>sp|Q9RA45|NARK2_THETH Probable nitrate/nitrite antiporter NarK2 OS=Thermus thermophilus GN=narK2 MLKSAKGTWITDWNPEDPKRWDPALAWRTLWITTFNLTLSFITWYVVSALVVRLPKVGFE LSTTQLFWLTAMPGLAGGTLRIIWTFLPPILGTRHLVTFSTLLLLIPLLGWGFAVQNTGT PYWVLLLLAFLAGIGGGHFSGYMPSTSYFFPKRLQGTALGLQAGIGNFGVSIVQFVTPWI IGFALFGSLLGGPQTFTPKPGVSQPIWLQNATFAWVPFVLLGALLAWVYLRSVPIRANFR EQFDIFRDKHTWIMTSLYIMTFGSFSGFSAIFPLLIREVYGKFEGAPDPLRYAFLGPLVG SLARVIAGPISDRLGGAIVTQVSAIGIFLSALLVTLYTRPTSLDQFPMFVVAMLLIFFFS GVGNASTFKQMPMIFPPRQAGGVIGWTAAVAAYGPFLFSTLAAYTQQATGGFTAFFYGLM VFYAFNFFLNWYYYARKGAEKPC