BAIT

SH3RF1

POSH, RNF142, SH3MD2
SH3 domain containing ring finger 1
GO Process (3)
GO Function (1)
GO Component (1)
Homo sapiens

Biochemical Activity (Ubiquitination)

An interaction is inferred from the biochemical effect of one protein upon another, for example, GTP-GDP exchange activity or phosphorylation of a substrate by a kinase. The bait protein executes the activity on the substrate hit protein. A Modification value is recorded for interactions of this type with the possible values Phosphorylation, Ubiquitination, Sumoylation, Dephosphorylation, Methylation, Prenylation, Acetylation, Deubiquitination, Proteolytic Processing, Glucosylation, Nedd(Rub1)ylation, Deacetylation, No Modification, Demethylation.

Publication

Exploring the functional interaction between POSH and ALIX and the relevance to HIV-1 release.

Votteler J, Iavnilovitch E, Fingrut O, Shemesh V, Taglicht D, Erez O, Soergel S, Walther T, Bannert N, Schubert U, Reiss Y

The ALG2-interacting protein X (ALIX)/AIP1 is an adaptor protein with multiple functions in intracellular protein trafficking that plays a central role in the biogenesis of enveloped viruses. The ubiquitin E3-ligase POSH (plenty of SH3) augments HIV-1 egress by facilitating the transport of Gag to the cell membrane. Recently, it was reported, that POSH interacts with ALIX and thereby enhances ALIX ... [more]

BMC Biochem. Apr. 28, 2009; 10(0);12 [Pubmed: 19393081]

Throughput

  • Low Throughput

Additional Notes

  • Posh ubiquitinates Alix in vitro in the presence of Ubc13 or UbcH5c

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
PDCD6IP SH3RF1
Affinity Capture-Western
Affinity Capture-Western

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins.

Low-BioGRID
-
PDCD6IP SH3RF1
Reconstituted Complex
Reconstituted Complex

An interaction is detected between purified proteins in vitro.

Low-BioGRID
-

Curated By

  • BioGRID