FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000095776
Interaction Network
Interactions Browser links
cos network
Reported Interactions
FBrf0183877-6.CL.FM
Description
physical association
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
cos 

Cos2

bait

HA tag; fused to the kinesin heavy chain (Khc) motor domain

cos 

Cos2

prey

flag tag

cos 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
cos 
interaction domain
sufficient binding region
aa 390-1201

coordinates relative to cos-PA

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

Bait protein was fused to the motor domain of kinesin heavy chain (Khc), which targets the chimera to the plus end of microtubules. The ability of this chimera to recruit prey protein to the plus end of microtubules was taken as evidence of direct physical interaction.

Source was larval wing discs of transgenic fly line; bait produced from tagged transgenic construct; prey produced from transgenic construct.

FBrf0217260-3.FRET
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
cos 

Cos2

fluorescence donor

C-terminal CFP

cos 

Cos2

fluorescence donor

C-terminal CFP

cos 

Cos2

fluorescence acceptor

C-terminal YFP

cos 

Cos2

fluorescence acceptor

C-terminal YFP

cos 

Cos2

fluorescence donor

C-terminal CFP

cos 

Cos2

fluorescence acceptor

C-terminal YFP

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 S2 cell line transfected with tagged cos constructs.

Separate molecules tagged with CFP and YFP; assaying homodimerization.

FBrf0217260-4.FRET
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
cos 

Cos2

fluorescence donor

C-terminal CFP

cos 

Cos2

fluorescence donor

C-terminal CFP

cos 

Cos2

fluorescence acceptor

C-terminal YFP

cos 

Cos2

fluorescence acceptor

C-terminal YFP

cos 

Cos2

fluorescence donor

C-terminal CFP

cos 

Cos2

fluorescence acceptor

C-terminal YFP

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 wing discs from transgenic line carrying tagged cos constructs.

Separate molecules tagged with CFP and YFP; assaying homodimerization.

FBrf0217531-8.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
cos 

cos

bait

Myc tag

cos 

cos

prey

HA tag

cos 
cos 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
cos 
interaction domain
sufficient binding region
aa 900-1201
cos 
interaction domain
necessary binding region
aa 900-1201
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.

External Crossreferences and Linkouts ( 0 )
References (3)