Function
Collagen-like protein specifically expressed in the inner ear, which provides an organic scaffold for otoconia, a calcium carbonate structure in the saccule and utricle of the ear (PubMed:21655225, PubMed:24748133, PubMed:29076638). Acts as a scaffold for biomineralization: sequesters calcium and forms interconnecting fibrils between otoconia that are incorporated into the calcium crystal structure (PubMed:21655225, PubMed:24748133, PubMed:29076638). Together with OC90, modulates calcite crystal morphology and growth kinetics (PubMed:24748133).
Sequence
MWIFSSLCAVLTILAMDDVATEAKTTPYTKFTKKSEGKEMLKGLKPSSGFFLDGEETVHTETAAMAEPTTGSPALAMAESTAGPSASATTRLLPFESFSLDTTGFVLNCCHCCSFVTGQKGEPGKMGKQGPKGETGDTGSPGHPGTTGPQGPKGQKGEKGLKGDRGDQGAGGIPGYPGKPGEQGALGPKGDKGTIGPAGTKGQKGSKGELCGNGTKGEKGDPGASGAHGFIGEPGAKGEKGGVGEKGYRGDLGERGEKGQKGEKGMEGEKGSRGDVGSEGKRGSDGLPGLRGDSGPKGEKGEIGSPGFTGPAGPKGELGSKGVRGPTGKKGSRGVKGSKGEATQVPQSAFSALLSKPFPPPNVPIKFDKILSNDQGDYSPVTGKFNCSVPGTYIFSYHVTVRGRPARISLVARNRKQFKSRETLYGQQVDQASLLLILKLSAGDQVWLEVSKDWNGLYVGPEDDSIFSGFLLYPEETFSKSP