How can I track the history of a deleted or secondary IPI identifier?
For each species, an IPI history file is released. This file details the releases for which each IPI ID was a valid primary identifier; in the case of entries that have become secondary, it also details the primary identifier to which they have become secondary; for entries that have been deleted, the reason for deletion is given. The IPI history files can be searched dynamically via the Quick Search box on the IPI homepage, or via the EBI SRS server. To use the SRS server, click on the “Library page” tab and select “IPI history” under “Other protein sequence databases.” You can search against “IPI” and “IPI history” simultaneously if you do not know if your ID of interest is included in the current release.
