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Benzene dioxygenase in Pseudomonas putida. Subunit composition and immuno-cross-reactivity with other aromatic dioxygenases.


ABSTRACT: The terminal oxygenase component of benzene dioxygenase from Pseudomonas putida strain ML2 was shown to contain two subunits, of Mr 54,500 and 23,500, by SDS/polyacrylamide-gel electrophoresis. The native Mr of the terminal oxygenase was estimated to be 168,000 +/- 4000. Polyclonal antibodies raised against each of the subunits cross-reacted with two polypeptides in cell-free extracts from toluene-grown Pseudomonas putida strain N.C.I.B. 11767. The Mr values of these polypeptides were similar to those reported for the subunits from the terminal dioxygenase component of toluene dioxygenase. These polypeptides were present only when this strain was grown on toluene. No cross-reactivity was observed with subunits of the naphthalene dioxygenase or benzoate dioxygenase systems.

SUBMITTER: Zamanian M 

PROVIDER: S-EPMC1148040 | biostudies-other | 1987 Jun

REPOSITORIES: biostudies-other

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2014-02-01 | GSE26785 | GEO