Abstract:
:Acinetobacter lwoffii K24 known as an aniline degrading bacterium has also been found to utilize p-hydroxybenzoate as a sole carbon source. In this study, 2-DE using Q-Sepharose column separation was attempted for fast screening of protocatechuate 3,4-dioxygenase for catabolism of p-hydroxybenzoate in A. lwoffii K24. Two protocatechuate 3,4-dioxygenase subunits, pcaG and pcaH were detected and identified with N-terminal and internal sequencing, suggesting proteomics using a column separation may be helpful for the identification of specific protein spots and maximizing the detectable protein spots on the 2-DE gel. The PCR process using degenerate primers for protocatechuate 3,4-dioxygenase and sequence analyses of the PCR products revealed the existence of pcaH and pcaG in A. lwoffii K24. These two subunits were found to be closely located and share extensive homology with pcaH and pcaG of Pseudomonas marginata or Pseudomonas cepacia, providing the evidence that A. lwoffi K24 has the protocatechuate branches as well as catechol branches of beta-ketoadipate pathway.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Kahng HY,Cho K,Song SY,Kim SJ,Leem SH,Kim SIdoi
10.1016/s0006-291x(02)00778-7subject
Has Abstractpub_date
2002-07-26 00:00:00pages
903-9issue
4eissn
0006-291Xissn
1090-2104pii
S0006291X02007787journal_volume
295pub_type
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