Document Detail

Polychlorinated biphenyl/biphenyl degrading gene clusters in Rhodococcus sp. K37, HA99, and TA431 are different from well-known bph gene clusters of Rhodococci.
MedLine Citation:
PMID:  17485846     Owner:  NLM     Status:  MEDLINE    
Four kinds of polychlorinated biphenyl (PCB)-degrading Rhodococcus sp. (TA421, TA431, HA99, and K37) have been isolated from termite ecosystem and under alkaline condition. The bph gene cluster involved in the degradation of PCB/biphenyl has been analyzed in strain TA421. This gene cluster was highly homologous to bph gene clusters in R. globerulus P6 and Rhodococcus sp. RHA1. In this study, we cloned and analyzed the bph gene cluster essential to PCB/biphenyl degradation from R. rhodochrous K37. The order of the genes and the sequence were different in K37 than in P6, RHA1, and TA421. The bphC8(K37) gene was more homologous to the meta-cleavage enzyme involved in phenanthrene metabolism than bphC genes involved in biphenyl metabolism. Two other Rhodococcus strains (HA99 and TA431) had PCB/biphenyl degradation gene clusters similar to that in K37. These findings suggest that these bph gene clusters evolved separately from the well-known bph gene clusters of PCB/biphenyl degraders.
Katsuhiko Taguchi; Masaki Motoyama; Toshiya Iida; Toshiaki Kudo
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-05-07
Journal Detail:
Title:  Bioscience, biotechnology, and biochemistry     Volume:  71     ISSN:  0916-8451     ISO Abbreviation:  Biosci. Biotechnol. Biochem.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-05-23     Completed Date:  2007-07-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205717     Medline TA:  Biosci Biotechnol Biochem     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1136-44     Citation Subset:  IM    
Environmental Molecular Biology Laboratory, RIKEN Institute, Wako, Saitama, Japan.
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MeSH Terms
Biodegradation, Environmental
Biphenyl Compounds / metabolism*
Chromosome Mapping
Chromosomes, Plant
Cloning, Molecular
DNA, Plant / genetics
Gene Order
Genes, Bacterial*
Multigene Family*
Polychlorinated Biphenyls / metabolism*
Rhodococcus / genetics*,  metabolism
Sequence Analysis, DNA
Reg. No./Substance:
0/Biphenyl Compounds; 0/DNA, Plant; 0/Polychlorinated Biphenyls; 92-52-4/diphenyl

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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