CLONING AND CHARACTERIZATION OF A GENE CODING FOR THE CATECHOL 1,2-DIOXYGENASE OF ARTHROBACTER SP MA3

被引:31
作者
ECK, R [1 ]
BELTER, J [1 ]
机构
[1] MARTIN LUTHER UNIV,INST MICROBIOL,WEINBERGWEG 16A,POB 8,O-4010 HALLE,GERMANY
关键词
GENE CLONING; CIS-CIS-MUCONATE; MINICELLS; ESCHERICHIA-COLI; ACINETOBACTER; ALCALIGENES; PSEUDOMONAS; BIODEGRADATION; GRAM+ BACTERIA;
D O I
10.1016/0378-1119(93)90544-D
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
The cat A gene, coding for the catechol 1,2-dioxygenase (C12O) of the bacterial strain Arthrobacter sp. mA3, was cloned and expressed in Escherichia coli. One plasmid containing a 6.1-kb EcoRI insert was selected by its ability to degrade catechol and to accumulate cis-cis-muconate. The DNA insert of this plasmid was mapped with restriction enzymes. The cat A gene was subcloned on a 1.3-kb PstI-EcoRI fragment by deleting the adjacent restriction fragments. The nucleotide sequence of cat A was determined. The C12O is coded for by a gene spanning 849 nucleotides and the deduced M(r) of the protein is 30560. The polypeptide encoded by the cloned catA gene was expressed in an E. coli minicell system and detected by gel electrophoresis.
引用
收藏
页码:87 / 92
页数:6
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