| 摘要 |
<p>Novel polypeptides involved in the biosynthesis of cobalamines and/or cobamides, in particular coenzyme B12, genetic material reponsible for expressing these polypetides, and a method for preparing them, are described. A method for amplifying the production of cobalamines, and particularly coenzyme B12, using recombinant DNA techniques, are also described.</p> |
