FB2025_01 , released February 20, 2025
Allele: Dmel\Mnn1e200
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General Information
Symbol
Dmel\Mnn1e200
Species
D. melanogaster
Name
FlyBase ID
FBal0197542
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Nature of the Allele
Allele class
Associated Insertion(s)
Caused by aberration
Cytology
Description

Imprecise excision of the P{lacW} element, resulting in a 9.5kb deletion that extends from the 3' end of milt to the middle of exon 4 of the Mnn1 gene. The deletion removes more than half of the Mnn1 coding region.

Allele components
Component
Use(s)
Inserted element
Encoded product / tool
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Variant Molecular Consequences
Associated Sequence Data
DNA sequence
Protein sequence
 
Expression Data
Reporter Expression
Additional Information
Statement
Reference
 
Marker for
Reflects expression of
Reporter construct used in assay
Human Disease Associations
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 1 )
Modifiers Based on Experimental Evidence ( 0 )
Disease
Interaction
References
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease-implicated variant(s)
 
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference

Homozygous Mnn1e200 mutants (Df(2L)Mnn1e200 mutants in which milt function is rescued by expression of the milt+22 transgene) show a greater sensitivity to ionizing radiation when exposed as second and third instar larvae compared to wild-type larvae. As first instar larvae, these Mnn1e200 mutants show increased sensitivity to the DNA cross-linking agents nitrogen mustard and cisplatinum at room temperature and 29oC, and increased sensitivity to diepoxybutane and mitomycin C at 29oC but not at room temperature. These mutants display similar sensitivity to wild-type larvae when exposed to methyl methanosulphonate, hydroxyurea and 2-Acetylaminofluorene.

Mnn1e200 mutant cells are able to arrest normally at the G2/M transition after irradiation and show indistinguishable levels of apoptosis to controls.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
NOT Enhancer of
Statement
Reference

Mnn1e200 is a non-enhancer of visible | chemical conditional phenotype of Fancd2RNAi.UAS, Scer\GAL4ey.PU

NOT Suppressor of
Statement
Reference

Mnn1e200 is a non-suppressor of visible | chemical conditional phenotype of Fancd2RNAi.UAS, Scer\GAL4ey.PU

Other
Statement
Reference

Mnn1e200, Scer\GAL4ey.PU, wtsx1/wts[+] has neoplasia | conditional phenotype

Mnn1e200, Scer\GAL4ey.PU, wtsx1/wts[+] has visible | chemical conditional phenotype

Phenotype Manifest In
NOT Enhancer of
Statement
Reference

Mnn1e200 is a non-enhancer of eye | chemical conditional phenotype of Fancd2RNAi.UAS, Scer\GAL4ey.PU

NOT Suppressor of
Statement
Reference

Mnn1e200 is a non-suppressor of eye | chemical conditional phenotype of Fancd2RNAi.UAS, Scer\GAL4ey.PU

Other
Statement
Reference

Mnn1e200, Scer\GAL4ey.PU, wtsx1/wts[+] has eye | chemical conditional phenotype

Additional Comments
Genetic Interactions
Statement
Reference

A Mnn1e200 mutant background enhances the rate of eye tumor formation in response to nitrogen mustard compared to wtsx1/+ mutant controls.

The presence of homozygous Mnn1e200 does not alter the rough eye phenotype seen in flies expressing Fancd2dsRNA.Scer\UAS under the control of Scer\GAL4ey.PU in response to the cross-linking agent cisplatinum.

Homozygous Mnn1e200 mutants (Df(2L)Mnn1e200 mutants in which milt function is rescued by expression of the milt+22 transgene) that have a wtsx1/+ background show a two-fold greater number of tumorigenic foci than wtsx1/+ single mutants. After treatment with ionizing radiation, the number of tumorigenic foci is two to three times higher in these mutants than in controls and is 7-fold higher after treatment with nitrogen mustard.

The viability of Mnn1e200 mutants (Df(2L)Mnn1e200 mutants in which milt function is rescued by expression of the milt+22 transgene) is not affected by a snw background.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (3)