"NCBITaxon:11972"^^ . "ncbi_taxonomy"^^ . "Cas NS-1 murine leukemia virus"^^ . . "Murine retrovirus Cas NS-1"^^ . "Cas-ns-1 murine leukemia virus"^^ . "Cas NS1 retrovirus"^^ . "NCBITaxon:53255"^^ . . "GC_ID:1"^^ . "NCBITaxon:11937"^^ .