Penicillin-binding protein; This protein is a serine beta-lactamase with a substrate specificity for cephalosporins; Belongs to the class-C beta-lactamase family.

7,8-dihydropteroate synthase; Catalyzes the condensation of para-aminobenzoate (pABA) with 6-hydroxymethyl-7,8-dihydropterin diphosphate (DHPt-PP) to form 7,8- dihydropteroate (H2Pte), the immediate precursor of folate derivatives. Belongs to the DHPS family.

Penicillin-binding protein; This protein is a serine beta-lactamase with a substrate specificity for cephalosporins; Belongs to the class-C beta-lactamase family.

DNA gyrase, subunit B; DNA gyrase negatively supercoils closed circular double- stranded DNA in an ATP-dependent manner to maintain chromosomes in an underwound state. This makes better substrates for topoisomerase 4 (ParC and ParE) which is the main enzyme that unlinks newly replicated chromosomes in E.coli. Gyrase catalyzes the interconversion of other topological isomers of double-stranded DNA rings, including catenanes. Relaxes negatively supercoiled DNA in an ATP-independent manner. E.coli gyrase has higher supercoiling activity than other characterized bacterial gyrases; at compa [...]

Penicillin-binding protein; This protein is a serine beta-lactamase with a substrate specificity for cephalosporins; Belongs to the class-C beta-lactamase family.

DNA recombination and repair protein; Required for homologous recombination and the bypass of mutagenic DNA lesions by the SOS response. Catalyzes ATP-driven homologous pairing and strand exchange of DNA molecules necessary for DNA recombinational repair. Catalyzes the hydrolysis of ATP in the presence of single-stranded DNA, the ATP-dependent uptake of single- stranded DNA by duplex DNA, and the ATP-dependent hybridization of homologous single-stranded DNAs. The SOS response controls an apoptotic-like death (ALD) induced (in the absence of the mazE-mazF toxin-antitoxin module) in resp [...]

Bacterioferritin-associated ferredoxin; Seems to associate with BFR; could be a general redox and/or regulatory component participating in the iron storage mobilization functions of BFR. Could participate in the release or the delivery of iron from/to bacterioferritin (or other iron complexes).

Ferritin iron storage protein (cytoplasmic); Iron-storage protein; Belongs to the ferritin family. Prokaryotic subfamily.

Bacterioferritin-associated ferredoxin; Seems to associate with BFR; could be a general redox and/or regulatory component participating in the iron storage mobilization functions of BFR. Could participate in the release or the delivery of iron from/to bacterioferritin (or other iron complexes).

Isc operon transcriptional repressor; Regulates the transcription of several operons and genes involved in the biogenesis of Fe-S clusters and Fe-S-containing proteins. Transcriptional repressor of the iscRSUA operon, which is involved in the assembly of Fe-S clusters into Fe-S proteins. In its apoform, under conditions of oxidative stress or iron deprivation, it activates the suf operon, which is a second operon involved in the assembly of Fe-S clusters. Represses its own transcription as well as that of toxin rnlA.

Iron-dependent inhibitor of iron-sulfur cluster formation; Involved in iron-sulfur (Fe-S) cluster assembly. May act as a regulator of Fe-S biogenesis. Can bind both Fe(2+) and Fe(3+) ions. In vivo, has a positive effect on Fe-S cluster biogenesis under iron- rich growth conditions. In vitro, can inhibit IscS cysteine desulfurase activity and the formation of Fe-S clusters on IscU. In vitro, in the presence of IscS and cysteine, Fe(3+)-CyaY can be used as an iron donor during Fe-S cluster assembly on the scaffold protein IscU.

DnaK-like molecular chaperone specific for IscU; Chaperone involved in the maturation of iron-sulfur cluster- containing proteins. Has a low intrinsic ATPase activity which is markedly stimulated by HscB. Involved in the maturation of IscU; Belongs to the heat shock protein 70 family.

Iron-dependent inhibitor of iron-sulfur cluster formation; Involved in iron-sulfur (Fe-S) cluster assembly. May act as a regulator of Fe-S biogenesis. Can bind both Fe(2+) and Fe(3+) ions. In vivo, has a positive effect on Fe-S cluster biogenesis under iron- rich growth conditions. In vitro, can inhibit IscS cysteine desulfurase activity and the formation of Fe-S clusters on IscU. In vitro, in the presence of IscS and cysteine, Fe(3+)-CyaY can be used as an iron donor during Fe-S cluster assembly on the scaffold protein IscU.

HscA co-chaperone, J domain-containing protein Hsc56; Co-chaperone involved in the maturation of iron-sulfur cluster-containing proteins. Seems to help targeting proteins to be folded toward HscA; Belongs to the HscB family.

