Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Card2NM_03117010090K8    EndoA    Krt-2.8    Krt2-8   
CARD2BC0006549606K8    CK8    CYK8    K2C8    KO    KRT8   
CARD2BC0113739606K8    CK8    CYK8    K2C8    KO    KRT8   
CARD2BC0082009606K8    CK8    CYK8    K2C8    KO    KRT8   
CARD2BC0635139606K8    CK8    CYK8    K2C8    KO    KRT8   
CARD2NM_0022739606K8    KO    CK8    CYK8    K2C8    KRT8   

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

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Text2Knowledge ... Yong Huang 2002