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
FBig0000094800
Interaction Network
Interactions Browser links
vkg network
Col4a1 network
Reported Interactions
FBrf0218395-4063.DPiM
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
unspecified role
unspecified role
unspecified role
vkg 
unspecified role
vkg 
unspecified role
vkg 
unspecified role
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

HGScore = 708.39642

FBrf0258385-1.CH.MW.MS
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
vkg 

vkg

neutral component
vkg 
vkg 

vkg

neutral component
vkg 
vkg 

vkg

neutral component

Col4a1

neutral component

Col4a1

neutral component

Col4a1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
vkg 
NC1 domain
sufficient binding region
unspecified
NC1 domain
sufficient binding region
unspecified
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

vkg and Col4a1 NC1 domains form a hexamer; multiple peptides identified after digestion by mass spectrometry from the NC1 domains of both vkg and Col4a1.

Source was extracts from DGRC Fly Pellet, stock 1661280.

FBrf0258385-2.PD.CH
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
vkg 

vkg

neutral component

His tag

vkg 
vkg 

vkg

neutral component

His tag

vkg 
vkg 

vkg

neutral component

His tag

Col4a1

neutral component

FLAG tag

Col4a1

neutral component

FLAG tag

Col4a1

neutral component

FLAG tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
vkg 
NC1 domain
sufficient binding region
aa 1502-1779
NC1 and tail domains
sufficient binding region
aa 1540-1779
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

vkg and Col4a1 NC1 expressed monomers form a trimer.

Interaction in vitro; proteins produced as recombinant fusion proteins in expiCHO-S system.

FBrf0258385-3.PD.CH
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
vkg 

vkg

neutral component

FLAG tag

vkg 
vkg 

vkg

neutral component

FLAG tag

vkg 
vkg 

vkg

neutral component

FLAG tag

Col4a1

neutral component

His tag

Col4a1

neutral component

His tag

Col4a1

neutral component

His tag

Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
vkg 
NC1 domain
sufficient binding region
aa 1502-1779
NC1 and tail domains
sufficient binding region
aa 1540-1779
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

vkg and Col4a1 NC1 expressed monomers form a trimer.

Interaction in vitro; proteins produced as recombinant fusion proteins in expiCHO-S system.

FBrf0258385-6.PD.CH.MW
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
vkg 

vkg

self

FLAG tag

vkg 

vkg

self

FLAG tag

vkg 
vkg 

vkg

self

FLAG tag

vkg 

Col4a1

neutral component

Col4a1

neutral component

Col4a1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
vkg 
NC1 CVC single chain trimer
sufficient binding region
aa 1510-1739
NC1 CVC single chain trimer
sufficient binding region
aa 1550-1779
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; proteins produced as recombinant fusion proteins in expiCHO-S system.

CVC contains 1 vkg single chain monomer and 2 Col4a1 single chain monomers assembled into a single DNA construct with 7 aa linkers. vkg-Col4a1 formed a hexamer. Protein concentration, time, temperature, and divalent cation concentration accelerate the assembly of the hexamer.

FBrf0258385-7.XC
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
vkg 

vkg

neutral component
vkg 
vkg 

vkg

neutral component
vkg 
vkg 

vkg

neutral component

Col4a1

neutral component

Col4a1

neutral component

Col4a1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
vkg 
NC1 domain
sufficient binding region
unspecified
NC1 domain
sufficient binding region
unspecified
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Tissue extracted vkg and Col4a1 NC1 domains form a hexamer.

Source was extracts from DGRC Fly Pellet, stock 1661280.

FBrf0258385-8.XC
Description
physical association
Collection
Source/Stage
Cell line used
Participants
Corresponds to
Reported as
Role
Note
vkg 

vkg

self

FLAG

vkg 

vkg

self

FLAG

vkg 
vkg 

vkg

self

FLAG

vkg 

Col4a1

neutral component

Col4a1

neutral component

Col4a1

neutral component
Experimental entities
Corresponds to
Identifier
Reported
Role
Note
Subregions with role in interaction
Corresponds to
Description
Role
Coordinates
Note
vkg 
NC1 CVC single chain trimer
sufficient binding region
aa 1510-1739
NC1 CVC single chain trimer
sufficient binding region
aa 1550-1779
Isoform-specific participants
Corresponds to
Description
Role
Note
Comments concerning this interaction

Interaction in vitro; proteins produced as recombinant fusion proteins in expiCHO-S system.

CVC contains 1 vkg single chain monomer and 2 Col4a1 single chain monomers assembled into a single DNA construct with 7 aa linkers. vkg-Col4a1 formed a hexamer.

External Crossreferences and Linkouts ( 1 )
Linkouts
MIST - An integrated Molecular Interaction Database
References (2)