Your Query returns 14 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
rapsnNM_1783057955rapsyn   
RapsnNM_00902310090Raps    43kDa    Nraps    rapsyn    601592
RAPSNBC0041969606MGC3597    601592
RAPSNAY4125789606601592
RAPSNAY4125799598
RAPSNAY41258010090601592
RAPSNAF4492189606601592
RAPSNNM_0050559606MGC3597    601592
RAPSNNM_0326459606MGC3597    601592
RapsnAH00544410090601592
RapsnL3372810090601592
RapsnL3372710090601592
RapsnNT_07834610090601592
RAPSNNT_0092379606601592

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

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Text2Knowledge ... Yong Huang 2002