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    Select All symbol name category organism
    Select Ogfrl1 opioid growth factor receptor-like 1 mousesquare
    Select Opcml opioid binding protein/cell adhesion molecule-like mousesquare
    Select Oprl1 opioid receptor-like 1 mousesquare
    Select P2rx5 purinergic receptor P2X, ligand-gated ion channel, 5 mousesquare
    Select Pbx3 pre B-cell leukemia transcription factor 3 mousesquare
    Select Pdyn prodynorphin mousesquare
    Select Per1 period homolog 1 (Drosophila) mousesquare
    Select Per2 period homolog 2 (Drosophila) mousesquare
    Select Pftk1 PFTAIRE protein kinase 1 mousesquare
    Select Phyh phytanoyl-CoA hydroxylase mousesquare
    Select Plcd1 phospholipase C, delta 1 mousesquare
    Select Plxna2 plexin A2 mousesquare
    Select Pnoc prepronociceptin mousesquare
    Select Pomc1 pro-opiomelanocortin-alpha mousesquare
    Select Ppp1r1b protein phosphatase 1, regulatory (inhibitor) subunit 1B mousesquare