Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
OPN1MWAY2860189315
Opn1mwNM_00810610090Gcp    303800
Opn1mwNW_04805210116
OPN1MWNM_0005139606CBD    DCB    GCP    CBBM    303800
Opn1mwNT_03970810090303800
Opn1mwNT_03974510090303800
Opn1mwBC01482610090303800
OPN1MWNT_0259659606303800
Opn1mwNM_05354810116

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002