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.

Publication

Sumoylation regulates nuclear localization of repressor DREAM.

Palczewska M, Casafont I, Ghimire K, Rojas AM, Valencia A, Lafarga M, Mellstroem B, Naranjo JR

DREAM is a Ca(2+)-binding protein with specific functions in different cell compartments. In the nucleus, DREAM acts as a transcriptional repressor, although the mechanism that controls its nuclear localization is unknown. Yeast two-hybrid assay revealed the interaction between DREAM and the SUMO-conjugating enzyme Ubc9 and bioinformatic analysis identified four sumoylation-susceptible sites in the DREAM sequence. Single K-to-R mutations at positions ... [more]

Biochim. Biophys. Acta May. 01, 2011; 1813(5);1050-8 [Pubmed: 21070824]

Throughput

  • Low Throughput

Additional Notes

  • likely SUMO conjugate

Curated By

  • BioGRID