ISSN:
1432-0827
Keywords:
Odontoblast
;
Dentin
;
Mineralization
;
Casein kinase II
;
Phosphophoryn
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
,
Physics
Notes:
Abstract Odontoblasts that we prepared from bovine incisors produced a dentin-specific protein, phosphophoryn, and accumulated it in mineralized nodules. The time course of mineralization was detected by measuring osteocalcin and mineral in the nodules. The sequence of developmental expression of proteins in this mineralizing dentin cell culture is very similar to that in bone cells, suggesting a common mechanism for matrix mineralization in bone and dentin. Casein kinase II, which phosphorylates bone phosphoproteins and dentin phosphophoryn, also emerges coinciding with the initiation of mineralization. Furthermore, we have detected extracellular phosphorylation by casein kinase II of a dentin protein of Mr 60,000, which we recovered from the phosphophoryn fraction in CaCl2 precipitate.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00310265
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