Other families of viruses seem to carry proteins that shut the bacterial CRISPR system down, which is more in line with what you ‘ d expect — a means of protecting the virus from the host’s defenses.
Perhaps the strangest things found in these viruses are genes that encode relatives of a protein called tubulin, which helps a cell organize its internal contents. Bacteria are rather notable for having a poorly defined internal organization, so seeing a virus leveraging something we don’t understand especially well is rather striking. Still, it’s easy to see how this protein could help get all the pieces needed for assembling a virus to the right place. But there’s clearly a lot we don’t understand about these viruses more generally, including the specific cells they infect — we know the environment they came from and the genuses of bacteria they’re generally found with, but not a whole lot more than that. Figuring out more and studying their dynamics in culture may help us understand how they can sometimes outcompete their smaller and faster-moving relatives. And, in the process, might teach us some lessons about the bacteria they’re infecting. (Nature) , . DOI: . 2007 / s 01575879 – – – 4 ( (About DOIs