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Comparative Study
. 1991;98(2-3):287-95.
doi: 10.1016/0305-0491(91)90181-c.

Each otoconia polymorph has a protein unique to that polymorph

K G Pote  1 , M D Ross
Affiliations
Comparative Study

Each otoconia polymorph has a protein unique to that polymorph

K G Pote et al. Comp Biochem Physiol B. 1991.

Abstract

1. Otoconia, contained within the vestibular portion of the inner ear, are mineralized by one of three polymorphs of calcium carbonate. Each otoconial polymorph contains a unique, major protein. 2. The major protein of calcitic otoconia of members of different vertebrate classes, Amphibia (African clawed frog) and Mammalia (rat), have similar molecular weights. 3. The major protein of calcitic rat otoconia and of vateritic otoconia of the gar may be calcium binding proteins. No protein from the other polymorph, aragonite, appear to have this characteristic.

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