FB2024_03 , released June 25, 2024
Allele: Dmel\Abd-BMcp-1
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General Information
Symbol
Dmel\Abd-BMcp-1
Species
D. melanogaster
Name
FlyBase ID
FBal0000145
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
Mcp1, Mcp, Abd-BMcp
Key Links
Mutagen
Nature of the Allele
Progenitor genotype
Cytology

Polytene chromosomes normal.

Description

The deletion uncovers the nuclease hypersensitive region of the Mcp, continuing distally towards the iab-5 region.

3.5kb deletion in the cis regulatory region, removing a silencer element MCP725.

Deletion of a 3.6kb DNA segment from the region in between iab-4 and iab-5 cis-regulatory domains (from map position +94 to +97.6kb in the bithorax complex).

Alteration at coordinate +94-97.6kb, proximal to the Abd-B transcript.

94-97.6 kb deleted.

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

Abd-BMcp-1 embryos exhibit in parasegment 9 a pattern of Abd-B expression that is normally seen in parasegment 10, both in the epidermis and in the ventral nerve cord.

 
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

adult cuticle & abdominal segment 3 | male

adult cuticle & abdominal segment 4 | male

Detailed Description
Statement
Reference

heterozygous mutant adults have a pigments abdominal segment 4, showing a transformation of the a4 to a5. This is seen in 100% of mutants, with constant and high expressivity.

Heterozygous males show a decrease in the total amount of both monoene and 7,11-diene cuticular hydrocarbons compared to wild-type males. Heterozygous females show a significant increase in the level of monoene cuticular hydrocarbons and a significant decrease in the level of 7,11-diene cuticular hydrocarbons compared to wild-type females.

In males homozygous for Abd-BMcp-1,Abd-BSab-1, male specific pigmentation is expanded into A3 and A4.

A4 is transformed to A5 identity and is a darkly pigmented.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Suppressor of
Statement
Reference
Phenotype Manifest In
Enhanced by
Statement
Reference

Abd-BMcp-1 has phenotype, enhanceable by Pcl1

Suppressed by
Statement
Reference
Suppressor of
Statement
Reference
Other
Additional Comments
Genetic Interactions
Statement
Reference

The penetrance of the wing defect phenotype caused by brkMcp is decreased to 7.7% if the animals are also homozygous for Abd-BMcp-1.

96% of Abd-BMcp-1, TrlR85 double heterozygotes have a partially de-pigmented abdominal segment 4.

The third abdominal segment is transformed towards segment five or six in males also carrying ph-d1 or ph-d2.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (5)
Notes on Origin
Discoverer

Crosby.

M. Crosby.

Comments
Comments

m- r+ mutant, with defect in spatial regulation of Abd-B function. No effect on penetrance of head defect phenotype when in trans with Abd-Biab9-tuh-3.

The phenotype of Abd-BMcp-1/Abd-BMcp-1 closely resembles that of Abd-BCst/+.

DNase hypersensitivity assays reveal the deletion contains one very prominent nuclease sensitive region as well as several minor hypersensitive sites. Mcp appears to be associated with an unusual chromatin structure.

External Crossreferences and Linkouts ( 1 )
Crossreferences
GenBank Nucleotide - A collection of sequences from several sources, including GenBank, RefSeq, TPA, and PDB.
Synonyms and Secondary IDs (5)
References (22)