Organophosphorus hydrolase (OpdB) of Lactobacillus brevis WCP902 from kimchi is able to degrade organophosphorus pesticides.
Lactobacillus brevis WCP902 that is capable of biodegrading chlorpyrifos was isolated from kimchi. The opdB gene cloned from this strain revealed 825 bp, encoding 274 aa, and an enzyme molecular weight of about 27 kDa. OpdB contains the same Gly-X-Ser-X-Gly motif found in most bacterial and eukaryotic esterase, lipase, and serine hydrolases, yet it is a novel member of the GDSVG family of esterolytic enzymes. Its conserved serine residue, Ser82, is significantly involved with enzyme activity that may have application for removing some pesticides. Optimum organophosphorus hydrolase (OpdB) activity appeared at pH 6.0 and 35 degrees C and during degradation of chlorpyrifos, coumaphos, diazinon, methylparathion, and parathion.
Islam
Shah Md Asraful
SM
Division of Applied Life Science (BK21 Program), Gyeongsang National University, Chinju, Korea.
Math
Renukaradhya K
RK
Cho
Kye Man
KM
Lim
Woo Jin
WJ
Hong
Su Young
SY
Kim
Jong Min
JM
Yun
Myoung Geun
MG
Cho
Ji Joong
JJ
Yun
Han Dae
HD
D043303:Aryldialkylphosphatase / Q000378:metabolism*; D001483:Base Sequence; D017931:DNA Primers; D052196:Levilactobacillus brevis / Q000201:enzymology*; D009943:Organophosphorus Compounds / Q000378:metabolism*; D010575:Pesticides / Q000378:metabolism*
D017931:DNA Primers; D009943:Organophosphorus Compounds; D010575:Pesticides; D043303:Aryldialkylphosphatase