Your Query returns 8 Accession Numbers:
Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
pkn1M7349834
pkn1AL935256220668
pkn1AP005023227882
PKn1AB01599935883
pkn1AE017157182082
pkn1NC_005043182082
pkn1NC_004567220668
pkn1NC_003155227882

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

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Text2Knowledge ... Yong Huang 2002