| Type | subunit | Description | Homodimer (PubMed:7891706). Interacts with RAN (PubMed:7891706). Forms a complex with RANBP2/NUP358, NXF1 and NXT1 (By similarity). Forms a tight complex in association with RANBP2 and UBE2I/UBC9, the ubiquitin-conjugating enzyme E2 (PubMed:11853669). Interacts with UBE2I; the interaction conjugates SUMO1 to RANGAP1, and subsequently stabilizes interactions of sumoylated RANGAP1 with RANBP2 (PubMed:9456312, PubMed:18305100, PubMed:11853669). The complex composed of RANBP2, SUMO1, RANGAP1 and UBE2I associates with nuclear pore complexes (By similarity). Identified in a complex composed of RAN, RANBP2, sumoylated RANGAP1, UBE2I and XPO1 (By similarity). Interacts with TRAF6 (By similarity). Interacts with SUMO1 and SENP1 (By similarity). Interacts (when sumoylated) with MYCBP2; interaction inhibits MYCBP2 E3 ubiquitin-protein ligase activity and promotes MYCBP2 translocation to the nucleus (PubMed:26304119). |
