Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Pybp1NM_02251610116Pybp    Pybp2    Ptb   
Pybp1BC06185810116Pybp2    Pybp    Ptb   
PYBP1X6078910116

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

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Text2Knowledge ... Yong Huang 2002