Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
H4F2NM_0035489606H4    H4FN    HIST2H4    142750
H4F2J027699606142750
H4F2M167079606142750
H4F2M102319606142750

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

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Text2Knowledge ... Yong Huang 2002