FB2026_03 , released September 17, 2026
Physical Interaction report
Open Close
General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000099325
Interaction Network
Interactions Browser links
polo network
Reported Interactions
FBrf0222183-5.ENZ.A
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
polo 

Polo

self

[32]P label, His tag

polo 

Polo

self

[32]P label, His 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

Interaction in vitro; enzyme produced as a recombinant fusion protein in baculovirus-infected Sf9 cell system.

polo kinase is autophosphorylated.

FBrf0237276-1.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
polo 

PBD

bait

GST tag, polo-box domain

polo 

KD

prey

FLAG tag, kinase domain

polo 
polo 
polo 
polo 
polo 
polo 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
polo 
polo-box domain
sufficient binding region
aa 350-576
polo 
kinase domain
sufficient binding region
aa 1-349
polo 
kinase domain residue 182
mutation decreasing interaction
aa 182

T182D

polo 
NLS domain
mutation disrupting interaction
aa 106-118

K106A,K107A,R108A,K115A,R116A,R117A,K118A

polo 
polo-box domain residue 384
mutation decreasing interaction
aa 384

P384R

polo 
polo-box domain residue 527
mutation disrupting interaction
aa 527

M527R

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 S2 cell extract.

Intramolecular interaction. The C-terminal polo-box domain of polo interacts with the N-terminal kinase domain.

FBrf0237276-3.BRET.FT
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
polo 

KD

fluorescence donor

luciferase tag

polo 

KD

fluorescence donor

luciferase tag

polo 

PBD

fluorescence acceptor

GFP tag

polo 
polo 
polo 

PBD

fluorescence acceptor

GFP tag

polo 

KD

fluorescence donor

luciferase tag

polo 

PBD

fluorescence acceptor

GFP tag

polo 
polo 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
polo 
kinase domain residue 182
mutation decreasing interaction
aa 182

T182D

polo 
NLS domain
mutation disrupting interaction
aa 106-118

K106A,K107A,R108A,K115A,R116A,R117A,K118A

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

Source was live HEK293T cells; fluorescence donor produced from tagged transfected construct; fluorescence acceptor produced from tagged transfected construct.

A Map205 peptide that promotes the polo KD-PBD interaction was coexpressed with the polo fragments.

External Crossreferences and Linkouts ( 0 )
References (2)