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
FBig0000108571
Interaction Network
Interactions Browser links
Klp61F network
Reported Interactions
FBrf0194476-1.CS
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

KLP61F

neutral component

KLP61F

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

Klp61F sediments as a homotetramer.

Source was embryos of wild-type fly line; protein produced from endogenous gene.

FBrf0194476-3.CS
Reference
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

KLP61F

neutral component

KLP61F

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; protein produced as a recombinant fusion protein in baculovirus and insect cell system.

Klp61F sediments as a homotetramer.

FBrf0221868-1.EM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

kinesin-5

self

His tag

kinesin-5

self

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
BASS domain
sufficient binding region
aa 631-920

coordinates relative to Klp61F-PA

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

Interaction in vitro; protein produced as a recombinant fusion protein in baculovirus-infected Sf9 cell system.

The Klp61F BASS domain forms a bipolar homotetramer assembly, as determined by immunolabeling of tagged N- and/or C-termini and electron microscopy.

FBrf0221868-2.CS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

kinesin-5

self

His tag

kinesin-5

self

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
BASS domain
sufficient binding region
aa 631-920

coordinates relative to Klp61F-PA

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

Interaction in vitro; protein produced as a recombinant fusion protein in baculovirus-infected Sf9 cell system.

The Klp61F BASS domain (35 kDa) forms a tetrameric complex (estimated 149 kDa), as determined by analytical ultracentrifugation.

FBrf0221868-3.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

kinesin-5

self

His tag

kinesin-5

self

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
BASS domain
sufficient binding region
aa 631-920

coordinates relative to Klp61F-PA

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

Interaction in vitro; protein produced as a recombinant fusion protein in baculovirus-infected Sf9 cell system.

The Klp61F BASS domain (35 kDa) exists primarily as a tetramer (estimated at 138 kDa), as determined by mass spectrometry.

FBrf0221868-4.CS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

kinesin-5

self

His tag

kinesin-5

self

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
BASS domain
sufficient binding region
aa 631-920

coordinates relative to Klp61F-PA

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

Interaction in vitro; protein produced as a recombinant fusion protein in baculovirus-infected Sf9 cell system.

The Klp61F BASS domain (35 kDa) exists primarily as a tetramer (estimated 136 kDa size), as determined by native PAGE.

FBrf0257620-1.CH
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Klp61F

self

Klp61F

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

Klp61F motor domain fused to the BASS-XL domain, with or without the tail domain, forms a tetramer.

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

FBrf0257620-1.CH.XC
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note

Klp61F

self

Klp61F

self
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
BASS-XL domain
sufficient binding region
aa 610-804

coordinates relative to AA-PA

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

Klp61F BASS-XL domain forms dimeric coiled-coils.

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

External Crossreferences and Linkouts ( 0 )
References (3)