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| | tig | FKBP-type peptidyl-prolyl cis-trans isomerase (PPIase); Involved in protein export. Acts as a chaperone by maintaining the newly synthesized protein in an open conformation. Functions as a peptidyl-prolyl cis-trans isomerase; Belongs to the FKBP-type PPIase family. Tig subfamily. (439 aa) |
| | NE0061 | Sigma 54 modulation protein / S30EA ribosomal protein. (111 aa) |
| | rpsO | Ribosomal protein S15; One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it helps nucleate assembly of the platform of the 30S subunit by binding and bridging several RNA helices of the 16S rRNA. (89 aa) |
| | rplI | Ribosomal protein L9; Binds to the 23S rRNA. (151 aa) |
| | rpsR | Ribosomal protein S18; Binds as a heterodimer with protein S6 to the central domain of the 16S rRNA, where it helps stabilize the platform of the 30S subunit; Belongs to the bacterial ribosomal protein bS18 family. (92 aa) |
| | priB | Conserved hypothetical protein; Binds single-stranded DNA at the primosome assembly site (PAS); Belongs to the PriB family. (108 aa) |
| | rpsF | Ribosomal protein S6; Binds together with S18 to 16S ribosomal RNA. (146 aa) |
| | rpsU | Ribosomal protein S21; Belongs to the bacterial ribosomal protein bS21 family. (70 aa) |
| | map | Methionine aminopeptidase; Removes the N-terminal methionine from nascent proteins. The N-terminal methionine is often cleaved when the second residue in the primary sequence is small and uncharged (Met-Ala-, Cys, Gly, Pro, Ser, Thr, or Val). Requires deformylation of the N(alpha)-formylated initiator methionine before it can be hydrolyzed; Belongs to the peptidase M24A family. Methionine aminopeptidase type 1 subfamily. (272 aa) |
| | rpmH | Ribosomal protein L34; Belongs to the bacterial ribosomal protein bL34 family. (44 aa) |
| | tuf2 | GTPases-translation elongation factors and sulfate adenylate transferase subunit 1; This protein promotes the GTP-dependent binding of aminoacyl- tRNA to the A-site of ribosomes during protein biosynthesis. (396 aa) |
| | rpsJ | Ribosomal protein S10; Involved in the binding of tRNA to the ribosomes. Belongs to the universal ribosomal protein uS10 family. (102 aa) |
| | rplC | Ribosomal protein L3; One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit. (215 aa) |
| | rplD | Ribosomal protein L4/L1e; One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome. (206 aa) |
| | rplW | Ribosomal L23 protein; One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome; Belongs to the universal ribosomal protein uL23 family. (111 aa) |
| | rplB | Ribosomal protein L2; One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome. Belongs to the universal ribosomal protein uL2 family. (278 aa) |
| | rpsS | Ribosomal protein S19; Protein S19 forms a complex with S13 that binds strongly to the 16S ribosomal RNA. (94 aa) |
| | rplV | Ribosomal protein L22p / L17e; This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g. L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome (By similarity). (110 aa) |
| | rpsC | Ribosomal protein S3:Type 2 KH domain:KH domain; Binds the lower part of the 30S subunit head. Binds mRNA in the 70S ribosome, positioning it for translation; Belongs to the universal ribosomal protein uS3 family. (215 aa) |
| | rplP | Ribosomal protein L16; Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs; Belongs to the universal ribosomal protein uL16 family. (138 aa) |
| | rpmC | Ribosomal protein L29; Belongs to the universal ribosomal protein uL29 family. (64 aa) |
| | rpsQ | Ribosomal protein S17; One of the primary rRNA binding proteins, it binds specifically to the 5'-end of 16S ribosomal RNA. (84 aa) |
| | rplN | Ribosomal protein L14b/L23e family; Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome; Belongs to the universal ribosomal protein uL14 family. (122 aa) |
| | rplX | Ribosomal protein L24/bacterial NUSG:Ribosomal protein L24; One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit. (105 aa) |
| | rplE | Ribosomal protein L5:Mitochondrial ribosomal protein L5; This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs. (179 aa) |
