Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
hprt1BC0471737955zgc:55561   
HPRT1AY0093183702
HPRT1BC0005789606HGPRT    HPRT    308000
HPRT1AY3993759606308000
HPRT1AY3993769598
HPRT1AY39937710090308000
HPRT1NM_0001949606HPRT    HGPRT    308000
hprt1NM_1995187955zgc:55561   
HPRT1NT_0117869606308000

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

Google

Text2Knowledge ... Yong Huang 2002