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Arch Oral Biol. 1991;36(7):529-34.

Multiple forms of statherin in human salivary secretions.

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Department of Periodontology and Oral Biology, Boston University School of Graduate Dentistry, MA.


Sequential chromatography of hydroxyapatite-adsorbed salivary proteins from submandibular/sublingual secretions on Sephadex G-50 and reversed-phase HPLC resulted in the purification of statherin and several statherin variants. Amino acid analysis, Edman degradation and carboxypeptidase digestion of the obtained protein fractions led to the determination of the complete primary structures of statherin SV1, statherin SV2, and statherin SV3. SV1 is identical to statherin but lacks the carboxyl-terminal phenylalanine residue. SV2, lacking residues 6-15, is otherwise identical to statherin. SV3 is identical to SV2 but lacks the carboxyl-terminal phenylalanine. These results provide the first evidence for multiple forms of statherin which are probably derived both by post-translational modification and alternative splicing of the statherin gene.

[Indexed for MEDLINE]

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