| | rpsN | Ribosomal protein S14; Binds 16S rRNA, required for the assembly of 30S particles and may also be responsible for determining the conformation of the 16S rRNA at the A site; Belongs to the universal ribosomal protein uS14 family. (101 aa) |
| | rpsH | Ribosomal protein S8; One of the primary rRNA binding proteins, it binds directly to 16S rRNA central domain where it helps coordinate assembly of the platform of the 30S subunit; Belongs to the universal ribosomal protein uS8 family. (131 aa) |
| | rplF | Ribosomal protein L6; This protein binds to the 23S rRNA, and 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; Belongs to the universal ribosomal protein uL6 family. (180 aa) |
| | rplR | Ribosomal protein L18P/L5E:Ribosomal protein L18; This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. (119 aa) |
| | rpsE | Ribosomal protein S5; With S4 and S12 plays an important role in translational accuracy; Belongs to the universal ribosomal protein uS5 family. (177 aa) |
| | rpmD | Ribosomal protein L30. (61 aa) |
| | rplO | Ribosomal protein L15; Binds to the 23S rRNA; Belongs to the universal ribosomal protein uL15 family. (153 aa) |
| | secY | SecY protein; The central subunit of the protein translocation channel SecYEG. Consists of two halves formed by TMs 1-5 and 6-10. These two domains form a lateral gate at the front which open onto the bilayer between TMs 2 and 7, and are clamped together by SecE at the back. The channel is closed by both a pore ring composed of hydrophobic SecY resides and a short helix (helix 2A) on the extracellular side of the membrane which forms a plug. The plug probably moves laterally to allow the channel to open. The ring and the pore may move independently. (441 aa) |
| | infA | S1 RNA binding domain: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. (72 aa) |
| | rpsM | Ribosomal protein S13; Located at the top of the head of the 30S subunit, it contacts several helices of the 16S rRNA. In the 70S ribosome it contacts the 23S rRNA (bridge B1a) and protein L5 of the 50S subunit (bridge B1b), connecting the 2 subunits; these bridges are implicated in subunit movement. Contacts the tRNAs in the A and P-sites. Belongs to the universal ribosomal protein uS13 family. (119 aa) |
| | rpsK | Ribosomal protein S11; Located on the platform of the 30S subunit, it bridges several disparate RNA helices of the 16S rRNA. Forms part of the Shine- Dalgarno cleft in the 70S ribosome; Belongs to the universal ribosomal protein uS11 family. (129 aa) |
| | rpsD | Ribosomal protein S4:S4 domain; One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the body of the 30S subunit. (208 aa) |
| | rplQ | Ribosomal protein L17. (130 aa) |
| | smpB | SmpB protein; Required for rescue of stalled ribosomes mediated by trans- translation. Binds to transfer-messenger RNA (tmRNA), required for stable association of tmRNA with ribosomes. tmRNA and SmpB together mimic tRNA shape, replacing the anticodon stem-loop with SmpB. tmRNA is encoded by the ssrA gene; the 2 termini fold to resemble tRNA(Ala) and it encodes a 'tag peptide', a short internal open reading frame. During trans-translation Ala-aminoacylated tmRNA acts like a tRNA, entering the A-site of stalled ribosomes, displacing the stalled mRNA. The ribosome then switches to transla [...] (151 aa) |
| | rfaH | Putative transcriptional activator; Enhances distal genes transcription elongation in a specialized subset of operons that encode extracytoplasmic components. Belongs to the RfaH family. (165 aa) |
| | rimP | DUF150; Required for maturation of 30S ribosomal subunits. Belongs to the RimP family. (143 aa) |
| | nusA | S1 RNA binding domain:KH domain:Type 1 KH domain; Participates in both transcription termination and antitermination. (490 aa) |
| | infB | Putative translation initiation factor protein; One of the essential components for the initiation of protein synthesis. Protects formylmethionyl-tRNA from spontaneous hydrolysis and promotes its binding to the 30S ribosomal subunits. Also involved in the hydrolysis of GTP during the formation of the 70S ribosomal complex; Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. IF-2 subfamily. (889 aa) |
| | rbfA | 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. (117 aa) |
