Odorant coreceptor which complexes with conventional odorant receptors (ORs) to form odorant-sensing units, providing sensitive and prolonged odorant signaling and calcium permeability (By similarity). Obligate coreceptor of all odorant receptors (By similarity). Orco is a universal and integral part of the functional odorant receptor, involved in the dendritic localization of other olfactory receptors. Can form functional ion channels in the absence of an odor-binding odorant receptor (By similarity). Plays a central role in the perception of olfactory stimuli in ants and is essential for ant social organization (PubMed:28802042). Required for pheromone sensing (PubMed:28802042). Also required for the development and maintenance of odorant receptor neurons (ORNs) and of antennal lobe glomeruli (PubMed:28802042).

Belongs to the insect chemoreceptor superfamily. Heteromeric odorant receptor channel (TC 1.A.69) family. Orco subfamily.

478 amino acids

MMKMKQQGLVADLLPNIRVMKTFGHFVFNYYNDNSSKYLHKVYCCVNLFMLLLQFGLCAVNLIVESADVDDLTANTITLLFFTHSIVKICYFAIRSKYFYRTWAIWNNPNSHPLFAESNARYHAIALKKMRLLLFLVGGTTMLAAVAWTVLTFFEHPIRKIVDPVTNETEIIELPQLLIRSFYPFDAGKGITHVLVLVYQFYWVLFMLIDANSLDVLFCSWLLFACEQLQHLKQIMKPLMELSATLDTVVPNSSELFKAGSADHLRDGDNPPPPPPPQSDNMLDLDLRNIYSNRQDFTATFRPTAGMTFNGGVGPNGLTKKQEALVRSAIKYWVERHKHIVRLVTAVGDAYGFALLLHMLTTTITLTLLAYQATKVNGINVYAASTIGYILYTFGQVFLFCIFGNRLIEESTSVMEAAYSCHWYDGSEEAKTFVQIVCQQCQKAMSISGAKFFTVSLDLFASVLGAVVTYFMVLVQLK

54.1 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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