FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000095668
Interaction Network
Interactions Browser links
Smn network
Reported Interactions
FBrf0132317-1.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Smn 

Smn

bait

fused to GAL4 DNA-binding domain

Smn 

Smn

prey

fused to GAL4 activation domain

Smn 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Smn 
C-terminal domain
sufficient binding region
aa 159-226

coordinates relative to Smn-PA

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 was previously cloned reagent).

Two-hybrid system: yeast GAL4-BD/VP16-AD

FBrf0160443-1.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Smn 

smn

bait

fused to GAL4 DNA-binding domain

Smn 

smn

prey

fused to GAL4 DNA-activation domain

Smn 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Smn 
YxxG domain
mutation disrupting interaction
aa 202

G202S

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 was previously cloned reagent).

Mutant Smn shows reduced binding to wild type Smn as compared to binding of wild type Smn to wild type Smn.

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

This experiment used wild type Smn as bait and both wild type and mutant Smn as prey.

FBrf0218971-1.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Smn 

dSMS

bait

FLAG tag

Smn 

dSMS

prey

Myc tag

Smn 
Smn 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Smn 
region
mutation disrupting interaction
aa 203

Y203C

Smn 
region
mutation decreasing interaction
aa 205aa 206

T205I

G206S

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

Bait expressed in transfected cells.

Prey expressed in transfected cells.

D20V and F70S mutations do not affect Smn self-oligomerization.

FBrf0226016-1.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Smn 

dSMN

bait

FLAG tag

Smn 

dSMN

prey

Myc tag

Smn 
Smn 
Smn 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
Smn 
YG box self-oligomerization domain residue 194
mutation disrupting interaction
aa 194

M194R

Smn 
YG box self-oligomerization domain residue 203
mutation disrupting interaction
aa 203

Y203C

Smn 
YG box self-oligomerization domain residue 206
mutation disrupting interaction
aa 206

G206S

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.

FBrf0235788-1133.Y2H
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Smn 

Smn-RA

bait

fused to GAL4 DNA-binding domain

Smn 

Smn-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

FBrf0235788-1133.Y2Hpool
Description
physical association
Assay
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Smn 

Smn-RA

bait

fused to GAL4 DNA-binding domain

Smn 

Smn-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

FBrf0249760-3.CS.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
Smn 

dmSMN

neutral component
Smn 

dmSMN

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

Smn found to be oligomeric.

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

External Crossreferences and Linkouts ( 0 )
References (6)