FB2024_04 , released June 25, 2024
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000098700
Interaction Network
Interactions Browser links
loqs network
Dcr-2 network
esyN Network Diagram
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Protein
RNA
Selected Interactor(s)
Common Interactor(s)
Reported Interactions
FBrf0205160-4.coIP.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

Dcr-2

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.

FBrf0208906-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dcr-2

bait

FLAG tag

loqs 

Loqs

prey

T7 tag

loqs 
loqs 
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 transfected construct.

Dcr-2 and Dcr-1 preferentially interact with different isoforms of loqs.

FBrf0208906-3.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dcr-2

bait

FLAG tag

loqs 

Loqs

prey
loqs 
loqs 
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.

Dcr-2 and Dcr-1 preferentially interact with different isoforms of loqs.

FBrf0209063-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

Myc tag

loqs 

Dcr-2

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

Dcr-2 and Dcr-1 preferentially interact with different loqs isoforms.

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

FBrf0210024-2.coIP.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

Dicer2

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.

FBrf0210024-4.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

Dcr2

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.

FBrf0210024-6.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

Myc tag

loqs 

Dcr2

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.

FBrf0210024-7.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

FLAG tag

loqs 
loqs 

Dcr2

prey
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
loqs 
C-terminal region
sufficient binding region
aa 205-359

coordinates relative to \'PD\' isoform

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.

FBrf0210024-9.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dicer2

bait

FLAG tag

loqs 

Loqs

prey

GST tag

loqs 
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; bait purified from S2 cell extract; prey produced as a recombinant fusion protein in bacterial system.

FBrf0213645-1.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

loqs

bait

GFP tag

loqs 

Dcr-2

prey

FLAG tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
loqs 
C-terminal domain
sufficient binding region
aa 338-359

coordinates relative to loqs-PD

helicase domain
necessary binding region
aa 1-553

coordinates relative to Dcr-2-PA

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 or transfected construct.

The C-terminal fragment of loqs-PD consisting of aa 338-359 can interact with Dcr-2 but does so at a much lesser extent than full-length loqs-PD. An interaction between the C-terminal fragment of isoform loqs-PC and Dcr-2 was not detected.

FBrf0213645-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dcr-2

bait

FLAG tag

loqs 

loqs

prey

Myc tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
helicase domain
necessary binding region
aa 1-553

coordinates relative to Dcr-2-PA

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.

Isoform loqs-PD was used in this experiment.

FBrf0234578-1.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

PD

bait

FLAG tag

dDcr2

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 human NoDice/ΔPKR cell line; bait produced from transfected construct; prey produced from transfected construct.

FBrf0236761-1.PD.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

His tag

loqs 
loqs 
loqs 

Dcr-2

prey
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
loqs 
interaction domain
necessary binding region
aa 338-359

coordinates relative to loqs-PD

loqs 
C-terminal domain
sufficient binding region
aa 136-359

coordinates relative to loqs-PD

loqs 
C-terminal domain residues 534,356
mutation disrupting interaction
aa 534,356

F534A,F356A, coordinates relative to loqs-PD

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 a baculovirus and Sf9 cell system.

A peptide consisting of the C-terminal 22 aa of loqs-PD competes with full length loqs-PD for binding to Dcr-2.

FBrf0236761-2.CL.MW.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

His tag

loqs 
loqs 

Dcr-2

prey
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
loqs 
interaction domain
necessary binding region
aa 338-359

coordinates relative to loqs-PD

loqs 
C-terminal domain
sufficient binding region
aa 136-359

coordinates relative to loqs-PD

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 a baculovirus and Sf9 cell system.

A single cross-link was identified between K358 of loqs-PD and K501 of Dcr-2.

FBrf0237457-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dcr-2

bait

FLAG tag

loqs 

Loqs

prey

Myc tag

loqs 
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 with genomically integrated tag; prey produced from transfected construct.

FBrf0238890-1.CH.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

dmDcr-2

neutral component

dmDcr-2

neutral component

dmDcr-2

neutral component
loqs 

Loqs-PD

neutral component
loqs 

Loqs-PD

neutral component
loqs 

Loqs-PD

neutral component
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; proteins produced as a recombinant fusion proteins in baculovirus and Sf9 cell system.

FBrf0254003-1.EM
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Dicer-2

neutral component

Dicer-2

neutral component

Dicer-2

neutral component
loqs 

Loqs

neutral component

His-SUMO tag

loqs 

Loqs

neutral component

His-SUMO tag

loqs 

Loqs

neutral component

His-SUMO tag

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; proteins produced as a recombinant fusion proteins in baculovirus or bacterial system.

The structure of Dcr-2 and loqs in different dsRNA binding states captured by cryo-EM.

FBrf0254003-2.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
loqs 

Loqs

bait

His tag

loqs 
loqs 
loqs 

Dicer-2

prey
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
loqs 
hydrophobic residue 347
mutation decreasing interaction
aa 347

Y347A

loqs 
hydrophobic residue 356
mutation decreasing interaction
aa 356

F356D

loqs 
hydrophobic residue 359
mutation decreasing interaction
aa 359

I359D

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 a baculovirus system.

FBrf0257352-1.CH.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

DmDcr-2

neutral component

DmDcr-2

neutral component

DmDcr-2

neutral component
loqs 

Loqs-PD

neutral component
loqs 

Loqs-PD

neutral component
loqs 

Loqs-PD

neutral component
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

Ternary complex consisting of Dcr-2, loqs and r2d2 curated as a series of binary protein-protein interactions.

Interaction in vitro; Dcr-2 produced as a recombinant fusion protein in a baculovirus and insect cell system; loqs produced as a recombinant fusion protein in a bacterial system.

FBrf0257352-12.CL.CH
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

DmDcr-2

neutral component

DmDcr-2

neutral component

DmDcr-2

neutral component
loqs 

Loqs-PD

neutral component
loqs 

Loqs-PD

neutral component
loqs 

Loqs-PD

neutral component
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

Higher order complexes consisting of multiple Dcr-2 and r2d2 proteins, in addition to loqs bound to siRNA, curated as a series of binary protein-protein interactions.

Interaction in vitro; Dcr-2 produced as a recombinant fusion protein in a baculovirus and insect cell system; loqs produced as a recombinant fusion protein in a bacterial system.

FBrf0257352-4.EM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

DmDcr-2

neutral component

DmDcr-2

neutral component

DmDcr-2

neutral component
loqs 

Loqs-PD

neutral component

His tag

loqs 

Loqs-PD

neutral component

His tag

loqs 

Loqs-PD

neutral component

His tag

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

Higher order complexes consisting of multiple Dcr-2 and r2d2 proteins, in addition to loqs bound to dsRNA, curated as a series of binary protein-protein interactions.

Interaction in vitro; proteins produced as recombinant fusion protein in a baculovirus and insect cell system; loqs produced as a recombinant fusion protein in a bacterial system.

FBrf0257352-9.CL.EM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

DmDcr-2

neutral component

DmDcr-2

neutral component

DmDcr-2

neutral component
loqs 

Loqs-PD

neutral component
loqs 

Loqs-PD

neutral component
loqs 

Loqs-PD

neutral component
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

Higher order complexes consisting of multiple Dcr-2 and r2d2 proteins, in addition to loqs bound to siRNA, curated as a series of binary protein-protein interactions.

Interaction in vitro; Dcr-2 produced as a recombinant fusion protein in a baculovirus and insect cell system; loqs produced as a recombinant fusion protein in a bacterial system.

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (11)