FB2026_03 , released September 17, 2026
Physical Interaction report
Open Close
General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000099486
Interaction Network
Interactions Browser links
Sec15 network
Rab11 network
Reported Interactions
FBrf0190210-1.PD.A
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Rab11

bait

GST tag

Sec15

prey

[35]S label

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

Rab11 was loaded with GTPγS (non-hydrolyzable) or GDP.

sec15 preferentially binds the GTP-bound form of Rab11.

Interaction in vitro; bait produced as a recombinant fusion protein in bacterial system; prey produced and labeled by in vitro translation.

FBrf0190210-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Rab11

bait

Sec15

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.

FBrf0191297-1.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Sec15

bait

GST tag

Rab11

prey
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 382-699

coordinates relative to Sec15-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 as a recombinant fusion protein in bacterial system.

Rab11 was pre-loaded with GTPγS-Mg2+

FBrf0191297-2.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Sec15

bait

Rab11

prey

GST tag

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 382-699

coordinates relative to Sec15-PA

GTP-locked conformation
sufficient binding region
aa 1-200

Q70L, coordinates relative to Rab11-PA

GDP-restricted conformation
mutation decreasing interaction
aa 25

S25N, coordinates relative to Rab11-PA

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

Rab11 locked in the GTP bound conformation was pre-loaded with GTPγS-Mg2+; GDP-restricted Rab11 was pre-loaded with GDP-Mg2+; Nucleotide free Rab11 was pre-loaded with EDTA which caused a disruption in the interaction.

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

FBrf0191297-6.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Sec15

bait

INTEIN-CBD tag

Rab11

prey

GST tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
GTP-locked conformation
sufficient binding region
aa 1-200

Q70L, coordinates relative to Rab11-PA

C-subdomain residue
sufficient binding region
aa 565-764

coordinates relative to Rab11-PA

C-subdomain residue 659
mutation disrupting interaction
aa 659

N659A, coordinates relative to Sec15-PA

C-subdomain residue 663
mutation disrupting interaction
aa 663

M663A, coordinates relative to Sec15-PA

C-subdomain residue 667
mutation disrupting interaction
aa 667

F667A, coordinates relative to Sec15-PA

C-subdomain residue 664
mutation decreasing interaction
aa 664aa 664

Q664A, coordinates relative to Sec15-PA

Q664E, coordinates relative to Sec15-PA

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

Rab11 locked in the GTP bound conformation was pre-loaded with GTPγS-Mg2+.

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

FBrf0191297-7.PD.WB
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Sec15

bait

His tag

Rab11

prey

GST tag

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 382-699

coordinates relative to Sec15-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 as a recombinant fusion protein in bacterial system.

Rab11 locked in the GTP bound conformation was pre-loaded with GTPγ.

FBrf0251565-6.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Rab11

bait

GST tag

Sec15

prey

HA 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; bait produced as a recombinant fusion protein in bacterial system; prey derived from transfected construct.

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (3)