Bis(5-nucleosyl)-tetraphosphatase; [T] COG0639 Diadenosine tetraphosphatase and related serine/threonine protein phosphatases.

Chaperone protein HtpG; Molecular chaperone. Has ATPase activity.

Conserved hypothetical protein.

Lipopolysaccharide kinase (Kdo/WaaP) family protein; [K] COG5665 CCR4-NOT transcriptional regulation complex, NOT5 subunit.

Fe-S protein assembly chaperone HscA; Chaperone involved in the maturation of iron-sulfur cluster- containing proteins. Has a low intrinsic ATPase activity which is markedly stimulated by HscB.

Chaperone protein DnaK; Acts as a chaperone; Belongs to the heat shock protein 70 family.

Queuine tRNA-ribosyltransferase; Catalyzes the base-exchange of a guanine (G) residue with the queuine precursor 7-aminomethyl-7-deazaguanine (PreQ1) at position 34 (anticodon wobble position) in tRNAs with GU(N) anticodons (tRNA-Asp, - Asn, -His and -Tyr). Catalysis occurs through a double-displacement mechanism. The nucleophile active site attacks the C1' of nucleotide 34 to detach the guanine base from the RNA, forming a covalent enzyme-RNA intermediate. The proton acceptor active site deprotonates the incoming PreQ1, allowing a nucleophilic attack on the C1' of the ribose to form t [...]

[L] COG0389 Nucleotidyltransferase/DNA polymerase involved in DNA repair.

Translation initiation factor IF-1; One of the essential components for the initiation of protein synthesis. Stabilizes the binding of IF-2 and IF-3 on the 30S subunit to which N-formylmethionyl-tRNA(fMet) subsequently binds. Helps modulate mRNA selection, yielding the 30S pre-initiation complex (PIC). Upon addition of the 50S ribosomal subunit IF-1, IF-2 and IF-3 are released leaving the mature 70S translation initiation complex.