Abstract:
:Ferric uptake regulator (Fur) proteins are widely recognized as repressors that in many prokaryotes regulate a large number of genes involved in iron homeostasis and oxidative stress response. In our study, we were able to identify the complete sequence of the fur gene from Microcystis aeruginosa using inverse-polymerase chain reaction. DNA sequence analysis confirmed the presence of a 183 amino-acid open reading frame that showed high identity with Fur proteins reported for cyanobacteria. The recombinant Fur protein has been purified and electrophoretical mobility shift assays shown to be active. Mn2+ and dithiothreitol enable Fur to bind to its promoter, with dithiothreitol being more potent. The expression of Fur in Microcystis was induced about twofold in iron-deficient conditions.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Martin-Luna B,Hernandez JA,Bes MT,Fillat MF,Peleato MLdoi
10.1111/j.1574-6968.2005.00015.xkeywords:
subject
Has Abstractpub_date
2006-01-01 00:00:00pages
63-70issue
1eissn
0378-1097issn
1574-6968pii
FML015journal_volume
254pub_type
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