FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\MCPH1Z0978
Open Close
General Information
Symbol
Dmel\MCPH1Z0978
Species
D. melanogaster
Name
FlyBase ID
FBal0220957
Feature type
allele
Associated gene
Dmel\MCPH1
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

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

    Amino acid replacement: N363I.

    (Rickmyre et al., 2007)
    Mutations Mapped to the Genome
    Curation Data
    Type
    Location
    Additional Notes
    References
    point_mutation
    2R:11,898,550..11,898,550 [-]
    Nucleotide change:

    A11898550T

    Amino acid change:

    N316I | MCPH1-PA; N363I | MCPH1-PB; N316I | MCPH1-PC; N363I | MCPH1-PD

    Reported amino acid change:

    N363I

    Comment:

    Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.

    (Rickmyre et al., 2007)
    Variant Molecular Consequences
    Associated Sequence Data
    DDBJ / EMBL / GenBank
    DNA sequence
    Protein sequence
     
    UniProtKB/Swiss-Prot
      UniProtKB/TrEMBL
        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 completely sterile; embryos derived from these females arrest in a metaphase-like state in cycles 1-8.

        Embryos derived from MCPH1Z1861/MCPH1Z0978 females arrest with condensed chromosomes and unevenly spaced nuclei. Asynchronously dividing nuclei and centrosome duplication prior to chromosome segregation are often seen. Tubulin foci are often missing from one or both poles of mitotic spindles, which are typically shorter or more barrel-shaped than normal. Chromosomes are poorly aligned and are occasionally displaced from the metaphase plate. Spindles with centrosomal detachment at one or both poles (43.6%) and spindles with more than one centrosome per pole or ectopic centrosomes within the spindle (46.0%) are seen.

        Chromatin bridging is seen in 68.3% of late anaphase-to-telophase figures in embryos derived from MCPH1Z1861/MCPH1Z0978 females. Spindle pole-to-pole distances are increased dramatically compared to wild-type figures.

        (Rickmyre et al., 2007)
        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 rescued by

        MCPH1Z4050/MCPH1Z0978 is partially rescued by Scer\GAL4VP16.nanos.UTR/MCPH1B.UASp

        (Rickmyre et al., 2007)
        Comments
        Images (0)
        Mutant
        Wild-type
        Stocks (1)
        Notes on Origin
        Discoverer
        External Crossreferences and Linkouts ( 0 )
        Synonyms and Secondary IDs (3)
        Reported As
        Symbol Synonym
        MCPH1Z0978
        ZII-0978
        (Rickmyre et al., 2007)
        awolZ0978
        (Rickmyre et al., 2007, Rickmyre et al., 2007)
        Name Synonyms
        Secondary FlyBase IDs
          References (2)