Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGC66171BC0555277955Shmt1    zgc:66171   
MGC66171NM_2010467955Shmt1    zgc:66171   

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

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Text2Knowledge ... Yong Huang 2002