Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
C4STNM_02143910090C4s    C4ST1    C4ST-1    Chst11   
C4STBC0133159606HSA269537    C4ST-1    C4ST1    CHST11   
C4STNM_0184139606C4ST1    C4ST-1    HSA269537    CHST11   
C4STAB0423269606
C4STAJ2695379606

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

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Text2Knowledge ... Yong Huang 2002