Cross-Linking-MS (XL-MS)

An interaction is detected between two proteins using chemically reactive or photo-activatable cross-linking reagents that covalently link amino acids in close proximity, followed by mass spectrometry analysis to identify the linked peptides (reviewed in PMID 37406423, 37104977). Experiments may be carried with live cells or cell lysates in which all proteins are expressed at endogenous levels (e.g. PMID 34349018, 35235311) or with recombinant proteins (e.g., PMID 28537071).

Publication

A new in vivo cross-linking mass spectrometry platform to define protein-protein interactions in living cells.

Kaake RM, Wang X, Burke A, Yu C, Kandur W, Yang Y, Novtisky EJ, Second T, Duan J, Kao A, Guan S, Vellucci D, Rychnovsky SD, Huang L

Protein-protein interactions (PPIs) are fundamental to the structure and function of protein complexes. Resolving the physical contacts between proteins as they occur in cells is critical to uncovering the molecular details underlying various cellular activities. To advance the study of PPIs in living cells, we have developed a new in vivo cross-linking mass spectrometry platform that couples a novel membrane-permeable, ... [more]

Mol Cell Proteomics Dec. 01, 2014; 13(12);3533-43 [Pubmed: 25253489]

Throughput

  • High Throughput

Additional Notes

  • In Vivo Azide-A-DSBSO Cross-linking of HEK 293 Cells

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
RPL27 RPL27
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-4.0652BioGRID
2458704

Curated By

  • BioGRID