FB2026_02 , released June 18, 2026
Physical Interaction report
Open Close
General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000107383
Interaction Network
Interactions Browser links
drk network
sev network
Reported Interactions
FBrf0057899-1.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
drk 

Drk

bait

GST tag

sev 

Sev

prey

fused to torso extracellular domain

sev 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
sev 
cytoplasmic domain
sufficient binding region
aa 2156-2554

coordinates relative to sev-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 derived from transgenic adult extract.

FBrf0057899-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
drk 

Drk

bait
sev 

Sev

prey

fused to torso extracellular domain

sev 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
sev 
cytoplasmic domain
sufficient binding region
aa 2156-2554

coordinates relative to sev-PA

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

Source was adults of transgenic fly line; bait produced from endogenous gene; prey produced from tagged transgenic construct.

FBrf0212242-1.FRET.FM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
sev 

sev

fluorescence donor

CFP tag

sev 

sev

fluorescence donor

CFP tag

sev 

sev

fluorescence donor

CFP tag

drk 

drk

fluorescence acceptor

RFP tag

drk 

drk

fluorescence acceptor

RFP tag

drk 

drk

fluorescence acceptor

RFP 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 live S2 cells; proteins produced from transfected constructs.

Uses sevS11 allele, a constitutively activated form that consists of the C-terminal Sev protein, which includes the intracellular tyrosine kinase domain, bound to the signal peptide of the Drosophila cuticle protein CP3 and the 10 amino acid Myc epitope. Interaction disrupted by coexpression of Socs36E but not coexpression of Socs36E-R500K

FBrf0259862-1.NMR
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
drk 

drk

neutral component
drk 

drk

neutral component
drk 

drk

neutral component
sev 
sev 

sev

neutral component
sev 

sev

neutral component
sev 
sev 

sev

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
sev 
C-terminal tail
sufficient binding region
aa 2543-2553

Residue Y2546 phosphorylated; coordinates relative to sev-PA

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

Interaction in vitro; drk produced as a recombinant fusion protein in bacterial system; sev chemically synthesized.

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (3)