Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MPG1NC_0011364932VIG9    SRB1    PSA1   
mpg1AP005022227882
mpg1AJ0062655693
MPG1U244374932
MPG1U8999151453
MPG1L20685148305
MPG1AF0624653656
mpg1NC_003155227882

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

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Text2Knowledge ... Yong Huang 2002