Nukleotidsekvenser, der koder for dapC-genet, og fremgangsmåde til fremstilling af L-lysin

摘要

Isolated polynucleotide comprises the dapC gene from coryneform bacteria, is new. Isolated polynucleotide (I): (i) is at least 70% identical with a sequence that encodes a protein (II) comprising a 367 amino acid (aa) sequence as given in the specification; (ii) encodes a polypeptide at least 70% identical with (II); (iii) is complementary to (i) or (ii); or (iv) contains at least 15 consecutive nucleotides from (i)-(iii). Independent claims are also included for the following: (1) a vector (III) containing (I); (2) a coryneform bacterial host cell (VI) that contains (III), or has the zwaI gene; (3) the production of L-aa, especially L-lysine, by growing bacteria in which at least the dapC gene is amplified; (4) DNA (V), from coryneform bacteria which encodes an N-succinyl-aminoketopimelate-transaminase and whose sequence is as (2) except that 209Pro is replaced by some other aa; and (5) coryneform bacteria (V) containing (V).