FB2026_03 , released September 17, 2026
Physical Interaction report
Open Close
General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000123610
Interaction Network
Interactions Browser links
Ubx network
Reported Interactions
FBrf0261482-1.EM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Ubx 

Ubx

self

EGFP-His tag

Ubx 

Ubx

self

EGFP-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

Ubx forms large fibrils in vitro, visible by scanning electron microscopy.

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

Purified recombinant Ubx was incubated in a Langmuir trough for varying amounts of time, aggregates were then pulled onto a film by the Langmuir technique to form larger fibrils.

FBrf0262829-5.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Ubx 

Ubx

bait

GST tag

Ubx 

Ubx

prey

MBP tag

Ubx 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Ubx 
homeodomain
sufficient binding region
aa 282-346

; coordinates relative to Ubx-PE

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

Interaction in vitro; bait and prey produced as recombinant fusion proteins in bacterial system.

Ubx is able to dimerize with Ubx N51A..

FBrf0262829-7.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Ubx 

Ubx

bait

GFP tag

Ubx 

Ubx

prey

Myc tag

Ubx 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Ubx 
Homeodomain residue 51
mutation decreasing interaction
aa 51

N51A

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

Source was cell extract of S2R+ cell line; bait produced from transfected construct; prey produced from transfected construct.

External Crossreferences and Linkouts ( 0 )
References (2)