This the model used in the article:
Quantitative analysis of pathways controlling extrinsic apoptosis in single cells.
Albeck JG, Burke JM, Aldridge BB, Zhang M, Lauffenburger DA, Sorger PK. Mol Cell.
2008 Apr 11;30(1):11-25.
PMID...
Recombinant proteins were mixed and then crosslinked either with DMTMM or by SDA and UV exposure. Complexes were resolved by SDS-PAGE, excised and tryptic peptides identified by MS.