Your Query SLC6A8 returns 11 Accession Numbers:

Query Term Accession NCBI Taxonid Synonyms Phenotype (OMIM) *
SLC6A8 U36341 9606 300036
SLC6A8 BC012355 9606 CRTR    CT1    300036
SLC6A8 U41302 9606 300036
SLC6A8 NM_005629 9606 CT1    CRTR    300036
SLC6A8 NM_174611 9913
Slc6a8 NT_039708 10090 300036
Slc6a8 NT_039745 10090 300036
Slc6a8 BC024444 10090 CRT    CT1    CRTR    300036
Slc6a8 BC049801 10090 CRT    CT1    CRTR    300036
SLC6A8 NT_025965 9606 300036
Slc6a8 NM_133987 10090 CRT    CT1    CRTR    Creat    300036

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

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Text2Knowledge ... Yong Huang 2002