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What is HORDE?

HORDE (The Human Olfactory Data Explorer) is a database of human Olfactory Receptors (ORs), the largest multigene family in vertabrates. ORs are G-Coupled Protein Receptors with a 7-transmembrane structure. The ORs are responsible for triggering the olfactory signal transduction pathway. You will find here information on the entire human OR repertoire, including a rich annotation on genomic variations, classification, orthologs and other features. Also available are OR repertoires of other mammalian species.

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