FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000123395
Interaction Network
Interactions Browser links
ci network
tai network
Reported Interactions
FBrf0260945-1.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
tai 

tai

bait

FG tag

tai 
ci 

ci

prey

Myc tag

ci 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
ci 
middle domain
sufficient binding region
aa 441-1160

coordinates relative to ci-PA

tai 
F4 LSKLL motif
mutation decreasing interaction
aa 1343, 1346, 1347

L1343A, L1346A, L1347A; within the context of aa 951-1400; coordinates relative to tai-PG

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

Source was cell extract of 293T cell line; bait produced from transfected construct; prey produced from transfected construct.

Addition of hh inhibited ci-tai interaction.

FBrf0260945-2.coIP.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
ci 

ci

bait

Myc tag

ci 
tai 

tai

prey

Fg tag

tai 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
ci 
DBD domain
sufficient binding region
aa 441-800

coordinates relative to ci-PA

tai 
F4 domain
sufficient binding region
aa 951-1400

coordinates relative to tai-PG

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

Source was cell extract of 293T cell line; bait produced from transfected construct; prey produced from transfected construct.

FBrf0260945-3.EMSA
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
ci 

ci

neutral component

His tag

ci 
ci 

ci

neutral component

His tag

ci 
ci 

ci

neutral component

His tag

tai 
tai 

tai

neutral component

His tag

tai 

tai

neutral component

His tag

tai 
tai 

tai

neutral component

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
ci 
middle domain
sufficient binding region
aa 441-1160

coordinates relative to ci-PA

tai 
F4 LSKLL motif
mutation decreasing interaction
aa 1343, 1346, 1347

L1343A, L1346A, L1347A; within the context of aa 951-1400; coordinates relative to tai-PG

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

tai inhibits ci DNA binding.

tai and ci were incubated simultaneously with biotin labeled DNA and detected by chemiluminescence. Diminishment of ci DNA binding by addition of tai was used to deduce protein-protein interaction. Addition of tai after pre-incubation of ci and DNA did not diminish ci DNA binding suggesting that tai cannot dissociate

the existing ci-DNA complex.

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

External Crossreferences and Linkouts ( 0 )
References (1)