FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000101971
Interaction Network
Interactions Browser links
AGO1 network
nanos network
Reported Interactions
FBrf0220359-3.coIP.PCR
Description
physical association
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
AGO1 

Ago1

bait

nanos

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.

The interaction of AGO1 with nos mRNA is not disrupted by mutations in AGO1 (K657A, K694A) that disrupt its binding to miRNAs.

AGO1 is recruited to nos mRNA in a miRNA-independent, smg-dependent process.

smg and AGO1, but not AGO2, repress the translation of unlocalized nos RNA in early embryos.

Embryo extracts were crosslinked, immunoprecipitated and the level of specific coimmunoprecipitated mRNAs was quantified by RT-qPCR.

FBrf0247403-13.coIP.PCR
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
AGO1 

Ago1

bait

FLAG tag

Nos

prey
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
3-prime UTR proximal
sufficient binding region
nt 21-100
3-prime UTR miRNA binding sites
mutation disrupting interaction
nt 34-40,76-81

GGCAGCU to GGUAGUU and CAUUCC to CAUUUU

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.

FBrf0247403-6.coIP.PCR
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
AGO1 

Ago1

bait

FLAG tag

Nos

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 transfected construct; prey produced from endogenous gene.

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (2)