FB2024_03 , released June 25, 2024
Allele: Dmel\Mhc+t41.9
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General Information
Symbol
Dmel\Mhc+t41.9
Species
D. melanogaster
Name
FlyBase ID
FBal0061726
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
IFI, pWMHC
Key Links
Nature of the Allele
Progenitor genotype
Carried in construct
Cytology
Description

41.9kb fragment including the Mhc gene and about 9kb of 5' and 3' flanking sequences.

Allele components
Component
Use(s)
Regulatory region(s)
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 ( 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

Flies expressing Mhc+t41.9 display a normal sarcomeric structure.

Overexpression of Mhc in wild type flies (three copies) does not affect muscle function but may have slight effects upon myofibril organisation. Four copies has a severe effect on flight and jump ability reflecting mutant myofibrils in the indirect flight muscles (IFMs) and tergal depressor muscle of the trochanter (TDT). Only occasionally flies carrying five copies are observed and flies carrying six copies are never recovered. This indicates overexpression of Mhc can affect muscles in addition to the IFMs and TDT.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Partially rescues

Mhc+t41.9 partially rescues MhcE1570K/Ifm(2)RU1[+]

Comments

Expression of Mhc+t41.9 rescues the dorsal longitudinal muscle defects seen in MhcL1736P mutant flies. The flightlessness is not rescued.

Expression of two copies of Mhc+t41.9 rescues the dorsal longitudinal muscle thinning seen in homozygous MhcE1570K mutants, with flies instead showing a similar hypercontraction phenotype to that seen in MhcE1570K heterozygotes. Expression of Mhc+t41.9 partially suppresses the sarcomere disruption seen in MhcE1570K mutants.

Expression of Mhc+t41.9 partially rescues the hypercontraction phenotype seen in MhcE1570K/+ mutants, with flies displaying less fibre tearing.

Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Symbol Synonym
Mhc+t41.9
Mhc+t50
Name Synonyms
Secondary FlyBase IDs
    References (8)