Your Query returns 18 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Orc4lNM_01195810090Orc4    Orc4P    mMmORC4    603056
ORC4LBC0148479606ORC4    ORC4P    603056
ORC4LAF0221089606603056
ORC4LAF0475989606603056
ORC4LAF1325969606603056
ORC4LAY4094349606603056
ORC4LAY4094359598
ORC4LAY40943610090603056
ORC4LNM_0025529606ORC4    ORC4P    603056
ORC4LNM_1817419606ORC4    ORC4P    603056
ORC4LNM_1817429606ORC4    ORC4P    603056
Orc4lNT_03920610090603056
Orc4lBC01974810090Orc4P    mMmORC4    603056
Orc4lBC01507210090Orc4P    mMmORC4    603056
Orc4lBC06051610116MGC72574   
ORC4LNT_0050589606603056
Orc4lNM_19909210116MGC72574   
ORC4LBC0053889606ORC4    ORC4P    603056

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

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Text2Knowledge ... Yong Huang 2002