protein-L-isoaspartate O-methyltransferase; Catalyzes the methyl esterification of L-isoaspartyl residues in peptides and proteins that result from spontaneous decomposition of normal L-aspartyl and L-asparaginyl residues. It plays a role in the repair and/or degradation of damaged proteins.

N-acetylmuramoyl-L-alanine amidase.

RNA polymerase sigma subunit RpoS; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the master transcriptional regulator of the stationary phase and the general stress response.

Cell division protein FtsB homolog; Essential cell division protein. May link together the upstream cell division proteins, which are predominantly cytoplasmic, with the downstream cell division proteins, which are predominantly periplasmic.

RNA-binding protein Hfq; RNA chaperone that binds small regulatory RNA (sRNAs) and mRNAs to facilitate mRNA translational regulation in response to envelope stress, environmental stress and changes in metabolite concentrations. Also binds with high specificity to tRNAs. Belongs to the Hfq family.

RNA polymerase sigma-54 factor (sigma-N); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released.

Ribosome modulation factor; During stationary phase, converts 70S ribosomes to an inactive dimeric form (100S ribosomes); Belongs to the ribosome modulation factor family.

tRNA pseudouridine synthase D; Responsible for synthesis of pseudouridine from uracil-13 in transfer RNAs; Belongs to the pseudouridine synthase TruD family.