Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Herp1NM_01390410090CHF1    Hrt2    hesr2    Hey2   
HERP1BC0077079606GRL    HEY2   
HERP1NM_0122599606GRL    HEY2   

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

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Text2Knowledge ... Yong Huang 2002