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.
anomaly in the amount of acetylcholine, an ester of acetic acid and choline; acetylcholine is a major neurotransmitter and neuromodulator both in the central and peripheral nervous systems; it also acts as a paracrine signal in various non-neural tissues