Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Man2c1NM_028636100901110025H24Rik    154580
Man2c1NW_04779910116
MAN2C1BC0505509606MANA    MANA1    MAN6A8    154580
MAN2C1NM_0067159606MANA    MANA1    MAN6A8    154580
Man2c1NT_03947410090154580
Man2c1BC03991310090154580
Man2c1BC01625310090154580
MAN2C1NT_0101949606154580
Man2c1NM_13925610116

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

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Text2Knowledge ... Yong Huang 2002