FB2026_02 , released June 18, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000102803
Interaction Network
Interactions Browser links
Atf-2 network
Reported Interactions
FBrf0188065-1.PD.A
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

dATF-2

bait

GST tag

dATF-2

prey

[35]S label

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
C-terminal domain
sufficient binding region
aa 152-381

coordinates relative to Atf-2-PA

basic leucine zipper domain residues 323 and 330
mutation disrupting interaction
aa 323 and 330

L323V, L330V, coordinates relative to Atf-2-PA

basic leucine zipper domain residues 309-330
mutation disrupting interaction
aa 309-330

coordinates relative to Atf-2-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 and labeled by in vitro translation.

FBrf0227576-1.FRET
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

DM5

fluorescence donor

fluorescein label

DM5

fluorescence donor

fluorescein label

DM5

fluorescence acceptor

TAMRA label

DM5

fluorescence acceptor

TAMRA label

DM5

fluorescence donor

fluorescein label

DM5

fluorescence acceptor

TAMRA label

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
bZIP domain
sufficient binding region
PPKAAKAKDRSRDEDCMERRRAAASRYRNKMRNEHKDLIKQNAQLQQENQELHERISRLEKELQQHR
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; fluorescence donor produced as a recombinant fusion protein in bacterial system and labeled in vitro; fluorescence acceptor produced as a recombinant fusion protein in bacterial system and labeled in vitro.

Dissociation constant of Kd=5nM.

Interactions between bZIP proteins were quantified in vitro using a solution FRET assay at 4oC, 21oC and 37oC. Only interactions at 21oC with Kd < 5000 nm were curated by FlyBase.

External Crossreferences and Linkouts ( 0 )
References (2)