Supplementary Figure 4: PUP-ITCD28 identified a large number of proteins involved in protein transport.
From: A proximity-tagging system to identify membrane protein–protein interactions

(a) Venn diagram shows the overlapping proteins identified by different PUP-IT. Proteins identified with more than 2 unique peptides are considered in this plot. (b) 51 unique CD28 tail-binding proteins and c) 202 potential CD28 interacting candidates (Supplementary Table 2) are analyzed with gene ontology, using STRING. Top ten functional enrichment groups are presented.