Linked Life Data

16232495

Source:http://linkedlifedata.com/resource/pubmed/id/16232495

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-10-19
pubmed:abstractText
We constructed a hybrid strain that acquired 3,4-dioxygenase activity for polychlorinated biphenyls (PCBs). This strain, KF707-D34, possessed a chimeric biphenyl dioxygenase gene, of which a portion of bphA1 (coding for a large subunit of biphenyl dioxygenase) of Pseudomonas pseudoalcaligenes KF707 was replaced with that of a PCB-degrader, Burkholderia cepacia LB400 by homologous recombination. KF707-D34 retained the ability to degrade 4,4'-dichlorobiphenyl via 2,3-dioxygenation in a fashion identical to that of KF707 and gained novel capability to degrade 2,5,4'-trichlorobiphenyl and 2,5,2',5'-tetrachlorobiphenyl via 3,4-dioxygenation in a fashion identical to that of LB400. Sequence analysis of bphA1 from KF707-D34 revealed that three nucleotides in the 3'-terminal region of KF707 bphA1 were changed to correspond to those in LB400 bphA1. The resulting BphA1 protein in KF707-D34 was changed at position 376 from threonine (Thr) to asparagine (Asn). The results demonstrate that a minor alteration of the amino acid sequence in BphA1 improved the PCB degradation capability in biphenyl-utilizing bacteria.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:issn
1389-1723
pubmed:author
pubmed:issnType
Print
pubmed:volume
87
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
430-5
pubmed:year
1999
pubmed:articleTitle
Engineering a hybrid pseudomonad to acquire 3,4-dioxygenase activity for polychlorinated biphenyls.
pubmed:affiliation
Department of Agricultural Chemistry, Kyushu University, Fukuoka 812-8581, Japan.
pubmed:publicationType
Journal Article