Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MMCP-4NM_01077910090Mcp-4    MMCP-4A    MMCP-4B    Mcpt4   
MMCP-4BC02619810090MMCP-4A    MMCP-4B    Mcpt4   
MMCP-4X6880410090

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

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Text2Knowledge ... Yong Huang 2002