Finally, if malonyl-FabC cannot bind productively with the activated RedP, formation and release of a 3-ketoacyl-ACP product will only be observed with malonyl-RedQ. This work was supported by a grant from the National Institutes of Health (GM 077147). “
“Rapid selleck screening library detection and quantification of Flavobacterium psychrophilum, the causative agent of bacterial cold water disease (BCWD) in rainbow trout, are crucial to disease surveillance and encompass

an essential component of BCWD research. Real-time, or quantitative polymerase chain reaction (qPCR) assays that have previously targeted the 16S rRNA gene of F. psychrophilum are complicated by polymorphisms and Selleck GSK2126458 off-target amplification. Insignia primer and probe development software were used to identify a conserved single-copy signature sequence in the F. psychrophilum genome that codes for a hypothetical protein with unknown function. Primer and

probes were used in a TaqMan qPCR assay that amplified 210 F. psychrophilum isolates with a lower limit of linear detection at 3.1 genome equivalents per reaction, with no amplification of 23 nontarget bacterial isolates. The assay was not inhibited by host spleen DNA or spleen homogenate. Methods were successfully applied to detect F. psychrophilum in rainbow trout from naturally occurring BCWD outbreaks and to quantify bacterial loads in experimentally infected rainbow trout. This assay will be applied to future studies to characterize

disease pathogenesis in fish selectively bred for BCWD resistance. “
“To identify Saccharomyces cerevisiae genes required for the proper timing of cell cycle transitions, we previously Florfenicol reported a systematic examination of the DNA content of homozygous diploid deletion strains. However, deletion strains with complex DNA content profiles were not examined in that study. Here, we report S. cerevisiae genes that when deleted give rise to DNA content profiles consistent with roles of the corresponding gene products during DNA replication. We also identified a set of genes whose deletion leads to increased DNA content, consistent with defects in mitosis, cytokinesis, or cell separation. Finally, we examined known interactions between the gene products of each group, placing these gene products in functional networks. Taken together, the data we present further validate the roles of the corresponding gene products in these processes, facilitating efforts to delineate gene function critical for genome replication, maintenance, and segregation.