Survival protein, protein damage control; Nucleotidase with a broad substrate specificity as it can dephosphorylate various ribo- and deoxyribonucleoside 5'-monophosphates and ribonucleoside 3'-monophosphates with highest affinity to 3'-AMP. Also hydrolyzes polyphosphate (exopolyphosphatase activity) with the preference for short-chain-length substrates (P20-25). Might be involved in the regulation of dNTP and NTP pools, and in the turnover of 3'-mononucleotides produced by numerous intracellular RNases (T1, T2, and F) during the degradation of various RNAs.

23S rRNA pseudouridylate 746 synthase; Dual specificity enzyme that catalyzes the synthesis of pseudouridine from uracil-746 in 23S ribosomal RNA and from uracil-32 in the anticodon stem and loop of transfer RNAs.

Pseudouridylate synthase I; Formation of pseudouridine at positions 38, 39 and 40 in the anticodon stem and loop of transfer RNAs.

16S rRNA pseudouridylate 516 synthase; Responsible for synthesis of pseudouridine from uracil-516 in 16S ribosomal RNA.

tRNA pseudouridine 5S synthase; Responsible for synthesis of pseudouridine from uracil-55 in the psi GC loop of transfer RNAs; Belongs to the pseudouridine synthase TruB family. Type 1 subfamily.

4-phosphocytidyl-2C-methyl-D-erythritol synthase; Catalyzes the formation of 4-diphosphocytidyl-2-C-methyl-D- erythritol from CTP and 2-C-methyl-D-erythritol 4-phosphate (MEP). Belongs to the IspD/TarI cytidylyltransferase family. IspD subfamily.

L-isoaspartate protein carboxylmethyltransferase type II; 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.

Putative Septum formation initiator; 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.