EGF modul sadržavajući, mucinu sličan, hormonski receptor 2 je protein koji je kod ljudi kodiran EMR2genom.[1] EMR2 je isto tako poznat kao CD312 (klaster diferencijacije 312).
Ovaj protein je član adhezinske familije GPCR receptora[2] izražene predominantno u ćelijama imunskog sistema. Ti proteini imaju karakteristični dugački ekstracelularni region sa promenljivim brojem N-terminalnih domena sličnih epidermalnom faktoru rasta (EGF), koji je spregnut sa TM7 domenom putem domena sličnog mucinu. Ovaj gen je blisko srodan sa genom na hromozomu 19 koji kodira molekul EMR3. EMR2 protein ne formira interakcije sa komplementnim regulatornim proteinom, ubrzavajućim faktorom razvoja (CD55), za razliku od srodnog CD97 antigena, iz čega sledi da ovi veoma slični proteini imaju nepreklapajuće funkcije. Poznato je više trankriptnih izoformi.[1]
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