FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000116799
Interaction Network
Interactions Browser links
Antp network
Taf3 network
Reported Interactions
FBrf0205311-1.Y2H
Description
physical association
Assay
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Antp 

ANTP

bait

fused to LexA DNA-binding domain

Antp 
Taf3 

BIP2

prey

fused to GAL4 activation domain

Taf3 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Antp 
YPWM domain
sufficient binding region
aa 280-303

coordinates relative to Antp-PJ

Taf3 
interaction domain
sufficient binding region
aa 853-1088
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 from larval cDNA expression library).

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

FBrf0205311-2.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Antp 

ANTP

bait

fused to LexA DNA-binding domain

Antp 
Antp 
Taf3 

BIP2

prey

fused to GAL4 activation domain

Taf3 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Antp 
YPWM domain
sufficient binding region
aa 280-296

coordinates relative to Antp-PJ

Antp 
YPWM domain residues 284-287
mutation disrupting interaction
aa 284-287

YPWM to AAAA, coordinates relative to Antp-PJ

Taf3 
interaction domain
sufficient binding region
aa 853-1088
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

FBrf0205311-3.PD.A
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Antp 

ANTP

bait

GST tag

Antp 
Taf3 

BIP2

prey

[35]S label

Taf3 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Antp 
YPWM and HD domain
sufficient binding region
aa 279-356
Taf3 
interaction domain
sufficient binding region
aa 853-1088
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 and labeled by in vitro translation.

FBrf0205311-4.coIP.WB
Description
physical association
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Taf3 

BIP2

bait

HA tag

Antp 

ANTP

prey
Antp 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Antp 
YPWM domain residues 284-287
mutation disrupting interaction
aa 284-287

YPWM to AAAA, coordinates relative to Antp-PJ

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

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

External Crossreferences and Linkouts ( 0 )
References (1)