FB2026_03 , released September 17, 2026
Physical Interaction report
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General Information
Interaction Type
Interacting Genes
FlyBase ID
FBig0000097597
Interaction Network
Interactions Browser links
hh network
Reported Interactions
FBrf0190290-1.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
hh 

HhNp

bait

HA tag

hh 

HhNp

prey
hh 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
hh 
N-terminal region
sufficient binding region
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.

Cholesterol modification of hh is required for its homodimerization.

FBrf0238340-1.CH.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
hh 

Hh

neutral component
hh 

Hh

neutral component
hh 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
hh 
interaction domain
necessary binding region
aa 258-471
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Wild-type and the C85S, non-palmitoylated, form of hh formed multimers, while a truncated version consisting of aa 1-257 did not.

Source was larvae of transgenic fly line; protein produced from transgenic construct.

FBrf0238340-2.CH.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
hh 

Hh

neutral component
hh 

Hh

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

The C85S, non-palmitoylated, form of hh formed multimers.

Source was medium of S2 cells; protein produced from transfected construct.

FBrf0247909-1.CH.MW
Description
physical association
Collection
Cell line used
Participants
Corresponds to
Reported as
Role
Note
hh 

hh

neutral component
hh 

hh

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

C-terminal tags impair hh multimerization.

Source was larvae of transgenic fly line; protein produced from transgenic construct.

External Crossreferences and Linkouts ( 0 )
References (3)