| 摘要 |
Non-native constitutively phosphorylated forms of osteopontin are disclosed. Such osteopontin forms can be obtained, for example, using an expression vector comprising an isolated nucleic acid that encodes an osteopontin peptide, operably linked to a promoter wherein the osteopontin peptide is either constitutively phosphorylated or is capable of being constitutively phosphorylated. Also disclosed are mutant osteopontin peptides that are either constitutively phosphorylated, or are capable of being constitutively phosphorylated. The disclosed osteopontin forms have anti-calcification activity and, therefore, numerous applications. They can be used, for example, to create calcification-resistant tissue, or to treat calcification-related disease.
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