Your Query returns 17 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
GPABC0053199606MN    MNS    GYPA    111300
GPABC0133289606MN    MNS    GYPA    111300
GPANM_0020999606MN    MNS    GYPA    111300
GPANM_01036910090CD235a    Gypa    111300
gpAM983494754
gpAAF0352264754
gpAAF0431024754
gpAU198704754
gpAU198714754
gpaAF0125422903
GPAM572329606111300
GPAAF0151739593M/N   
GPAAF0151749593M/N   
GPAAF0151759593M/N   
GPAAF0151769593Henshaw (He)   
GPAM808279031
GPANM_2054929031

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

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Text2Knowledge ... Yong Huang 2002