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Top right: an electron microscope captures the weave structure of the long crystal strands that give enamel its strength. Bottom: A model based on nuclear magnetic resonance data derived at Pacific Northwest National Laboratory that shows how an active portion of the enamel-building protein, an amelogenin called LRAP, interacts with the crystal hydroxyapatite, or HAP, used by the body to engineer both bone and enamel. An isotopically labeled amino acid group (yellow, just left of center) in LRAP is near the HAP surface, a closeness that appears to encourage full interaction of protein with HAP that enables the protein to dictate the pattern of crystal formation.

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Document Title: Sculpting Enamel from Bone
Category: Health-Related Research and Technologies, Materials Science
Media Type: Graphics
Date of Image/Photo: Summer 2004
Background:
URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/AMER-655MED

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