FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000097944
Interaction Network
Interactions Browser links
Rcd-1 network
Not1 network
Reported Interactions
FBrf0221179-13.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Not1 

NOT1

bait

GFP tag

Not1 

CAF40

prey

HA tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Not1 
central region
sufficient binding region
aa 1152-1717
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 transfected construct.

Rcd-1 (CAF40) preferentially associates with Not1 over other components of the CCR-NOT complex (Rga, Not3, Pop2 and twin).

FBrf0221179-18.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CAF40

bait

GFP tag

Not1 

NOT1

prey

HA tag

Not1 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
armadillo repeats region
sufficient binding region
aa 25-291
Not1 
DUF3819 domain
sufficient binding region
aa 1387-1717
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 transfected construct.

FBrf0252424-1.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CAF40

bait

GFP tag

Not1 

NOT1

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

Positive control

FBrf0257826-5.CH.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Not1 

Not1

neutral component
Not1 

Not1

neutral component
Not1 
Not1 

Not1

neutral component
Not1 

Caf40

neutral component

Caf40

neutral component

Caf40

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Not1 
mini interaction domain
sufficient binding region
aa 1147-2505

N-terminally truncated; does not contain binding sites for entire CCR4-NOT complex.

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

Hexameric CCR4-NOT-mini complex captured as 15 pairwise interactions.

Interaction in vitro; proteins produced as a recombinant fusion proteins in baculovirus and insect cell system.

FBrf0262483-4.CL.FM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Not1 

Not1

bait

mCherry tag, fused to the plasma membrane

Caf40

prey

EGFP 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

Not1 was fused to a plasma membrane anchor. The ability of this chimera to recruit prey protein to the plasma membrane was taken as evidence of direct physical interaction.

Source was live S2R+ cells; bait and prey produced from endogenous genes.

FBrf0262483-7.CL.FM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Caf40

bait

mCherry tag, fused to the plasma membrane

Not1 

Not1

prey

EGFP 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 S2R+ cells; bait and prey produced from endogenous genes.

Rcd-1 was fused to a plasma membrane anchor. The ability of this chimera to recruit prey protein to the plasma membrane was taken as evidence of direct physical interaction.

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (4)