Analysis of catRABC operon for catechol degradation from phenol-degrading Rhodococcus erythropolis. Export

@article{citeulike:3025081, abstract = {The gene cluster catRABC, involved in catechol degradation, was isolated from Rhodococcus erythropolis CCM2595. The genes catA, catB, catC, and the divergently transcribed catR code for catechol 1,2-dioxygenase, cis,cis-muconate cycloisomerase, muconolactone isomerase, and an IclR-type transcriptional regulator, respectively. Measurements of catechol 1,2-dioxygenase activity showed that the expression of catA is induced by phenol but not by catechol or cis,cis-muconate. The activity of catechol 1,2-dioxygenase was repressed by succinate, but no repression by glucose was observed. The transcription start points of catA and catR were determined by primer extension analysis, and the respective promoters (P-catA and P-catR) were thus localized. Measurements of promoter activity during batch cultivation using transcriptional fusion with the gfpuv reporter gene showed that expression of the catR-catABC operon is regulated at the level of transcription. Both P-catR and P-catA are repressed by CatR, and the induction of P-catA by phenol is maintained in the absence of the repressor (in R. erythropolis DeltacatR). Two different potential binding sites for the IclR-type regulator and a recognition site for the cyclic AMP receptor protein (CRP) were identified within the intergenic region between catR and catA.}, address = {Institute of Microbiology, Academy of Sciences of the Czech Republic, v. v. i., V\'{\i}densk\'{a} 1083, 14220, Prague 4, Czech Republic.}, author = {Vesel\'{y}, M. and Knoppov\'{a}, M. and Nesvera, J. and P\'{a}tek, M.}, citeulike-article-id = {3025081}, citeulike-linkout-0 = {http://dx.doi.org/10.1007/s00253-007-0997-6}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/17483937}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=17483937}, doi = {10.1007/s00253-007-0997-6}, issn = {0175-7598}, journal = {Applied microbiology and biotechnology}, keywords = {biodegradation, catr, for-the-review, iclr, regulation, transcription}, month = {August}, number = {1}, pages = {159--168}, posted-at = {2008-07-21 18:13:45}, priority = {4}, title = {Analysis of catRABC operon for catechol degradation from phenol-degrading Rhodococcus erythropolis.}, url = {http://dx.doi.org/10.1007/s00253-007-0997-6}, volume = {76}, year = {2007} }

TY - JOUR ID - citeulike:3025081 L3 - citeulike-article-id:3025081 N2 - The gene cluster catRABC, involved in catechol degradation, was isolated from Rhodococcus erythropolis CCM2595. The genes catA, catB, catC, and the divergently transcribed catR code for catechol 1,2-dioxygenase, cis,cis-muconate cycloisomerase, muconolactone isomerase, and an IclR-type transcriptional regulator, respectively. Measurements of catechol 1,2-dioxygenase activity showed that the expression of catA is induced by phenol but not by catechol or cis,cis-muconate. The activity of catechol 1,2-dioxygenase was repressed by succinate, but no repression by glucose was observed. The transcription start points of catA and catR were determined by primer extension analysis, and the respective promoters (P-catA and P-catR) were thus localized. Measurements of promoter activity during batch cultivation using transcriptional fusion with the gfpuv reporter gene showed that expression of the catR-catABC operon is regulated at the level of transcription. Both P-catR and P-catA are repressed by CatR, and the induction of P-catA by phenol is maintained in the absence of the repressor (in R. erythropolis DeltacatR). Two different potential binding sites for the IclR-type regulator and a recognition site for the cyclic AMP receptor protein (CRP) were identified within the intergenic region between catR and catA. IS - 1 JF - Applied microbiology and biotechnology SN - 0175-7598 AD - Institute of Microbiology, Academy of Sciences of the Czech Republic, v. v. i., Vídenská 1083, 14220, Prague 4, Czech Republic. EP - 168 TI - Analysis of catRABC operon for catechol degradation from phenol-degrading Rhodococcus erythropolis. VL - 76 SP - 159 KW - biodegradation KW - catr KW - for-the-review KW - iclr KW - regulation KW - transcription AU - Veselý, M AU - Knoppová, M AU - Nesvera, J AU - Pátek, M PY - 2007/08// UR - http://dx.doi.org/10.1007/s00253-007-0997-6 ER -