核酸外切酶（exonucleautomotive service engineers）在核酸水解酶中，是具有从分子链的末端顺次水解磷酸二酯键而生成单核苷酸作用的酶
这会比核酸外切酶测序法快得多。
这会比核酸外切酶测序更快，也会更加精确：因为碱基彼此间仍然相连，不会以错误的顺序通过纳米孔。
It would also be more accurate: because the bases are still attached to one another, there is no chance that they will pass through the nanopore in the wrong order.
所以“牛津纳米孔公司”，和快速测序领域的领头羊，“Illumina公司”也在一同研究一种叫做“核酸外切酶测序”的办法。
So Oxford Nanopore has also been looking at an alternative approach, called exonuclease sequencing, in conjunction with Illumina, an American firm that is the market leader in rapid sequencing.
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