Reconstituted Complex

An interaction is inferred between proteins in vitro. This can include proteins in recombinant form or proteins isolated directly from cells with recombinant or purified bait. For example, GST pull-down assays where a GST-tagged protein is first isolated and then used to fish interactors from cell lysates are considered reconstituted complexes (e.g. PUBMED: 14657240, Fig. 4A or PUBMED: 14761940, Fig. 5). This can also include gel-shifts, surface plasmon resonance, isothermal titration calorimetry (ITC) and bio-layer interferometry (BLI) experiments. The bait-hit directionality may not be clear for 2 interacting proteins. In these cases the directionality is up to the discretion of the curator.

Publication

Enhancement of BRCA1 E3 ubiquitin ligase activity through direct interaction with the BARD1 protein.

Xia Y, Pao GM, Chen HW, Verma IM, Hunter T

The breast and ovarian cancer-specific tumor suppressor RING finger protein BRCA1 has been identified as an E3 ubiquitin (Ub) ligase through in vitro studies, which demonstrated that its RING finger domain can autoubiquitylate and monoubiquitylate histone H2A when supplied with Ub, E1, and UBC4 (E2). Here we report that the E3 ligase activity of the N-terminal 110 amino acid residues ... [more]

J. Biol. Chem. Feb. 14, 2003; 278(7);5255-63 [Pubmed: 12431996]

Throughput

  • Low Throughput

Additional Notes

  • Ubiquitination enhanced by the BARD1 protein (residues 8-142); mostly resulted in poly-Ub chains linked through Lys(63)

Curated By

  • BioGRID