penicillin v amidohydrolase gene from fusarium oxysporum

摘要

The following sequences are new: (a) a PVA DNA or cDNA (I) sequence encoding the 507 or 532 amino acid sequences given in the specification; (b) the 240 bp PVA gene promoter (II) given in the specification; (c) 23-33 bp long PVA gene fragments and encoded peptides; (d) a sequence complementary to that of (a); (e) a sequence capable of hybridising under stringent conditions to that of (d); (f) a degenerate oligonucleotide probe and sequences used in the construction of the probe; and (g) mutagenic oligonucleotides used in vector construction. Also claimed are (1) a polypeptide encoded by (I); (2) expression vectors comprising (I) and promoter (II); (3) a host cell contg.an expression vector of (2); (4) N-terminal peptides of six isolated major PVA fragments (A, B1, B2, C, D and E) and (5) biologically pure samples of Escherichia coli ATCC 69720, 69721 and 69772.