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

Cross-Linking Mass Spectrometry Uncovers Interactions Between High-Density Lipoproteins and the SARS-CoV-2 Spike Glycoprotein.

Burnap SA, Ortega-Prieto AM, Jimenez-Guardeno JM, Ali H, Takov K, Fish M, Shankar-Hari M, Giacca M, Malim MH, Mayr M

High-density lipoprotein (HDL) levels are reduced in patients with coronavirus disease 2019 (COVID-19), and the extent of this reduction is associated with poor clinical outcomes. While lipoproteins are known to play a key role during the life cycle of the hepatitis C virus, their influence on coronavirus (CoV) infections is poorly understood. In this study, we utilize cross-linking mass spectrometry ... [more]

Mol Cell Proteomics Aug. 01, 2023; 22(8);100600 [Pubmed: 37343697]

Throughput

  • High Throughput

Additional Notes

  • XL-MS protein interactions identified in plasma isolated from patients in intensive care with confirmed COVID-19 (Table S1).

Curated By

  • BioGRID