Oxidative stress-induced expression of catalases in Comamonas terrigena
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
12094731
DOI
10.1007/bf02817644
Knihovny.cz E-zdroje
- MeSH
- Comamonas enzymologie MeSH
- elektroforéza v polyakrylamidovém gelu MeSH
- kadmium farmakologie MeSH
- katalasa genetika metabolismus MeSH
- látky znečišťující půdu metabolismus MeSH
- oxidační stres fyziologie MeSH
- peroxidasa metabolismus MeSH
- regulace genové exprese u bakterií MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- kadmium MeSH
- katalasa MeSH
- látky znečišťující půdu MeSH
- peroxidasa MeSH
When grown under oxidative stress, catalatic as well as peroxidatic activity is increased in the Gram-negative bacterium Comamonas terrigena N3H. Two distinct hydroperoxidases were demonstrated by a specific staining. Based on their molar masses and their sensitivity toward 3-amino-1,2,4-triazole and high temperatures, they were identified as dimeric catalase-1 (Cat-1; 150 kDa), and as a tetrameric catalase-2 (Cat-2; 240 kDa) with enhanced peroxidatic activity, respectively. These two catalases differ in their expression during the bacterial growth; whereas the expression of the smaller enzyme (Cat-1) is induced by 0.5 mmol/L peroxides in the medium, and to a lesser degree by 25 mg/L Cd2+, Cat-2 (typical catalase) is almost specifically induced with cadmium ions.
Zobrazit více v PubMed
Mol Plant Microbe Interact. 1998 Aug;11(8):772-83 PubMed
Nature. 1970 Aug 15;227(5259):680-5 PubMed
Anal Biochem. 1976 May 7;72:248-54 PubMed
Folia Microbiol (Praha). 1999;44(6):587-624 PubMed
Arch Microbiol. 1998 Jun;169(6):503-8 PubMed
Folia Microbiol (Praha). 2000;45(6):491-2 PubMed
Anal Biochem. 1971 Nov;44(1):301-5 PubMed
J Bacteriol. 1997 Jul;179(13):4158-63 PubMed
Prog Biophys Mol Biol. 1999;72(1):19-66 PubMed
J Mol Evol. 1996 Apr;42(4):469-71 PubMed
J Bacteriol. 1988 Sep;170(9):3910-4 PubMed
Biochim Biophys Acta. 1980 Dec 15;633(3):317-22 PubMed
Folia Microbiol (Praha). 1997;42(6):635-9 PubMed
Folia Microbiol (Praha). 2000;45(6):493-5 PubMed
FEMS Microbiol Lett. 1996 Nov 15;145(1):63-9 PubMed
Free Radic Biol Med. 1995 Feb;18(2):321-36 PubMed
J Bacteriol. 1996 Dec;178(23):6895-903 PubMed
Proc Natl Acad Sci U S A. 1979 Sep;76(9):4350-4 PubMed
FEBS Lett. 1974 May 1;41(2):283-6 PubMed
Anal Biochem. 1987 May 1;162(2):443-5 PubMed
Production of catalases by Comamonas spp. and resistance to oxidative stress
