Rabbit AK1 is quite similar to human AK1, but it is not identical. About 5% of the structure differs between the two species. I cannot exclude the possibility that rabbit or some other animal AK1 could be mistaken for one of the human AK1 types using starch gel electrophoresis, but I think this is extremely unlikely. It should also be noted that the blood flake gave a positive result in a test for human proteins and other enzyme typing tests gave typically human results.
