>sp|Q4SBY6|HNMT_TETNG Histamine N-methyltransferase OS=Tetraodon nigroviridis GN=hnmt MASAMRSLIEDDSRYLKSFKLFLERSTEHQCVQEFIHNVLPDILGSVGKGKTHLNVIGVG SGAGEVDLEILSELHSRHPGASVDNEVVEPSAQQLQDYKALVLQKKDLDYISFNWNKMTA TEFEERWRANKMSKEADFIHMIQMLYYVKDPEATTSFFQSLLSKTGKLLIILVSGNSGWG KLWKTYKNQFCNPEISQCVTTADIQSFLDSKGARYQSFELPSQMDITECFTQGDEKGELL LDFLTEVLEFSKTASPELRAEVMELLRHPDCSVESNGRVMFNNNLGVIVLD