FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000116498
Interaction Network
Interactions Browser links
Sxl network
brat network
Reported Interactions
FBrf0237766-10.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Sxl 

Sxl

bait

fused to lexA DNA-binding domain

brat 

Brat

prey

fused to GAL4 activation domain

brat 
brat 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
brat 
NHL domain
sufficient binding region
aa 724-1037
brat 
N-terminal domain
sufficient binding region
aa 1-730
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Source was yeast cell line; bait produced as transgenic fusion protein; prey produced as transgenic fusion protein (prey was previously cloned reagent).

Two-hybrid system: yeast lexA-BD/GAL4-AD

FBrf0237766-11.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Sxl 

Sxl

bait

FLAG tag

brat 

Brat

prey

Myc tag

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 cell extract of S2 cell line; bait produced from transfected construct; prey produced from transfected construct.

FBrf0237766-18.BiFC.FM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Sxl 

Sxl

unspecified role

GFP tag, fragment unspecified

Sxl 

Sxl

unspecified role

GFP tag, fragment unspecified

Sxl 

Sxl

unspecified role

GFP tag, fragment unspecified

brat 

Brat

unspecified role

GFP tag, fragment unspecified

brat 
brat 
brat 

Brat

unspecified role

GFP tag, fragment unspecified

brat 

Brat

unspecified role

GFP tag, fragment unspecified

brat 
brat 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
brat 
NHL domain
sufficient binding region
aa 724-1037
brat 
N-terminal domain
sufficient binding region
aa 1-730
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Source was live HEK293T cells; proteins produced from transfected constructs.

FBrf0237766-8.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
brat 

Brat

bait

fused to lexA DNA-binding domain

Sxl 

Sxl

prey

fused to GAL4 activation domain

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 yeast cell line; bait produced as transgenic fusion protein; prey produced as transgenic fusion protein (prey was previously cloned reagent).

Two-hybrid system: yeast lexA-BD/GAL4-AD

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (1)