PCA

A Protein-Fragment Complementation Assay (PCA) is a protein-protein interaction assay in which a bait protein is expressed as fusion to one of the either N- or C- terminal peptide fragments of a reporter protein and prey protein is expressed as fusion to the complementary N- or C- terminal fragment of the same reporter protein. Interaction of bait and prey proteins bring together complementary fragments, which can then fold into an active reporter, e.g. the split-ubiquitin assay.

Publication

Proteome-scale Binary Interactomics in Human Cells.

Lievens S, Van der Heyden J, Masschaele D, De Ceuninck L, Petta I, Gupta S, De Puysseleyr V, Vauthier V, Lemmens I, De Clercq DJ, Defever D, Vanderroost N, De Smet AS, Eyckerman S, Van Calenbergh S, Martens L, De Bosscher K, Libert C, Hill DE, Vidal M, Tavernier J

Because proteins are the main mediators of most cellular processes they are also prime therapeutic targets. Identifying physical links among proteins and between drugs and their protein targets is essential in order to understand the mechanisms through which both proteins themselves and the molecules they are targeted with act. Thus, there is a strong need for sensitive methods that enable ... [more]

Mol. Cell Proteomics Dec. 01, 2016; 15(12);3624-3639 [Pubmed: 27803151]

Throughput

  • High Throughput

Additional Notes

  • Interaction with Glucocorticoid Receptor (GR) was downregulated in the presence of dexamethasone.
  • MAPPIT (Mammalian Protein-Protein Interaction Trap)

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
NR3C1 HSP90AB1
Affinity Capture-MS
Affinity Capture-MS

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 is identified by mass spectrometric methods.

Low-BioGRID
-

Curated By

  • BioGRID