FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000121227
Interaction Network
Interactions Browser links
aub network
krimp network
Reported Interactions
FBrf0249362-1.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
aub 

Aub

bait

FLAG tag

Krimp

prey

GFP tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
interaction domain
sufficient binding region
aa 301-746

coordinates relative to krimp-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.

Step one in a two step sequential IP from S2 cells expressing aub, krimp and AGO3. The anti-FLAG(aub) immunoprecipitate was then subsequently immunoprecipitated with anti-GFP(krimp). The presence of AGO3 in the final precipitate suggests that one molecule of krimp binds aub and AGO3.

FBrf0249362-4.ITC
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Krimp

bait
aub 

Aub

prey
aub 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
eTud2 domain
sufficient binding region
aa 562-746

coordinates relative to krimp-PA

aub 
interaction domain
sufficient binding region
aa 6-18
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Kd = 8.26uM with R15me2 modified aub.

Interaction in vitro; bait produced as a recombinant fusion protein in bacterial system; prey peptide source unspecified.

FBrf0249362-5.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Krimp

bait

GFP tag

aub 

Aub

prey

FLAG tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
interaction domain
sufficient binding region
aa 1-512

coordinates relative to krimp-PA

N-terminal domain
necessary binding region
aa 1-271

coordinates relative to krimp-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.

FBrf0249362-6.XC
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Krimp

neutral component

Krimp

neutral component

Krimp

neutral component
aub 
aub 

Aub

neutral component
aub 

Aub

neutral component
aub 
aub 

Aub

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
eTud2 domain
sufficient binding region
aa 562-746

coordinates relative to krimp-PA

aub 
interaction domain
sufficient binding region
aa 6-18
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

The aub peptide was R15me2 modified.

Interaction in vitro; krimp produced as a recombinant fusion protein in bacterial system; aub peptide source unspecified.

External Crossreferences and Linkouts ( 0 )
References (1)