| | truB | tRNA pseudouridine synthase B; 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. (308 aa) |
| | rplT | Ribosomal protein L20; 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. (119 aa) |
| | rpmI | Ribosomal protein L35; Belongs to the bacterial ribosomal protein bL35 family. (65 aa) |
| | infC | Initiation factor 3; 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. (164 aa) |
| | rpmE,rpL31 | Ribosomal protein L31; Binds the 23S rRNA. (74 aa) |
| | prfB | Peptide chain release factor 2; Peptide chain release factor 2 directs the termination of translation in response to the peptide chain termination codons UGA and UAA. (347 aa) |
| | rpmA | Ribosomal protein L27; Belongs to the bacterial ribosomal protein bL27 family. (85 aa) |
| | rplU | Ribosomal protein L21; This protein binds to 23S rRNA in the presence of protein L20; Belongs to the bacterial ribosomal protein bL21 family. (103 aa) |
| | rpmB | Ribosomal protein L28; Belongs to the bacterial ribosomal protein bL28 family. (78 aa) |
| | rpmG | Ribosomal protein L33; Belongs to the bacterial ribosomal protein bL33 family. (51 aa) |
| | rpsI | Ribosomal protein S9; Belongs to the universal ribosomal protein uS9 family. (130 aa) |
| | rplM | Ribosomal 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. (144 aa) |
| | NE1643 | Conserved hypothetical protein; COGs COG1399. (168 aa) |
| | rpmF | Probable 50S ribosomal subunit protein L32; Belongs to the bacterial ribosomal protein bL32 family. (60 aa) |
| | rpsP | Ribosomal protein S16; Belongs to the bacterial ribosomal protein bS16 family. (89 aa) |
| | rimM | 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. (169 aa) |
| | trmB | tRNA (guanine-N1-)-methyltransferase; Specifically methylates guanosine-37 in various tRNAs. Belongs to the RNA methyltransferase TrmD family. (270 aa) |
| | rplS | Ribosomal protein L19; This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site. (132 aa) |
| | rpsB | Ribosomal protein S2; Belongs to the universal ribosomal protein uS2 family. (251 aa) |
| | rplY | Ribosomal 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. Belongs to the bacterial ribosomal protein bL25 family. CTC subfamily. (198 aa) |
| | rpsA | Ribosomal protein S1:S1 RNA binding domain; Binds mRNA; thus facilitating recognition of the initiation point. It is needed to translate mRNA with a short Shine-Dalgarno (SD) purine-rich sequence. (572 aa) |
| | rplL | Ribosomal protein L7/L12 C-terminal domain; Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors. Is thus essential for accurate translation; Belongs to the bacterial ribosomal protein bL12 family. (124 aa) |
| | rplJ | Ribosomal protein L10; Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors. Belongs to the universal ribosomal protein uL10 family. (171 aa) |
| | rplA | Ribosomal protein L1; Binds directly to 23S rRNA. The L1 stalk is quite mobile in the ribosome, and is involved in E site tRNA release. (234 aa) |
| | rplK | Ribosomal protein L11; Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors. (143 aa) |
| | tuf2-2 | GTPases-translation elongation factors and sulfate adenylate transferase subunit 1. (396 aa) |
| | fusA1 | Translation elongation and release factors (GTPases); Catalyzes the GTP-dependent ribosomal translocation step during translation elongation. During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively. Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome; Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPas [...] (696 aa) |
| | rpsG | Ribosomal protein S7; One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the head domain of the 30S subunit. Is located at the subunit interface close to the decoding center, probably blocks exit of the E-site tRNA; Belongs to the universal ribosomal protein uS7 family. (156 aa) |
| | rpsL | Ribosomal protein S12; With S4 and S5 plays an important role in translational accuracy. (125 aa) |
| | rps4 | Ribosomal protein S4:S4 domain; One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the body of the 30S subunit. (205 aa) |
| | rpsT | Ribosomal protein S20; Binds directly to 16S ribosomal RNA. (87 aa) |
| | lysS | lysS; putative lysyl-tRNA synthetase protein; Belongs to the class-II aminoacyl-tRNA synthetase family. (502 aa) |
