Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Slp1NM_03139310090PSGL-1    MGC7008    9030417L18    Sytl1   
Slp1BC005623100909030417L18    PSGL-1    MGC7008    Sytl1   
SLP1NC_0011444932VPT33    VPL25    VAM5    PEP14    MET27    CLS14    VPS33   
slp1AY0475367227
slp1AL1217704896SPAC821.08c   
slp1NC_0034244896SPAC821.08c   
slp1NG_0001607227FD6    slp    CG16738    CT37249    l(2)05965   
slp1AB05074110090
slp1AE0035787227
slp1NM_0573827227FD6    Slp    Slp-1    slp-2    Dmslp1    CG16738    l(2)05965   
slp1NT_0337797227FD6    Slp    Slp-1    slp-2    Dmslp1    CG16738    l(2)05965   

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

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Text2Knowledge ... Yong Huang 2002