Your Query returns 13 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cacnb1NM_03117310090Cchb1    Cchlb1    114207
Cacnb1NW_04733810116
CACNB1BC0373119606CACNLB1    CCHLB1    CCHLB    114207
CACNB1AY3938579606114207
CACNB1NM_1758199913
Cacnb1AF06889810090114207
Cacnb1NT_03952110090114207
CACNB1NM_0007239606CAB1    CCHLB1    CACNLB1    MGC41896    114207
CACNB1NM_1992479606CAB1    CCHLB1    CACNLB1    MGC41896    114207
CACNB1NM_1992489606CAB1    CCHLB1    CACNLB1    MGC41896    114207
Cacnb1NM_01734610116
Cacnb1NM_14512110090Cchb1    Cchlb1    114207
CACNB1NT_0107559606114207

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

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Text2Knowledge ... Yong Huang 2002