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General Information
D. melanogaster
Deficiency (2L) purple
FlyBase ID
Feature type
Computed Breakpoints include
Sequence coordinates
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Class of aberration (relative to wild type)
Class of aberration (relative to progenitor)


Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 << pr << bk2

Genetic mapping information
Comments on Cytology

Left limit of break 1 from polytene analysis (FBrf0050576) Right limit of break 1 from inclusion of pr (citation unavailable) Limits of break 2 from polytene analysis (FBrf0050576)

Sequence Crossreferences
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Phenotypic Data
In combination with other aberrations

Embryos derived from lok null mothers (Df(2L)pr2b/Df(2L)be408 females carrying P{CG10728+tMa} to rescue vls function and P{barr+tMa} to rescue barr function) have an average of 24.5 pole cells/embryo compared to the wild-type number of 37.3 pole cells/embryo. The progeny of the lok null flies are viable and fertile, they show no increase in the rate of X chromosome nondisjunction compared to controls and females show no defects in meiotic recombination frequency. lok null larvae are not more sensitive to methyl methanesulfonate or hydroxyurea than control larvae. Irradiation does not result in a delay of entry into mitosis in lok null embryos, in contrast to wild-type embryos.

Viable and fertile in combination with Df(2L)TW50. Viable and fertile in combination with Df(2L)Sd37. Semilethal and female sterile in combination with Df(2L)DS5. Semilethal and female sterile in combination with Df(2L)DS9.

Dominant suppressor of In(1)wm4h position-effect variegation.

NOT in combination with other aberrations
Stocks (0)
Notes on Origin
Balancer / Genotype Variants of the Aberration
Separable Components
Other Comments
Synonyms and Secondary IDs (3)
Reported As
Symbol Synonym
Name Synonyms
Deficiency (2L) purple
Secondary FlyBase IDs
    References (10)