Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
A630054I03RikNM_13325510090MGC28586    Hook2   
A630054I03RikBC01948610090MGC28586    Hook2-pending   
A630054I03RikBC05588110090MGC28586    Hook2-pending   

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

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Text2Knowledge ... Yong Huang 2002