FB2024_03 , released June 25, 2024
Allele: Dmel\Sxlf5
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General Information
Symbol
Dmel\Sxlf5
Species
D. melanogaster
Name
FlyBase ID
FBal0016683
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
Sxlfs2
Key Links
Genomic Maps

Allele class
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

Mutation falls in the carboxy-terminal part of the protein, well downstream of the second Sxl RNA recognition motif, in a stretch of 7 proline residues interrupted by a single glutamine.

Amino acid replacement: P315L.

Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Nucleotide change:

C7084646T

Reported nucleotide change:

C?T

Amino acid change:

P276L | Sxl-PA; P284L | Sxl-PAB; P293L | Sxl-PAC; P306L | Sxl-PC; P316L | Sxl-PD; P276L | Sxl-PE; P308L | Sxl-PG; P308L | Sxl-PH; P308L | Sxl-PJ; P316L | Sxl-PL; P306L | Sxl-PN; P306L | Sxl-PO; P316L | Sxl-PP; P306L | Sxl-PR; P316L | Sxl-PT; P308L | Sxl-PW; P308L | Sxl-PX; P316L | Sxl-PY

Reported amino acid change:

P315L

Comment:

A change from CCA (P) to CTA (L) in the P directly preceding the Q in the span PPPPPQPP.

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 ( 0 )
Disease
Evidence
References
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 females are viable but sterile. 100% of ovaries of homozygous females that are not infected with Wolbachia have no eggs. This oogenesis defect is partly rescued by Wolbachia infection; 43% of the ovaries of infected homozygous females have no eggs, 25% of ovaries have 1-2 eggs, 25% of ovaries have 3-9 eggs and 7% of ovaries have more than 10 eggs. 70% of ovaries of Sxlf5/Sxlf1 females that are infected with Wolbachia have no eggs, 5% of ovaries have 1-2 eggs, 15% of ovaries have 3-9 eggs and 10% of ovaries have more than 10 eggs.

Sxlf4/Sxlf5; Su(Sxlfs)4646/+ females show severely reduced recombination and impaired segregation of homologous chromosomes. The reduction in recombination is caused by the lack of wild-type Sxl activity rather than the presence of Su(Sxlfs)4646.

XX tra1/tra4 pseudomales that are also homozygous for Sxlf5 show a decrease in the frequency of oogenic gonads and an increase in the frequency of non-oogenic gonads compared to XX tra1/tra4 pseudomales. Atrophic gonads are seen at the same frequency as XX tra1/tra4 pseudomales. Oogenic gonads are not seen in XX tra1/tra4 pseudomales carrying otuhs.PN that are also homozygous for Sxlf5. In each case the frequency of non-oogenic gonads is increased compared to XX tra1/tra4 pseudomales also homozygous for Sxlf5.

Tumorous ovaries.

Sxlf1/Sxlf5 female larvae have gonads that are female-like in size and morphology, although Sxlf1/Sxlf5 adult females have ovaries filled with male-like multicellular cysts.

Persistent cytoplasmic accumulation of Sxl protein in the germ line.

No eggs are laid, ovaries are rudimentary.

fully viable female-sterile

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Suppressed by
Statement
Reference

Sxlf1/Sxlf5 has female sterile phenotype, suppressible | partially by Oda[+]/Odak11803

Sxlf5 has female sterile phenotype, suppressible by Su(Sxlfs)4646

Sxlf5 has female sterile phenotype, suppressible by Su(Sxlfs)X2X2

Other
Phenotype Manifest In
Suppressed by
Statement
Reference

Sxlf1/Sxlf5 has ovary phenotype, suppressible | partially by Oda[+]/Odak11803

Additional Comments
Genetic Interactions
Statement
Reference

Odak11803/+ partially suppresses the ovary phenotype and female sterility of Sxlf5/Sxlf1.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
Comments
Comments

Small amount of male-specific Sxl splicing in ovaries. Sxl product distribution is abnormal: transition to nuclear staining is not made.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (7)
References (18)