FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000102176
Interaction Network
Interactions Browser links
pita network
Cp190 network
Reported Interactions
FBrf0224437-6.coIP.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait

TAP tag

pita 

Pita

prey

4 peptides identified

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 endogenous gene.

TAP tandem affinity purification of bait and identification of prey by mass spectrometry.

FBrf0227255-11.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait
pita 

Pita

prey

FLAG 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 nuclear extract of S2 cell line; bait produced from transfected construct; prey produced from transfected construct.

FBrf0227255-13.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait
pita 

Pita

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 embryonic nuclear extract of wild-type fly line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0227255-15.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
pita 

Pita

bait

CP190

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 embryonic nuclear extract of wild-type fly line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0227255-20.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait

fused to GAL4 DNA-binding domain

pita 

Pita

prey

fused to GAL4 activation domain

pita 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
BTB domain
sufficient binding region
aa 1-166
pita 
N-terminal region
sufficient binding region
aa 1-209aa 77-284
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

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

Positive control.

Source was yeast cell line; bait produced as transgenic fusion protein; prey produced as transgenic fusion protein (prey was previously cloned reagent).

Cp190 binds at least two distinct sites in N-terminal region of pita. The pita ZAD domain is not sufficient or even necessary for binding to Cp190.

FBrf0227255-22.PD.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
pita 

Pita

bait

MBP tag

CP190

prey

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; bait produced as a recombinant fusion protein in bacterial system; prey produced as a recombinant fusion protein in bacterial system.

FBrf0227255-24.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait

His tag

pita 

Pita

prey

GST tag

pita 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
BTB domain
sufficient binding region
aa 1-126
pita 
N-terminal region
sufficient binding region
aa 1-209aa 95-302
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 produced as a recombinant fusion protein in bacterial system.

FBrf0227255-9.coIP.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait

FLAG tag

pita 

pita

prey

24 unique peptides

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

pita enriched 6-fold in Cp190 purification compared to negative control.

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

FBrf0248449-1.PD.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
pita 

Pita

bait

GST tag

pita 
pita 
pita 

CP190

prey

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
pita 
CP2 domain
sufficient binding region
aa 95-166

coordinates relative to pita-PA

pita 
CP1 domain
sufficient binding region
aa 220-232

coordinates relative to pita-PA

pita 
CP1 domain
necessary binding region
aa 220-232

coordinates relative to pita-PA

BTB domain
sufficient binding region
unspecified
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 produced as a recombinant fusion protein in bacterial system.

FBrf0248449-2.PD.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait

His tag

pita 

Pita

prey

GST tag

pita 
pita 
pita 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
pita 
CP2 domain
sufficient binding region
aa 95-166

coordinates relative to pita-PA

pita 
CP1 domain
sufficient binding region
aa 220-232

coordinates relative to pita-PA

pita 
CP1 domain
necessary binding region
aa 220-232

coordinates relative to pita-PA

BTB domain
sufficient binding region
unspecified
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 produced as a recombinant fusion protein in bacterial system.

FBrf0248449-3.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait
pita 

Pita

prey

FLAG tag

pita 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
pita 
CP1 domain
necessary binding region
aa 220-232

coordinates relative to pita-PA

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.

FBrf0251881-9.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

CP190

bait

fused to GAL4 DNA-binding domain

pita 

Pita

prey

fused to GAL4 activation domain

pita 
pita 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
BTB interaction domain residues 1-166
sufficient binding region
aa 1-126

coordinates relative to Cp190-PA

interaction residue 7
mutation disrupting interaction
aa 7

V7A; coordinates relative to Cp190-PA; mutation within the context of BTB interaction domain residues 1-126

pita 
interaction domain residues 220-232
mutation disrupting interaction
aa 220-232

deletion of aa 220-232; disruption occurs only within the context of Cp190 BTB domain 1-126 as bait, not full length Cp190.

pita 
interaction domain residues 114-164
mutation disrupting interaction
aa 114-164

deletion of aa 114-164 is able to interact with all other Cp190 BTB interaction residue mutations(15,19,114,117) with the exception of V7A and L118A.

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 was from cDNA library of 154 Drosophila C2H2 domain proteins).

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

FBrf0253430-37.PD.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Cp190

bait

GFP tag

pita 

pita

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

Interaction in vitro; bait produced as a recombinant fusion protein in bacterial system; prey derived from wild-type, nuclear embryonic extract.

FBrf0258035-5.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Cp190

bait

fused to GAL4 DNA-binding domain

pita 

pita

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
BTB domain
sufficient binding region
aa 1-126

within the context of aa 1-293; coordinates relative to Cp190-PA

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

Two-hybrid system: yeast GAL4-BD/VP16-AD

Source was yeast cell line; bait produced as transgenic fusion protein; prey produced as transgenic fusion protein (prey was previously cloned reagent).

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (6)