Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Pro1557AE017165167539
Pro1557NC_005042167539
PRO1557BC0593679606TF   
PRO1557NM_0010639606PRO2086    TF   

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

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Text2Knowledge ... Yong Huang 2002