FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000105184
Interaction Network
Interactions Browser links
yrt network
aPKC network
Reported Interactions
FBrf0224657-1.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
yrt 

Yrt

bait
aPKC 

aPKC

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 embryos of wild-type fly line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0224657-2.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
yrt 

Yrt

bait

GST tag

yrt 
yrt 
yrt 
aPKC 

aPKC

prey
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
yrt 
FA domain
sufficient binding region
aa 350-415

coordinates relative to yrt-PA

yrt 
FA domain
necessary binding region
aa 350-415

coordinates relative to yrt-PA

yrt 
FA domain residues 348-392
mutation disrupting interaction
aa 348-392

"5D" construct, S348D, S358D, T379D, S387D and S392D, coordinates relative to yrt-PA

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 embryonic extract.

Phosphorylation of the yrt FA domain inhibits binding by aPKC, since the phosphomimetic "5D" mutation disrupts binding.

FBrf0224657-3.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
yrt 

Yrt

bait

GST tag

yrt 
aPKC 

aPKC

prey

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
yrt 
FA domain
sufficient binding region
aa 350-415

coordinates relative to yrt-PA

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.

FBrf0224657-4.ENZ.A.MS
Reference
Description
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
aPKC 

aPKC

enzyme

His tag

aPKC 

aPKC

enzyme

His tag

yrt 

yrt

enzyme target

GST tag, P[32] label

yrt 

yrt

enzyme target

GST tag, P[32] label

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