Probable integral membrane protein NMA1898.

GTP-binding protein TypA/BipA.

Ribosomal RNA small subunit methyltransferase B; Belongs to the class I-like SAM-binding methyltransferase superfamily. RsmB/NOP family.

23S rRNA (uracil-5-)-methyltransferase rumA; Catalyzes the formation of 5-methyl-uridine at position 1939 (m5U1939) in 23S rRNA; Belongs to the class I-like SAM-binding methyltransferase superfamily. RNA M5U methyltransferase family. RlmD subfamily.

Ribosomal RNA small subunit methyltransferase B; Belongs to the class I-like SAM-binding methyltransferase superfamily. RsmB/NOP family.

Cell division protein FtsJ; Specifically methylates the uridine in position 2552 of 23S rRNA at the 2'-O position of the ribose in the fully assembled 50S ribosomal subunit.

Ribosomal RNA small subunit methyltransferase B; Belongs to the class I-like SAM-binding methyltransferase superfamily. RsmB/NOP family.

Ribosomal RNA large subunit methyltransferase N; Specifically methylates position 2 of adenine 2503 in 23S rRNA and position 2 of adenine 37 in tRNAs. m2A2503 modification seems to play a crucial role in the proofreading step occurring at the peptidyl transferase center and thus would serve to optimize ribosomal fidelity; Belongs to the radical SAM superfamily. RlmN family.

Ribosomal RNA small subunit methyltransferase B; Belongs to the class I-like SAM-binding methyltransferase superfamily. RsmB/NOP family.

Iojap protein; Functions as a ribosomal silencing factor. Interacts with ribosomal protein L14 (rplN), blocking formation of intersubunit bridge B8. Prevents association of the 30S and 50S ribosomal subunits and the formation of functional ribosomes, thus repressing translation.

Ribosomal RNA small subunit methyltransferase D.

LSU m3Psi1915 methyltransferase RlmH ybeA; Specifically methylates the pseudouridine at position 1915 (m3Psi1915) in 23S rRNA; Belongs to the RNA methyltransferase RlmH family.

Ribosomal large subunit pseudouridine synthase C; Responsible for synthesis of pseudouridine from uracil. Belongs to the pseudouridine synthase RluA family.

GTP-binding protein Obg; An essential GTPase which binds GTP, GDP and possibly (p)ppGpp with moderate affinity, with high nucleotide exchange rates and a fairly low GTP hydrolysis rate. Plays a role in control of the cell cycle, stress response, ribosome biogenesis and in those bacteria that undergo differentiation, in morphogenesis control. Belongs to the TRAFAC class OBG-HflX-like GTPase superfamily. OBG GTPase family.

Ribosomal large subunit pseudouridine synthase C; Responsible for synthesis of pseudouridine from uracil. Belongs to the pseudouridine synthase RluA family.

23S rRNA (guanosine-2'-O-) -methyltransferase rlmB; Specifically methylates the ribose of guanosine 2251 in 23S rRNA.

Ribosomal large subunit pseudouridine synthase C; Responsible for synthesis of pseudouridine from uracil. Belongs to the pseudouridine synthase RluA family.

LSU ribosomal protein L20p; Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.

Ribosomal large subunit pseudouridine synthase C; Responsible for synthesis of pseudouridine from uracil. Belongs to the pseudouridine synthase RluA family.

Iojap protein; Functions as a ribosomal silencing factor. Interacts with ribosomal protein L14 (rplN), blocking formation of intersubunit bridge B8. Prevents association of the 30S and 50S ribosomal subunits and the formation of functional ribosomes, thus repressing translation.

COG1399 protein, clustered with ribosomal protein L32p.

16S rRNA processing protein RimM; An accessory protein needed during the final step in the assembly of 30S ribosomal subunit, possibly for assembly of the head region. Probably interacts with S19. Essential for efficient processing of 16S rRNA. May be needed both before and after RbfA during the maturation of 16S rRNA. It has affinity for free ribosomal 30S subunits but not for 70S ribosomes; Belongs to the RimM family.

COG1399 protein, clustered with ribosomal protein L32p.

LSU ribosomal protein L20p; Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.

tRNA pseudouridine synthase A; Belongs to the pseudouridine synthase RsuA family.

GTP-binding protein EngA; GTPase that plays an essential role in the late steps of ribosome biogenesis; Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. EngA (Der) GTPase family.

Macromolecule metabolism protein; Macromolecule synthesis, modification; dna - replication, repair, restr./modif.

Ribonuclease III; Digests double-stranded RNA. Involved in the processing of primary rRNA transcript to yield the immediate precursors to the large and small rRNAs (23S and 16S). Processes some mRNAs, and tRNAs when they are encoded in the rRNA operon. Processes pre-crRNA and tracrRNA of type II CRISPR loci if present in the organism.

Macromolecule metabolism protein; Macromolecule synthesis, modification; dna - replication, repair, restr./modif.

Ribonuclease PH; Phosphorolytic 3'-5' exoribonuclease that plays an important role in tRNA 3'-end maturation. Removes nucleotide residues following the 3'-CCA terminus of tRNAs; can also add nucleotides to the ends of RNA molecules by using nucleoside diphosphates as substrates, but this may not be physiologically important. Probably plays a role in initiation of 16S rRNA degradation (leading to ribosome degradation) during starvation.

Macromolecule metabolism protein; Macromolecule synthesis, modification; dna - replication, repair, restr./modif.

Dimethyladenosine transferase; Specifically dimethylates two adjacent adenosines (A1518 and A1519) in the loop of a conserved hairpin near the 3'-end of 16S rRNA in the 30S particle. May play a critical role in biogenesis of 30S subunits.

GTP-binding protein TypA/BipA.

Probable integral membrane protein NMA1898.

GTP-binding protein TypA/BipA.

Ribosomal large subunit pseudouridine synthase B; LSU Psi2605; Belongs to the pseudouridine synthase RsuA family.

GTP-binding protein TypA/BipA.

GTP-binding protein EngA; GTPase that plays an essential role in the late steps of ribosome biogenesis; Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. EngA (Der) GTPase family.

GTP-binding protein TypA/BipA.

Ribosome-binding factor A; One of several proteins that assist in the late maturation steps of the functional core of the 30S ribosomal subunit. Associates with free 30S ribosomal subunits (but not with 30S subunits that are part of 70S ribosomes or polysomes). Required for efficient processing of 16S rRNA. May interact with the 5'-terminal helix region of 16S rRNA.