Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CPbeat2NM_00979810090CPB1    CPB2    Cappb1    CPbeta1    CPbeta2    1700120C01Rik    Capzb   
CPbeat2BC00205310090CPB1    CPB2    CPbeta1    CPbeta2    Capzb   

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

Google

Text2Knowledge ... Yong Huang 2002