FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000123371
Interaction Network
Interactions Browser links
foxo network
yki network
Reported Interactions
FBrf0260347-1.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
foxo 

Foxo

bait

FLAG tag

foxo 
foxo 
foxo 
yki 

Yki

prey

Myc tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
foxo 
C-terminal PPPY motif
necessary binding region
aa 322-325

322PPPY to AAAA325; coordinates relative to foxo-PF or foxo-PG

foxo 
C-terminal domain
sufficient binding region
aa 312-622

coordinates relative to foxo-PF or foxo-PG

foxo 
N-terminal domain
sufficient binding region
aa 1-311

coordinates relative to foxo-PF or foxo-PG

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

Source was cell extract of HEK293T cell line; bait produced from transfected construct; prey produced from transfected construct.

Addition of hydrogen peroxide, Paraquat or Usp7 transfection increased yki-foxo interaction, however this increased interaction was lost in foxo 2KR ubiquitination mutants (K182R and K205R). Additionally, transfection with wild-type N-terminal domain foxo, but not foxo 2KR, diminished foxo C and N-terminal interaction. sd transfection diminished foxo-yki interaction. Additional foxo-HA transfection diminishes foxo-yki interaction.

FBrf0260347-2.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
yki 

Yki

bait

Myc tag

yki 
yki 
foxo 

Foxo

prey

FLAG tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
yki 
C-terminal WW1 domain
mutation decreasing interaction
aa 265-297

coordinates relative to yki-PF or yki-PG

yki 
C-terminal WW2 domain
mutation decreasing interaction
aa 334-366

coordinates relative to yki-PF or yki-PG

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

Addition of hydrogen peroxide or Paraquat increased yki-foxo interaction in a time dependent manner. Usp7 transfection increased yki-foxo interaction.

Source was cell extract of HEK293T cell line; bait produced from transfected construct; prey produced from transfected construct.

FBrf0260347-3.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
foxo 

Foxo

bait
yki 

Yki

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 endogenous gene; prey produced from endogenous gene.

Knockdown of sd increased foxo-sd interaction. Addition of hydrogen peroxide increased foxo-yki interaction.

FBrf0260347-4.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
yki 

Yki

bait
foxo 

Foxo

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 endogenous gene; prey produced from endogenous gene.

FBrf0260347-5.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
yki 

Yki

bait

GST tag

yki 
foxo 

Foxo

prey

FLAG tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
yki 
C-terminal domain
sufficient binding region
aa 251-395

coordinates relative to yki-PF or yki-PG

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

Source was cell extract of HEK293T cell line; bait produced and prey produced from transfected constructs.

FBrf0260347-6.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
foxo 

Foxo

bait

GST tag

foxo 
yki 

Yki

prey

Myc tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
foxo 
C-terminal domain
sufficient binding region
aa 312-622

coordinates relative to foxo-PF or foxo-PG

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

Source was cell extract of HEK293T cell line; bait produced and prey produced from transfected constructs.

External Crossreferences and Linkouts ( 0 )
References (1)