Cloning and sequencing of the gene encoding the enzyme for the reductive cleavage of diaryl ether bonds of 2,3,7,8-tetrachlorodibenzo-p-dioxin in Geobacillus thermodenitrificans UZO 3

2018 ◽  
Vol 126 (4) ◽  
pp. 488-496 ◽  
Author(s):  
Yuzo Suzuki ◽  
Masaya Nakamura ◽  
Yuichiro Otsuka ◽  
Nao Suzuki ◽  
Keisuke Ohyama ◽  
...  
1986 ◽  
Vol 261 (32) ◽  
pp. 14929-14935
Author(s):  
J W Chase ◽  
B A Rabin ◽  
J B Murphy ◽  
K L Stone ◽  
K R Williams

2000 ◽  
Vol 182 (19) ◽  
pp. 5615-5619 ◽  
Author(s):  
Jörg Sauer ◽  
Ulrike Dirmeier ◽  
Karl Forchhammer

ABSTRACT We report the cloning and sequencing of the glnN gene encoding a class III glutamine synthetase from the cyanobacteriumSynechococcus strain PCC 7942. Mapping of the transcriptional start site revealed a DNA sequence in the promoter region that resembles an imperfect NtcA binding motif. Expression ofglnN is impaired in NtcA- and PII-deficient mutants. The only parameter which was negatively affected in theglnN mutant compared to the wild type was the recovery rate of prolonged nitrogen-starved cells with low concentrations of combined nitrogen.


2000 ◽  
Vol 66 (9) ◽  
pp. 3945-3950 ◽  
Author(s):  
Harald J. Ruijssenaars ◽  
Sybe Hartmans ◽  
Jan C. Verdoes

ABSTRACT Xanthan-modifying enzymes are powerful tools in studying structure-function relationships of this polysaccharide. One of these modifying enzymes is xanthan lyase, which removes the terminal side chain residue of xanthan. In this paper, the cloning and sequencing of the first xanthan lyase-encoding gene is described, i.e., thexalA gene, encoding pyruvated mannose-specific xanthan lyase of Paenibacillus alginolyticus XL-1. ThexalA gene encoded a 100,823-Da protein, including a 36-amino-acid signal sequence. The 96,887-Da mature enzyme could be expressed functionally in Escherichia coli. Like the native enzyme, the recombinant enzyme showed no activity on depyruvated xanthan. Compared to production by P. alginolyticus, a 30-fold increase in volumetric productivity of soluble xanthan lyase was achieved by heterologous production in E. coli. The recombinant xanthan lyase was used to produce modified xanthan, which showed a dramatic loss of the capacity to form gels with locust bean gum.


Extremophiles ◽  
1997 ◽  
Vol 1 (1) ◽  
pp. 29-35 ◽  
Author(s):  
Hiromichi Wakai ◽  
Satoshi Nakamura ◽  
Hiroshi Kawasaki ◽  
Kei Takada ◽  
Shin Mizutani ◽  
...  

Gene ◽  
1995 ◽  
Vol 160 (1) ◽  
pp. 101-103 ◽  
Author(s):  
Carol E. Jones ◽  
Toni M. Fleming ◽  
Peter W. Piper ◽  
Jennifer A. Littlechild ◽  
Don A. Cowan

2004 ◽  
Vol 39 (6) ◽  
pp. 659-664 ◽  
Author(s):  
Yun Ji Wang ◽  
Xin Zheng ◽  
Ling Hua Zhang ◽  
Yoshiyuki Ohta

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