Iron-dependent inhibitor of iron-sulfur cluster formation; Involved in iron-sulfur (Fe-S) cluster assembly. May act as a regulator of Fe-S biogenesis. Can bind both Fe(2+) and Fe(3+) ions. In vivo, has a positive effect on Fe-S cluster biogenesis under iron- rich growth conditions. In vitro, can inhibit IscS cysteine desulfurase activity and the formation of Fe-S clusters on IscU. In vitro, in the presence of IscS and cysteine, Fe(3+)-CyaY can be used as an iron donor during Fe-S cluster assembly on the scaffold protein IscU.

Isc operon transcriptional repressor; Regulates the transcription of several operons and genes involved in the biogenesis of Fe-S clusters and Fe-S-containing proteins. Transcriptional repressor of the iscRSUA operon, which is involved in the assembly of Fe-S clusters into Fe-S proteins. In its apoform, under conditions of oxidative stress or iron deprivation, it activates the suf operon, which is a second operon involved in the assembly of Fe-S clusters. Represses its own transcription as well as that of toxin rnlA.

Iron-dependent inhibitor of iron-sulfur cluster formation; Involved in iron-sulfur (Fe-S) cluster assembly. May act as a regulator of Fe-S biogenesis. Can bind both Fe(2+) and Fe(3+) ions. In vivo, has a positive effect on Fe-S cluster biogenesis under iron- rich growth conditions. In vitro, can inhibit IscS cysteine desulfurase activity and the formation of Fe-S clusters on IscU. In vitro, in the presence of IscS and cysteine, Fe(3+)-CyaY can be used as an iron donor during Fe-S cluster assembly on the scaffold protein IscU.

Fe(2+) donor and activity modulator for cysteine desulfurase; May function as iron donor in the assembly of iron-sulfur clusters; Belongs to the IscX family.

Iron-dependent inhibitor of iron-sulfur cluster formation; Involved in iron-sulfur (Fe-S) cluster assembly. May act as a regulator of Fe-S biogenesis. Can bind both Fe(2+) and Fe(3+) ions. In vivo, has a positive effect on Fe-S cluster biogenesis under iron- rich growth conditions. In vitro, can inhibit IscS cysteine desulfurase activity and the formation of Fe-S clusters on IscU. In vitro, in the presence of IscS and cysteine, Fe(3+)-CyaY can be used as an iron donor during Fe-S cluster assembly on the scaffold protein IscU.

30S ribosomal subunit protein S9; The C-terminal tail plays a role in the affinity of the 30S P site for different tRNAs. Mutations that decrease this affinity are suppressed in the 70S ribosome.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

Translation initiation factor IF-1; One of the essential components for the initiation of protein synthesis. Binds in the vicinity of the A-site. 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.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

Translation initiation factor IF-3; One of the essential components for the initiation of protein synthesis.IF-3 binds to the 30S ribosomal subunit and shifts the equilibrum between 70S ribosomes and their 50S and 30S subunits in favor of the free subunits, thus enhancing the availability of 30S subunits on which protein synthesis initiation begins.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

Uridylate kinase; Catalyzes the reversible phosphorylation of UMP to UDP, with ATP as the most efficient phosphate donor.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

DNA recombination and repair protein; Required for homologous recombination and the bypass of mutagenic DNA lesions by the SOS response. Catalyzes ATP-driven homologous pairing and strand exchange of DNA molecules necessary for DNA recombinational repair. Catalyzes the hydrolysis of ATP in the presence of single-stranded DNA, the ATP-dependent uptake of single- stranded DNA by duplex DNA, and the ATP-dependent hybridization of homologous single-stranded DNAs. The SOS response controls an apoptotic-like death (ALD) induced (in the absence of the mazE-mazF toxin-antitoxin module) in resp [...]

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

Transcription termination factor; Facilitates transcription termination by a mechanism that involves Rho binding to the nascent RNA, activation of Rho's RNA- dependent ATPase activity, and release of the mRNA from the DNA template. RNA-dependent NTPase which utilizes all four ribonucleoside triphosphates as substrates.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

50S ribosomal subunit protein L6; This protein binds directly to at least 2 domains of the 23S ribosomal RNA, thus is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

50S ribosomal subunit protein L13; This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

50S ribosomal subunit protein L19; This protein is located at the 30S-50S ribosomal subunit interface. In the 70S ribosome it has been modeled to make two contacts with the 16S rRNA of the 30S subunit forming part of bridges B6 and B8. In the 3.5 A resolved structures L14 and L19 interact and together make contact with the 16S rRNA. The protein conformation is quite different between the 50S and 70S structures, which may be necessary for translocation.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

50S ribosomal subunit protein L25; This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance. Binds to the 5S rRNA independently of L5 and L18. Not required for binding of the 5S rRNA/L5/L18 subcomplex to 23S rRNA.

Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]

50S ribosomal subunit protein L32; Protein involved in structural constituent of ribosome and translation.