This is the current list of permissions and what they allow:

Permission	Type	Function
manage_options	Administration	Add and update the database application options
view_activity	Administration	View the activity log
manage_groups	Administration	Add, remove, and update UserGroups
manage_perms	Administration	Add, remove, and update Permissions
manage_persons	Administration	View full Person list
uportal_sync	Administration	Sync proposals from a User Portal
all_proposals	Administration	View all proposals