.Scer\UAS.P\T.T:Avic\GFP-S65T} hts^{ShAdd.otu.T:Avic\GFP-YFP.Venus,T:Zzzz\His6} hts^W532X hts^{Δ1.Ovhts.MtnA} hts^{Δ2.Ovhts.MtnA} hts^{Δ3.Ovhts.MtnA} hts^{Δ3.Ovhts.otu.T:Avic\GFP-S65T} hts^{Δ4.Ovhts.MtnA} hts^ΔG Scer\GAL4^{bam.T:Hsim\VP16} Scer\GAL4^nos.PG Scer\GAL4^{nos.UTR.T:Hsim\VP16} Scer\GAL4^{otu.T:Hsim\VP16} Scer\GAL4^αTub84B.PL T:Avic\GFP^ECFP.Cer T:Avic\GFP^S65T T:Avic\GFP^YFP.Venus
Constructs (10)
	P{bam-GAL4:VP16} P{COH-Cer-Ovhts} P{COH-Ovhts-GFP.Δ3} P{COH-Ovhts-GFP} P{COH-ShAdd-Ven} P{GAL4::VP16-nos.UTR} P{GAL4-nos.NGT} P{otu-GAL4::VP16.R} P{tubP-GAL4} P{UASH-Ovhts-GFP}
Genes (4)
	hts Scer\GAL4 T:Zzzz\His6 α-Spec
Natural transposons (1)
	P-element