FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000108378
Interaction Network
Interactions Browser links
arm network
baz network
Reported Interactions
FBrf0187414-3.PD.A
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
arm 

Arm

bait

GST tag

arm 
arm 
baz 

Baz

prey

[35]S label

baz 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
arm 
C-terminal region
sufficient binding region
aa 790-843

coordinates relative to arm-PA

arm 
C-terminal ten residues
necessary binding region
NLAAWYDTDC

coordinates relative to arm-PA

baz 
PDZ domains
sufficient binding region
aa 303-748

coordinates relative to ed-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.

FBrf0187414-5.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
arm 

Arm

bait
baz 

Baz

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

FBrf0187414-8.Y2H
Reference
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
arm 

Arm

unspecified role
arm 

Arm

unspecified role
arm 
arm 
arm 

Arm

unspecified role
arm 
arm 
baz 

Baz

unspecified role
baz 
baz 

Baz

unspecified role
baz 

Baz

unspecified role
baz 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
arm 
C-terminal region
sufficient binding region
aa 790-843

coordinates relative to arm-PA

arm 
C-terminal ten residues
necessary binding region
NLAAWYDTDC

coordinates relative to arm-PA

baz 
PDZ domains
sufficient binding region
aa 303-748

coordinates relative to ed-PA

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

Source was yeast cell line; proteins produced as transgenic fusion proteins (were previously cloned reagents).

Two-hybrid system: yeast

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