Table 1. Mass spectrometric analysis of VLRB N8 immunoprecipitates.

Displayed are identified proteins that remain following elimination of sequences associated with intracellular molecules and with VLR4 negative control coimmunoprecipitates. M_w, molecular weight.

Rank	Identified proteins	Accession no.	Mw (kDa)
1	HLA class I histocompatibility antigen, A-24 α chain	1A24_HUMAN	41
2	HLA class I histocompatibility antigen, B-55 α chain	1B55_HUMAN	40
3	Galectin-1	LEG1_HUMAN	15
4	Transferrin receptor protein 1	TFR1_HUMAN	85
5	Protein S100-A9	S10A9_HUMAN	13
6	4F2 cell surface antigen heavy chain	B4E2Z3_HUMAN	56
7	Ubiquitin	B4DV12_HUMAN	17
8	HLA class II histocompatibility antigen, DRB1-16 β chain	2B1G_HUMAN	30
9	HLA class I histocompatibility antigen, Cw-14 α chain	1C14_HUMAN	41
10	β2-microglobulin	B2MG_HUMAN	14
11	HLA class I histocompatibility antigen, B-51 α chain	1B51_HUMAN	41
12	HLA class II histocompatibility antigen, DR α chain	DRA_HUMAN	29