Publications by authors named "Shira Omer"

Arbitrium-coding phages use peptides to communicate and coordinate the decision between lysis and lysogeny. However, the mechanism by which these phages establish lysogeny remains unknown. Here, focusing on the SPbeta phage family's model phages phi3T and SPβ, we report that a six-gene operon called the "SPbeta phages repressor operon" (sro) expresses not one but two master repressors, SroE and SroF, the latter of which folds like a classical phage integrase.

View Article and Find Full Text PDF

Lateral gene transfer (LGT) is a central force in microbial evolution. The observation that genes encoding subunits of complexes exhibit relatively compatible phylogenies, suggesting vertical descent, can be explained by different evolutionary scenarios. On the one hand, the failure of a new gene product to correctly interact with preexisting protein subunits can make its acquisition neutral-a theory termed the "complexity hypothesis.

View Article and Find Full Text PDF