Protein profile of the myelin membrane of the fruit bat Rousettus aegyptiacus.

Integral membrane protein composition of the myelin membrane from normal and vitamin B12-deficient fruit bats has been compared with that of the rat. Purified myelin from the fruit bat shows only one basic protein which co-migrates with the large basic protein of the rat, and thus presents a pattern similar to that of the guinea pig. No gross differences were seen in the protein patterns from normal and vitamin B12-deficient animals. Bats between 4-10 days and 10-20 days post partum were also investigated.