I have a question regarding sequence gi number.
If I have 2 versions of blast database say OldDatabaseVersion and NewDatabaseVersion. The NewDatabaseVersion may have new sequences added, some sequences removed, or some sequences modified.
If the sequence is removed from OldDatabaseVersio, Is its gi number will be used for another sequence? If the sequence is modified, Is its gi number in the OldDatabaseVersion will be the same as its gi number in the NewDatabaseVersion or another gi number will be assigned to it in the NewDatabaseVersion?