FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\CycB3L6540
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General Information
Symbol
Dmel\CycB3L6540
Species
D. melanogaster
Name
FlyBase ID
FBal0087021
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
l(3)L6540, CycB31
Key Links
Genomic Maps

Allele class
Nature of the Allele
Allele class
Progenitor genotype
Associated Insertion(s)
Cytology
Description

P{lacW} inserted in 5'UTR of CycB3.

Allele components
Component
Use(s)
Inserted element
Encoded product / tool
Mutations Mapped to the Genome
Curation Data
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

Homozygotes are viable but developmentally delayed. Eclosion is delayed by 2 days.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Enhancer of
Statement
Reference

CycB3L6540/CycB3[+] is an enhancer of visible | heat sensitive phenotype of HC2.hs

Suppressor of
Statement
Reference

CycB[+], CycB3L6540, CycB2, CycB3[+] is a suppressor | partially of visible phenotype of Scer\GAL4GMR.PF, pblΔDH497-549.UAS

NOT Suppressor of
Statement
Reference

CycB3L6540/CycB3[+] is a non-suppressor of increased cell death phenotype of shtd1

Other
Phenotype Manifest In
Enhancer of
Statement
Reference

CycB3L6540/CycB3[+] is an enhancer of wing vein | ectopic | heat sensitive phenotype of HC2.hs

CycB3L6540/CycB3[+] is an enhancer of wing | heat sensitive phenotype of HC2.hs

Suppressor of
Statement
Reference

CycB[+], CycB3L6540, CycB2, CycB3[+] is a suppressor | partially of eye phenotype of Scer\GAL4GMR.PF, pblΔDH497-549.UAS

NOT Suppressor of
Statement
Reference

CycB3L6540/CycB3[+] is a non-suppressor of eye phenotype of shtd1

CycB3L6540/CycB3[+] is a non-suppressor of ommatidium phenotype of shtd1

Other
Additional Comments
Genetic Interactions
Statement
Reference

CycB3L6540 CycAC8LR1 double mutants show delayed chromatin condensation during prophase during mitosis 15 and rare mitotic cells with aberrant multipolar spindles at stage 13. CycB3L6540, CycB- (CycB2 or Df(2R)599-5) double mutants have defective late mitotic figures during mitosis 15 and multipolar spindles at stage 13. CycB3L6540 CycB- (Df(2R)599-5) CycAC8LR1 triple mutants are blocked at mitosis 15. 50% of embryos complete syncytial cycles without obvious defects, although many embryos were highly abnormal. Endoreduplicating cells still undergo DNA synthesis, though mitotic cells of the CNS do not.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (2)
Notes on Origin
Discoverer
Comments
Comments

FlyBase curator comment: Gregory et al., 2007, Fly 1(1): 13--22 state that "cycB31" equates to 'FBal0119683' but this is incorrect. 'FBal0119683' corresponds to "CycB3unspecified", while "cycB31" is a synonym of "CycB3L6540".

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (7)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (10)