FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
physical association
Interacting Genes
POSH, ex
FlyBase ID
FBig0000116472
Interaction Network
Interactions Browser links
POSH network
ex network
Reported Interactions
FBrf0238282-1.coIP.WB
Reference
Ma et al., 2018
Description
physical association
Assay
Collection
Source/Stage
Cell line used
S2-unspecified
Participants
Corresponds to
Reported as
Role
Note
POSH 

POSH

bait

HA tag

ex 

Ex

prey

Myc tag

ex 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
ex 
C2 domain
sufficient binding region
aa 955-1199
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.

(Ma et al., 2018)
FBrf0238282-2.coIP.WB
Reference
Ma et al., 2018
Description
physical association
Assay
Collection
Source/Stage
Cell line used
S2-unspecified
Participants
Corresponds to
Reported as
Role
Note
ex 

Ex

bait

Myc tag

ex 
ex 
POSH 

POSH

prey

HA tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
ex 
C2 domain
sufficient binding region
aa 955-1199
ex 
SH3-binding domain
mutation decreasing interaction
aa 1149-1157

deletion of aa 1149-1157

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.

(Ma et al., 2018)
External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (1)