Putative membrane associate hydrolase; Probably has phosphodiesterase (PDE) activity against cyclic- di-AMP (c-di-AMP); may be the major c-di-AMP PDE in the cell. In B.subtilis c-di-AMP is a second messenger that mediates growth, DNA repair and cell wall homeostasis; it is toxic when present in excess.

Putative enzyme with DAC domain protein; One of 3 paralogous diadenylate cyclases (DAC) in this bacteria, catalyzing the condensation of 2 ATP molecules into cyclic di-AMP (c-di-AMP) (Probable). Upon expression in E.coli leads to c-di- AMP synthesis. Probably the main producer of c-di-AMP for the cell; is probably implicated in control of peptidogylcan synthesis. In B.subtilis c-di-AMP is a second messenger that mediates growth, DNA repair and cell wall homeostasis; it is toxic when present in excess.

Conserved hypothetical protein; Upon coexpression in E.coli stimulates the diadenylate cyclase activity of CdaA about 20-fold. In B.subtilis c-di-AMP is a second messenger that mediates growth, DNA repair and cell wall homeostasis; it is toxic when present in excess.

Putative enzyme with DAC domain; One of 3 paralogous diadenylate cyclases (DAC) in this bacteria, catalyzing the condensation of 2 ATP molecules into cyclic di-AMP (c-di-AMP) (Probable). Upon expression in E.coli leads to c-di- AMP synthesis. Overexpression of the hyperactive mutant (L44F) in the absence of c-di-AMP phosphodiesterase GdpP leads to growth defects in log phase (long curly cell filaments) that disappear upon sporulation; spore formation is normal, showing sporulation is insensitive to the excess c-di-AMP. In B.subtilis c-di-AMP is a second messenger that mediates growth, [...]

Putative integral inner membrane protein; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pm: putative membrane component.

Putative phosphodiesterase; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

Oligoribonuclease (nanoRNAse), 3',5'-bisphosphate nucleotidase; Bifunctional enzyme which has both oligoribonuclease and pAp- phosphatase activities. Degrades RNA and DNA oligonucleotides with a length of 5 nucleotides and shorter, with a preference for 3-mers. Directionality is controversial; shown to degrade 5-mers and less in a 3' to 5' direction , and 11-mers in a 5' to 3' direction. Converts 3'(2')-phosphoadenosine 5'- phosphate (PAP) to AMP.

Potassium uptake protein; Catalytic subunit of the KtrAB potassium uptake transporter. The 2 major potassium transporter complexes KtrAB and KtrCD confer resistance to both suddenly imposed and prolonged osmotic stress.

Phosphoglucosamine mutase; Catalyzes the conversion of glucosamine-6-phosphate to glucosamine-1-phosphate (By similarity). Glucosamine-1-phosphate is used for cell wall biosynthesis (Probable); Belongs to the phosphohexose mutase family.