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Outbreaks of African swine fever virus (ASFv) and porcine epidemic diarrhoea virus (PEDv) have revealed the susceptibility of livestock to disease transmitted through feed. Several viruses, including PEDv, survive in feed and may introduce disease that causes significant morbidity and mortality. In 2013, PEDv, which causes severe diarrhoea and vomiting, reached North America after spreading for decades...
The Sindbis virus RNA-dependent RNA polymerase (nsP4) is responsible for the replication of the viral RNA genome. In infected cells, nsP4 is localized in a replication complex along with the other viral non-structural proteins. nsP4 has been difficult to homogenously purify from infected cells due to its interactions with the other replication proteins and the fact that its N-terminal residue, a tyrosine,...
Fe-only hydrogenases contain a di-iron active site complex, in which the two Fe atoms have carbon monoxide and cyanide ligands and are linked together by a putative di(thiomethyl)amine molecule. We have cloned, purified and characterized the HydE and HydG proteins, thought to be involved in the biosynthesis of this peculiar metal site, from the thermophilic organism Thermotoga maritima. The HydE protein...
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