The invention relates to a method for preparing a purified peptide deformylase, comprising contacting a liquid which comprises a peptide deformylase containing an ionic tag and at least one other enzyme with an ion exchange material to which material the ionic tag binds by ionic interaction and separating the other enzyme from said peptide deformylase. The invention further provides a peptide deformylase comprising an ionic tag, a vector comprising a nucleic acid sequence encoding such a peptide deformylase and a cell comprising such a vector.
本发明涉及一种制备纯化
多肽变形酶的方法,包括将包含含有离子标签的
多肽变形酶和至少一种其它酶的液体与离子交换材料接触,离子标签通过离子相互作用与该材料结合,并将其它酶与所述
多肽变形酶分离。本发明进一步提供了一种包含离子标签的
多肽变形酶、一种包含编码这种
多肽变形酶的
核酸序列的载体和一种包含这种载体的细胞。