Anthrax bacteria: a step in the pathway to biofilms An enzyme that adds phosphate groups to other proteins, PrkC, mediates molecular signaling events that allow anthrax bacteria to form biofilms. Bacillus anthracis is widely used as a model to explore the formation of biofilms that allows many bacterial infections to resist immune defenses. An international research team led by Yogendra Singh and Andaleeb Sajid at the CSIR-Institute of Genomics and Integrative Biology in Delhi, India, studied the bacterial protein kinase PrkC. The researchers found that PrkC phosphorylates a “chaperone” protein that assist the assembly and disassembly of other protein-based structures. This signaling protein and the chaperone help in biofilm formation. Establishing this link in the signaling chain leading to biofilms will guide future research to combat the role of biofilms in disease.
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