A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\Cp1901

General Information
SymbolDmel\Cp1901SpeciesD. melanogaster
NameFlyBase IDFBal0191421
Feature typealleleAssociated geneDmel\Cp190
Allele classloss of function allele
Mutagenethyl methanesulfonate
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Description
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FB2013_03
FB2013_02
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Allele class
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Mutations Mapped to the Genome
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Associated Sequence Data
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Cytology
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Statement
Reference
Cp1901, Cp1901/Df(3R)P280-NR27 and Cp1901/Cp1902 mutants show some larval mortality, but approximately half the mutants survive until late pupal stages, dying as pharate adults. The eyes, wings and cuticle of Cp1901 pharate adults appear normal, showing that tissue organization is not affected by a major defect in mitosis. Additionally, there are no observable meiotic defects in Cp1901 larval testes.
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Statement
Reference
Cp190[+]/Cp1901 is a suppressor of visible phenotype of Fab-860.85.1
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Statement
Reference
A single copy of Cp190[1] is sufficient to impair Fab-8[60.85.1] enhancer blocking (as shown by increased eye pigmentation).
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Rescued by
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Comments
The Cp190ΔM.Ubi-p63E transgene rescues the lethality of Cp1901 mutants so that ~80% of flies survive to adulthood. However, these adults are unhealthy and only survive for a few days.
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Research paper
Bartkuhn et al., 2009, EMBO J. 28(7): 877--888
Active promoters and insulators are marked by the centrosomal protein 190. [FBrf0207850]
Mohan et al., 2007, EMBO J. 26(19): 4203--4214
The Drosophila insulator proteins CTCF and CP190 link enhancer blocking to body patterning. [FBrf0200449]
Chodagam et al., 2005, Curr. Biol. 15(14): 1308--1313
The centrosomal protein CP190 regulates myosin function during early Drosophila development. [FBrf0187303]
Butcher et al., 2004, J. Cell Sci. 117(7): 1191--1199
The Drosophila centrosome-associated protein CP190 is essential for viability but not for cell division. [FBrf0174805]