The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
any anomaly in the process whose specific outcome is the formation of dental enamel, the hard outer coating of the exposed portion of the tooth; amelogenesis occurs after the first establishment of dentin, via cells known as ameloblasts, and can generally be divided into two broad stages: (i) a secretory stage that involves proteins and an organic matrix forming a partially mineralized enamel and (ii) a maturation stage which completes enamel mineralization