FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000111083
Interaction Network
Interactions Browser links
Arc1 network
Reported Interactions
FBrf0235788-911.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

Arc1-RA

bait

fused to GAL4 DNA-binding domain

Arc1 

Arc1-RA

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
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.(Pairwise.)

MORATORIUM:This data was made available \'pre-publication\' and, as such, its use is subject to the specific limitations described in FBrf0235788 for the period of 12 months. Moratorium expires on June 13, 2018.

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

FBrf0235788-911.Y2Hpool
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

Arc1-RA

bait

fused to GAL4 DNA-binding domain

Arc1 

Arc1-RA

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
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.(Pooled)

MORATORIUM:This data was made available \'pre-publication\' and, as such, its use is subject to the specific limitations described in FBrf0235788 for the period of 12 months. Moratorium expires on June 13, 2018.

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

FBrf0237707-1.coIP.PCR
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

bait
Arc1 

dArc1

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 cell extract of S2 cell line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0237707-2.coIP.PCR
Description
physical association
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

bait
Arc1 

dArc1

prey
Arc1 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Arc1 
3-prime UTR
sufficient binding region
nt 860-2301
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Source was larval body wall muscles of wild-type fly line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0237707-3.EM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

self
Arc1 

dArc1

self
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

Interaction in vitro; protein produced as a recombinant fusion protein in bacterial system.

Purified Arc1 protein assembles into capsid-like structures.

FBrf0244527-1.XC
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

neutral component
Arc1 
Arc1 

dArc1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Arc1 
CA domain
sufficient binding region
aa 39-205

coordinates relative to Arc1-PA

Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

The Arc1 CA domain crystallizes as a dimer.

Interaction in vitro; protein produced as a recombinant fusion protein in bacterial system.

FBrf0244527-2.CH.LS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

neutral component
Arc1 
Arc1 

dArc1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Arc1 
CA domain
sufficient binding region
aa 39-205

coordinates relative to Arc1-PA

Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; protein produced as a recombinant fusion protein in bacterial system.

The Arc1 CA domain forms a dimer in solution.

FBrf0244527-3.CS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

neutral component
Arc1 
Arc1 

dArc1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Arc1 
CA domain
sufficient binding region
aa 39-205

coordinates relative to Arc1-PA

Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

The observed sedimentation velocity of the Arc1 CA domain is consistent with a dimer.

Interaction in vitro; protein produced as a recombinant fusion protein in bacterial system.

FBrf0244795-1.EM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

neutral component
Arc1 
Arc1 

dArc1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Arc1 
interaction domain
sufficient binding region
aa 2-254
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; proteins produced as a recombinant fusion proteins in bacterial system.

Arc1 assembles into an icosahedral capsid.

FBrf0248964-2.XC
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

neutral component
Arc1 
Arc1 

dArc1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Arc1 
C-lobe domain
sufficient binding region
aa 123-208

coordinates relative to Arc1-PA

Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; protein produced as a recombinant fusion protein in bacterial system.

C-lobe forms a dimer in crystallo.

FBrf0248964-4.SAXS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

neutral component
Arc1 

dArc1

neutral component
Arc1 
Arc1 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Arc1 
N-lobe domain
sufficient binding region
aa 51-122

coordinates relative to Arc1-PA

Arc1 
C-lobe domain
sufficient binding region
aa 123-208

coordinates relative to Arc1-PA

Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; protein produced as a recombinant fusion protein in bacterial system.

Both the Arc1 N-lobe and C-lobe form dimers in solution.

FBrf0248964-6.CH.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

neutral component
Arc1 

dArc1

neutral component
Arc1 
Arc1 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Arc1 
N-lobe domain
sufficient binding region
aa 51-122

coordinates relative to Arc1-PA

Arc1 
C-lobe domain
sufficient binding region
aa 123-208

coordinates relative to Arc1-PA

Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; protein produced as a recombinant fusion protein in bacterial system.

Both the Arc1 N-lobe and C-lobe form dimers in solution.

FBrf0257874-1.coIP.SEQ
Description
physical association
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

bait
Arc1 

dArc1

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 adult males testes; bait and prey produced from endogenous gene.

FBrf0257874-4.coIP.PCR
Description
physical association
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Arc1 

dArc1

bait
Arc1 

dArc1

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 adult males testes; bait and prey produced from endogenous gene.

External Crossreferences and Linkouts ( 0 )
References (6)