Your Query returns 19 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Gnai2NM_1998427955fi21e06    zgc:56690    wu:fi21e06   
Gnai2BC0493437955fi21e06    zgc:56690    wu:fi21e06   
Gnai2L7989831033
GNAI2AY3914297955
GNAI2M690129606139360
Gnai2NW_04780110116
GNAI2BC0121389606GIP    GNAI2B    139360
GNAI2BC0146279606GIP    GNAI2B    139360
GNAI2BC0169959606GIP    GNAI2B    139360
GNAI2AF4939069606139360
GNAI2NM_0020709606GIP    GNAI2B    139360
Gnai2NT_03947710090139360
Gnai2BC00669510090139360
Gnai2BC03713010090139360
Gnai2BC06515910090139360
GNAI2G306769823
Gnai2NM_00813810090Gia    Gnai-2    139360
GNAI2NT_0225179606139360
Gnai2NM_03103510116

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

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Text2Knowledge ... Yong Huang 2002