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Thiopeptides are ribosomally synthesized, posttranslationally modified peptides with potent activity against Gram-positives. However, only GE2270 has yielded semisynthetic derivatives under clinical investigations. The pbt gene cluster from the GE2270 producer Planobispora rosea was successfully expressed in the genetically tractable Nonomuraea ATCC39727. Gene deletions established that PbtO, PbtM1,...
Dynamic modulation of the actin cytoskeleton is critical for synaptic plasticity, abnormalities of which are thought to contribute to mental illness and addiction. Here we report that mice lacking Eps8, a regulator of actin dynamics, are resistant to some acute intoxicating effects of ethanol and show increased ethanol consumption. In the brain, the N-methyl-D-aspartate (NMDA) receptor is a major...
EPS8 codes for a protein essential in Ras to Rac signaling leading to actin remodeling. Three genes highly homologous to EPS8 were discovered, thereby defining a novel gene family. Here, we report the genomic structure of EPS8 and the EPS8-related genes in human and mouse. We performed BLASTN searches against the Celera Human Genome and Mouse Fragments Database. The mouse fragments were manually assembled,...
DNA replication of phage-plasmid P4 proceeds bidirectionally from theori1site (previously namedori), but requires a secondcis-acting region,crr.Replication depends on the product of the P4 α gene, a protein with primase and helicase activity, that binds bothori1andcrr.A negative regulator of P4 DNA replication, the Cnr protein, is required for copy number control of plasmid P4. Using a plasmid complementation...
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