FB2026_02 , released June 18, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000102265
Interaction Network
Interactions Browser links
spag network
Hsp83 network
Reported Interactions
FBrf0224244-1.Y2H
Description
physical association
Assay
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
spag 

spag

bait

fused to GAL4 DNA-binding domain

spag 

CG1242

prey

fused to GAL4 activation domain

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
spag 
TPR motifs
necessary binding region
aa 96-197
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Source was yeast cell line; bait produced as transgenic fusion protein; prey produced as transgenic fusion protein (prey from embryo or ovary cDNA expression library).

Two-hybrid system: yeast GAL4-BD/GAL4-AD

FBrf0224244-14.coIP.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
spag 

Spag

bait

FLAG tag

spag 

CG1242

prey

21 peptides identified

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
spag 
TPR motifs
necessary binding region
aa 96-197
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Affinity purification of bait and identification of prey by MALDI peptide mapping.

Source was soluble cytosolic extract of S2 cell line; bait produced from transfected construct; prey produced from endogenous gene.

FBrf0224244-19.PD.A
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

HSP90

bait

GST tag

spag 

Spag

prey

[35]S label

spag 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
spag 
TPR motifs
necessary binding region
aa 96-197

\'ΔTPR\'

C-terminal region
sufficient binding region
aa 535-717
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 and labeled by in vitro translation.

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