FB2026_02 , released June 18, 2026
Physical Interaction report
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General Information
Interaction Type
physical association
Interacting Genes
dsx, Abd-B
FlyBase ID
FBig0000119919
Interaction Network
Interactions Browser links
dsx network
Abd-B network
Reported Interactions
FBrf0243282-1.PD.WB
Reference
Ghosh et al., 2019
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Abd-B 

AbdB

bait

GST tag

Abd-B 
Abd-B 
dsx 

Dsx

prey

His tag

dsx 
dsx 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Abd-B 
homeodomain
sufficient binding region
aa 162-228

coordinates relative to Abd-B-PA

Abd-B 
homeodomain
necessary binding region
aa 162-228

coordinates relative to Abd-B-PA

dsx 
common region
sufficient binding region
aa 41-397

coordinates relative to dsx-PA

dsx 
DNA-binding domain
necessary binding region
aa 1-101

coordinates relative to dsx-PA

Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; bait produced as a recombinant fusion protein in bacterial system; prey produced as a recombinant fusion protein in bacterial system.

(Ghosh et al., 2019)
FBrf0243360-2.BiFC.FM
Reference
Romero-Pozuelo et al., 2019
Description
physical association
Assay
Collection
Source/Stage
genital disc / femalelarval stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
dsx 

DsxF

bait

YFP tag, N-terminal fragment

Abd-B 

Abd-BR

prey

YFP tag, C-terminal fragment

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Source was female genital discs of transgenic fly line; bait produced from tagged transgenic construct; prey produced from tagged transgenic construct.

(Romero-Pozuelo et al., 2019)
FBrf0243360-7.BiFC.FM
Reference
Romero-Pozuelo et al., 2019
Description
physical association
Assay
Collection
Source/Stage
wing disc / larval stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
dsx 

DsxF

bait

YFP tag, N-terminal fragment

Abd-B 

Abd-BR

prey

YFP tag, C-terminal fragment

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Source was wing discs of transgenic fly line; bait produced from tagged transgenic construct; prey produced from tagged transgenic construct.

(Romero-Pozuelo et al., 2019)
External Crossreferences and Linkouts ( 0 )
References (2)