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RanGAP1 C-terminal domain Ran-GTPase activating protein 1 (RanGAP1) is a GTPase activator for the nuclear Ras-related regulatory protein Ran, converting it to the putatively inactive GDP-bound state. Its C-terminal domain is required for RanGAP1 localization at the vertebrate nuclear pore complex, and is sumoylated by the small ubiquitin-related modifier protein (SUMO-1). This domain is composed almost entirely of helical substructures that are organized into an alpha-alpha superhelix fold, with the exception of the peptide containing the lysine residue required for SUMO-1 conjugation. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",