FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000115938
Interaction Network
Interactions Browser links
ave network
cnk network
Reported Interactions
FBrf0237050-3.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
cnk 

Cnk

bait

fused to GAL4 DNA-binding domain

ave 

Ave

prey

fused to GAL4 activation domain

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 yeast cell line; bait produced as transgenic fusion protein; prey produced as transgenic fusion protein (prey from unspecified library).

Two-hybrid system: yeast GAL4-BD/GAL4-AD

FBrf0260095-1.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
cnk 

CNK

bait

GST tag

cnk 
ave 

HYP

prey

Pyo tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
cnk 
SAM and CRIC domains
sufficient binding region
aa 2-209

coordinates relative to cnk-PA

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

Co-expression of ksr and Dsor1 increase cnk-ave interaction with cnk aa 2-549 and 2-384 constructs, but not aa 2-209 which lacks the PDZ domain.

Source was cell extract of S2 cell line; bait produced from transfected construct; prey produced from transfected construct.

FBrf0260095-10.CH.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
ave 

HYP

neutral component

His tag

ave 

HYP

neutral component

His tag

ave 

HYP

neutral component

His tag

cnk 

CNK

neutral component

GST tag

cnk 
cnk 

CNK

neutral component

GST tag

cnk 

CNK

neutral component

GST tag

cnk 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
cnk 
SAM-CRIC-PDZ domains
sufficient binding region
aa 2-330

coordinates relative to cnk-PA

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

Purified ave-cnk heterodimer was mixed with an equimolar ratio of ksr-Dsor1 heterodimer, which eluted as a higher order complex captured as series of binary interactions that do not necessarily indicate direct protein-protein contact. Mutations in cnk or ksr interfere with the higher order cnk-ave-ksr-Dsor1 complex.

Interaction in vitro; proteins produced as a recombinant fusion proteins in bacterial cell system.

FBrf0260095-18.EM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
ave 

HYP

neutral component

His tag

ave 

HYP

neutral component

His tag

ave 

HYP

neutral component

His tag

cnk 

CNK

neutral component

GST tag

cnk 
cnk 

CNK

neutral component

GST tag

cnk 

CNK

neutral component

GST tag

cnk 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
cnk 
SAM-CRIC-PDZ domains
sufficient binding region
aa 2-330

coordinates relative to cnk-PA

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

cryoEM structure of ave-cnk-ksr-Dsor1 complex captured as a series of binary interactions that are not all direct. cryoEM indicates direct interaction between ave-cnk, ksr-Dsor1, cnk-ksr and cnk-Dsor1.

Interaction in vitro; proteins produced as recombinant fusion proteins in bacterial system.

FBrf0260095-4.XC
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
cnk 

CNK

neutral component

GST tag

cnk 
cnk 

CNK

neutral component

GST tag

cnk 
cnk 

CNK

neutral component

GST tag

ave 

HYP

neutral component

His tag

ave 

HYP

neutral component

His tag

ave 

HYP

neutral component

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
cnk 
SAM-CRIC-PDZ domains
sufficient binding region
aa 2-330

coordinates relative to cnk-PA

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

Interaction in vitro; proteins produced as a recombinant fusion proteins in bacterial system.

FBrf0260095-5.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
ave 

HYP

bait

GST tag

ave 
ave 
cnk 

CNK

prey

FLAG tag

cnk 
cnk 
cnk 
cnk 
cnk 
cnk 
cnk 
cnk 
cnk 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
cnk 
α3-CRIC domain residue 123
mutation decreasing interaction
aa 123

I123D; within the context of aa 2-549; coordinates relative to cnk-PA

cnk 
CRIC domain residue 152
mutation decreasing interaction
aa 152

L152D; within the context of aa 2-549; coordinates relative to cnk-PA

cnk 
SAM domain residues 67 and 74
mutation disrupting interaction
aa 67 and 74

A67F, F74R; within the context of aa 2-549; coordinates relative to cnk-PA

cnk 
PDZ domain residue 252
mutation disrupting interaction
aa 252

E252R; within the context of aa 2-549; coordinates relative to cnk-PA

cnk 
PDZ domain residue 250 and SAM domain residue 74
mutation disrupting interaction
aa 250 and 74

F74R, E250R; within the context of aa 2-549; coordinates relative to cnk-PA

cnk 
CRIC domain residue 81
mutation decreasing interaction
aa 81

D81R; within the context of aa 2-549; coordinates relative to cnk-PA

cnk 
PDZ domain residue 283
mutation decreasing interaction
aa 283

K283D; within the context of aa 2-549; coordinates relative to cnk-PA

cnk 
CRIC domain residue 82
mutation decreasing interaction
aa 82

N82E or N82W; within the context of aa 2-549; coordinates relative to cnk-PA

cnk 
CRIC domain residue 84
mutation decreasing interaction
aa 84

Q84E; within the context of aa 2-549; coordinates relative to cnk-PA

ave 
SAM domain residue 90
mutation decreasing interaction
aa 90

L90D; coordinates relative to ave-PA

ave 
SAM domain residue 97
mutation decreasing interaction
aa 97

I97D; coordinates relative to ave-PA

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

Co-expression with Ras85D, Raf, Dsor1 and ksr ameliorates cnk SAM and PDZ mutations that decrease or disrupt cnk-ave interaction. Individual mutations in aa 81 and 283 to disrupt a salt interaction within cnk reduce interaction with ave, while mutation of both, restore the interaction to wild type levels. Disruption of cnk-ave interaction with cnk N82E, N82W or Q84E mutations only occur with co-expression of ksr and Dsor1.

Source was cell extract of S2 cell line; bait produced from transfected construct; prey produced from transfected construct.

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