FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000103603
Interaction Network
Interactions Browser links
dlg1 network
Vang network
Reported Interactions
FBrf0167532-1.PD.A
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
dlg1 

Dlg

bait

GST tag

Vang 

Stbm

prey

[35]S label

Vang 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Vang 
PDZ Binding Motif
necessary binding region
aa 579-581
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.

FBrf0167532-2.PD.A
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Vang 

Stbm

bait

GST tag

Vang 
dlg1 

Dlg

prey

[35]S label

dlg1 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Vang 
PDZ Binding Motif
sufficient binding region
aa 550-581
dlg1 
PDZ1-3
sufficient binding region
aa 39-640

coordinates relative to dlg1-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 and labeled by in vitro translation.

FBrf0167940-1.Y2H
Reference
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
dlg1 

Dlg

bait
dlg1 
Vang 

Stbm

prey
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
dlg1 
PDZ1 and PDZ2 domains
sufficient binding region
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).

FBrf0167940-2.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
dlg1 

Dlg

bait
Vang 

Stbm

prey
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 embryo extract of wild-type fly line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0167940-3.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Vang 

Stbm

bait
dlg1 

Dlg

prey
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 embryo extract of wild-type fly line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0167940-4.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
dlg1 

Dlg

bait
Vang 

Stbm

prey
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 Cos7 cell line; bait produced from transfected construct; prey produced from transfected construct.

FBrf0167940-5.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Vang 

Stbm

bait

GST tag

Vang 
Vang 
dlg1 

Dlg

prey

T7 tag

dlg1 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
dlg1 
PDZ1 and PDZ2 domains
sufficient binding region
Vang 
PBM domain
sufficient binding region
Vang 
PBM domain
mutation disrupting interaction

ETSV to EASV

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.

FBrf0187224-2.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Vang 

Stbm

bait

fused to DNA-binding domain

Vang 
dlg1 

Dlg

prey

fused to activation domain

dlg1 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Vang 
C-terminal domain
sufficient binding region
aa 294-584
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).

Vang interacts with dlg1, but not with par-6, aPKC, Patj, sdt or baz in this assay.

Two-hybrid system: yeast

Positive control.

FBrf0208559-1.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Vang 

Stbm

bait

fused to GAL4 DNA-binding domain

Vang 
dlg1 

Dlg

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
Vang 
C terminal domain
sufficient binding region
aa 294-584
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).

l(2)gl, baz, par-6, Patj, and sdt did not interact with Vang in this experiment.

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

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