FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000108431
Interaction Network
Interactions Browser links
stumps network
htl network
Reported Interactions
FBrf0160399-11.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dof

bait

fused to GAL4 DNA-binding domain

htl 

heartless

prey

fused to GAL4 activation domain

htl 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
N terminal region
sufficient binding region
aa 1-802
htl 
ATP kinase domai
sufficient binding region
aa 490-729
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 embryo cDNA expression library).

Two-hybrid system: yeast GAL4-BD/GAL4-AD, this screen utilized the activation of both a LacZ and His3 reporter gene.

FBrf0160399-53.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dof

bait

fused to GAL4 DNA-binding domain

htl 

heartless

prey

fused to GAL4 activation domain

htl 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
N terminal region
sufficient binding region
aa 1-802
htl 
ATP kinase domai
sufficient binding region
aa 490-729
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 GAL4-BD/GAL4-AD, this assay utilized an Ade2 reporter gene which the authors claim is more stringent than a LacZ/His3 reporter assay.

FBrf0174960-1.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dof

bait

fused to GAL4 DNA-binding domain

htl 

Htl

prey

fused to GAL4 activation domain

htl 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
C terminally truncated sequence
sufficient binding region
aa 1-802
htl 
C terminally truncated sequence
sufficient binding region
aa 491-730
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 from embryo cDNA expression library).

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

FBrf0174960-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dof

bait

F:AG tag

htl 

Htl

prey

HA tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
interaction domain
sufficient binding region
aa 1-446
Dof BCAP and BANK domain
necessary binding region
aa 168-364
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.

FBrf0174960-3.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dof

bait

fused to GAL4 DNA-binding domain

htl 

Htl

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
interaction domain
sufficient binding region
aa 1-446
Dof BCAP and BANK domain
necessary binding region
aa 168-364
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 GAL4-BD/GAL4-AD

FBrf0174966-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
htl 

Htl

bait

MYC tag

Dof

prey

V5 tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
N terminal domain
sufficient binding region
aa 1-600

coordinates relative to stumps-PA

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.

The coIP was performed with an activated form of htl.

FBrf0210374-1.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dof

bait

FLAG tag

htl 

Htl

prey

HA tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
N terminal domain
sufficient binding region
aa 1-522

coordinates relative to stumps-PB

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.

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (4)