Enamel Protein

Protein-mediated enamel mineralization.

Enamel is a hard nanocomposite bioceramic with significant resilience that protects the mammalian tooth from external physical and chemical damages. The remarkable mechanical properties of enamel are associated with its hierarchical structural organization and its thorough connection with underlying dentin. This dynamic mineralizing system offers scientists a wealth of information that allows t...

[Changes in the enamel protein during enamel formation].

要 旨:幼 若エナ メル質 中に含 まれ ている有機質 のほ とん どを占めている蛋白質 は多成分系 であ る事 が知 ら れ てい る。それ らの うちの どの成分が生理的 に重要 なのかを明 らかにする 目的で,先 ずラ ッ ト幼若 エナ メル 蛋 白質についてゲル濾過 クロマ トグラフィー とSDS-ポ リアク リル ア ミ ドゲル電気泳動 を行 な って,石 灰 化 の進行 に伴 う蛋 白質 のパ ターンの変化 を調 べた。続 いて,ラ ッ トに3H-prolineを 静注 し,そ のエナメル質 へ の取込み の時間的 な変化 をゲル濾過 ク ロマ トグラフィー とポ リアク リル ア ミ ドゲル電気泳動 を行な って調 べ た。 その結果 は若 いstageのmain componentで ある分子量約20,000のproline,glutamic acid,histidi...

Enamel protein in smooth hypoplastic amelogenesis imperfecta.

Amelogenesis imperfecta (AI) remains a poorly understood group of hereditary enamel defects characterized by a wide array of clinical presentations. Although numerous reports have described the histological features of AI, knowledge concerning the biochemical composition of the affected enamel remains minimal. The purpose of this investigation was to examine the protein of smooth hypoplastic AI...

Further tests on human enamel protein.

Protein content of molar-incisor hypomineralisation enamel.

OBJECTIVES The aim of the study was to compare the relative amounts and nature of the proteinous content of sound and molar-incisor hypomineralisation (MIH) enamel. METHODS TCA (20%) was used to dissolve the mineral phase and precipitate the proteins from enamel pieces sectioned from sound and MIH enamel. The protein content was estimated using a miniaturized version of the method of Lowry et...