A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\aur14641

General Information
SymbolDmel\aur14641SpeciesD. melanogaster
NameFlyBase IDFBal0197864
Feature typealleleAssociated geneDmel\aur
Allele class
Mutagenethyl methanesulfonate
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Description
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FB2013_03
FB2013_02
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Allele class
Mutagen
Mutations Mapped to the Genome
Type
Location
Additional Notes
References
Associated Sequence Data
DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
UniProtKB/Swiss-Prot
UniProtKB/TrEMBL
Progenitor genotype
Nature of the lesion
Statement
Reference
Amino acid replacement: V302E.
Cytology
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neuroblast | supernumerary & larva
neuroblast | supernumerary & larval brain
spindle & neuroblast & larva
spindle & sensory mother cell & pupa
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Statement
Reference
Mutants show a massive increase in larval brain neuroblasts, developing more than 1000 central brain neuroblasts at stages where wild-type larvae have only 95-100 neuroblasts. The mutant neuroblasts are proliferative and can generate neuronal progeny. The orientation of the mitotic spindle is essentially randomised relative to the apical/basal cortical polarity axis in mutant metaphase neuroblasts, in contrast to wild-type metaphase neuroblasts where the mitotic spindle is aligned within 150 of the center of the apical/basal cortical polarity axis. Single cell mutant clones induced in a single neuroblast typically generate a clone containing multiple neuroblasts as well as a pool of smaller ganglion mother cell(GMC)/neuronal progeny, in contrast to single cell wild-type clones which give rise to one large neuroblast and a population of smaller GMC/neuronal progeny. Mutant pupal sensory organ precursor (SOP) cells show nearly random spindle orientation relative to the cortical polarity axis, in contrast to wild-type SOP cells. Mutant neuroblasts in explanted larval brains show both asymmetric and symmetric (17%) cell divisions, in contrast to wild-type controls which always divide asymmetrically.
Homozygous larvae have supernumerary neuroblasts.
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Statement
Reference
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Statement
Reference
aur14641 has neuroblast | supernumerary & larval brain phenotype, suppressible | partially by Scer\GAL4wor.PA/numbScer\UAS.cWa
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Statement
Reference
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Comments
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Discoverer
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hide Synonyms & Secondary IDs ( 4 )
Reported As
Symbol Synonym
aurA14641
l(3)LL14641
l(3)LL-14641
Name Synonym
Secondary FlyBase IDs
hide References ( 2 )
Research paper
Lee et al., 2006, Genes Dev. 20(24): 3464--3474
Drosophila Aurora-A kinase inhibits neuroblast self-renewal by regulating aPKC/Numb cortical polarity and spindle orientation. [FBrf0195248]
Wang et al., 2006, Genes Dev. 20(24): 3453--3463
Aurora-A acts as a tumor suppressor and regulates self-renewal of Drosophila neuroblasts. [FBrf0194325]