FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000115998
Interaction Network
Interactions Browser links
Egfr network
Graf network
Reported Interactions
FBrf0237228-1.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Graf 

Graf

bait

GST tag

Egfr 

EGFR

prey

FLAG 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

Interaction in vitro; bait produced as a recombinant fusion protein in bacterial system; prey derived from transfected S2R+ cells.

Treatment of cells with spi increases the Graf-Egfr interaction. Knockdown of Cbl via dsRNA or the Y1271F Egfr mutation decreases the spi induced Graf-Egfr interaction but has no effect on the basal Graf-Egfr interaction.

FBrf0237228-2.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Egfr 

EGFR

bait

FLAG tag

Graf 

Graf

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 S2 cell line; bait produced from transfected construct; prey produced from endogenous gene.

Treatment of cells with spi increases the Graf-Egfr interaction. Knockdown of Cbl via dsRNA or the Y1271F Egfr mutation decreases the spi induced Graf-Egfr interaction but has no effect on the basal Graf-Egfr interaction.

FBrf0237228-3.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Egfr 

EGFR

bait

GST tag

Egfr 
Graf 

Graf

prey

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Egfr 
intracellular domain
sufficient binding region
aa 885-1426
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.

The addition of a ubiquitin tag to Egfr increases the Graf-Egfr interaction.

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