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
FBig0000105512
Interaction Network
Interactions Browser links
piwi network
His1 network
Reported Interactions
FBrf0233069-1.coIP.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
piwi 

Piwi

bait
His1 

H1

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 nuclear extract of OSC cell line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0233069-2.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
piwi 

Piwi

bait
His1 

H1

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 nuclear extract of OSC cell line; bait produced from endogenous gene; prey produced from endogenous gene.

piwi immunoprecipitates His1 but not His3, His2A or Su(var)205. This interaction is RNA- and DNA-independent.

FBrf0233069-3.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
His1 

H1

bait
piwi 

Piwi

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 nuclear extract of OSC cell line; bait produced from endogenous gene; prey produced from endogenous gene.

His1 immunoprecipitates piwi but not mael or arx. This interaction is RNA- and DNA-independent.

FBrf0233069-4.coIP.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
piwi 

Piwi

bait
His1 

H1

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 adult female ovaries of wild-type fly line; bait produced from endogenous gene; prey produced from endogenous gene.

FBrf0233069-5.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
His1 

H1

bait

GST tag

His1 
His1 
piwi 

Piwi

prey
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
His1 
C-terminal region
sufficient binding region
aa 40-256

"ΔN" construct

His1 
C-terminal region
necessary binding region
aa 131-256

"ΔC" construct

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 OSC cell extract.

FBrf0233069-6.PD.WB
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
His1 

H1

bait

GST tag

piwi 

Piwi

prey

Myc tag

piwi 
piwi 
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
piwi 
N-terminal region
sufficient binding region
aa 1-260

"ΔPIWI-MID-PAZ" construct

piwi 
putative NLS
necessary binding region
aa 1-130

"ΔN2" construct

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 by in vitro translation.

External Crossreferences and Linkouts ( 0 )
References (1)