FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000103893
Interaction Network
Interactions Browser links
PlexB network
PlexA network
Reported Interactions
FBrf0190270-1.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

PlexA

unspecified role

PlexA

unspecified role

PlexA

unspecified role

PlexB

unspecified role

PlexB

unspecified role

PlexB

unspecified role
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
C-terminal region C2
sufficient binding region
aa 1702-1945

coordinates relative to PlexA-PA

C-terminal region C1
sufficient binding region
aa 1402-1784
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

FBrf0190270-2.coIP.WB
Description
physical association
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note

PlexA

bait

HA tag

PlexB

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 embryos of transgenic fly line; bait produced from tagged transgenic construct; prey produced from tagged transgenic construct.

Tagged proteins expressed in embryonic neurons only.

FBrf0223742-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

PlexB

bait

Myc tag

PlexA

prey

HA 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 S2R+ cell line; bait produced from transfected construct; prey produced from transfected construct.

Positive control.

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (2)