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Full-Text Articles in Cell Biology

Yfmk Is A Novel Nε-Lysine Acetyltransferase That Directly Acetylates The Histone-Like Protein Hbsu In Bacillus Subtilis, Valerie J. Carabetta, Todd M. Greco, Ileana M. Cristea, David Dubnau May 2019

Yfmk Is A Novel Nε-Lysine Acetyltransferase That Directly Acetylates The Histone-Like Protein Hbsu In Bacillus Subtilis, Valerie J. Carabetta, Todd M. Greco, Ileana M. Cristea, David Dubnau

Stratford Campus Research Day

Recently, Ne-lysine acetylation was realized to be a prevalent bacterial post-translational modification (PTM), contrary to the historical notion that this was a rare occurrence. Acetylation can impact protein function in multiple ways, by modifying conformation, interactions, subcellular localization or activity. In bacteria, hundreds of proteins are known to be acetylated, including those involved essential processes such as DNA replication, nucleoid organization, translation, cell shape, central carbon metabolism, and even several virulence factors. Despite the growing recognition that numerous proteins are acetylated, the biological significance of the vast majority of these modifications in any bacteria remains largely unknown. Previously ...


Stationary Phase Mutagenesis In Bacillus Subtilis: The Interaction Between Transcription And Error-Prone Replication In Conditions Of Stress, Mary Girard, Eduardo Robleto Aug 2009

Stationary Phase Mutagenesis In Bacillus Subtilis: The Interaction Between Transcription And Error-Prone Replication In Conditions Of Stress, Mary Girard, Eduardo Robleto

Undergraduate Research Opportunities Program (UROP)

While under conditions of stress, non-dividing cells may acquire beneficial mutations. This is referred to as stationary phase mutagenesis, or adaptive mutagenesis. Previous research has shown that actively transcribed genes and those under selective pressure are prone to mutations that confer escape from non-dividing conditions. Accordingly, strains lacking transcription factors have shown a drastically lower number of mutations that confer escape while under amino acid starvation than those observed in the wildtype background. Also, error-prone DNA polymerases are known to be active in cells under stress and it has been shown that strains lacking an error-prone DNA polymerase display reduced ...