Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Prkar1bNM_00892310090RIbeta    176911
PRKAR1BM650669606176911
PRKAR1BNM_0027359606PRKAR1    176911
Prkar1bNT_03931610090176911
Prkar1bBC01142410090RIbeta    176911
PRKAR1BG183279606176911
PRKAR1BNT_0795169606176911

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

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Text2Knowledge ... Yong Huang 2002