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| | prfC | Peptide chain release factor 3; Increases the formation of ribosomal termination complexes and stimulates activities of RF-1 and RF-2. It binds guanine nucleotides and has strong preference for UGA stop codons. It may interact directly with the ribosome. The stimulation of RF-1 and RF-2 is significantly reduced by GTP and GDP, but not by GMP. Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. PrfC subfamily. (514 aa) |
| | efp | Translation elongation factor P; Involved in peptide bond synthesis. Stimulates efficient translation and peptide-bond synthesis on native or reconstituted 70S ribosomes in vitro. Probably functions indirectly by altering the affinity of the ribosome for aminoacyl-tRNA, thus increasing their reactivity as acceptors for peptidyl transferase. (186 aa) |
| | rpsI | SSU ribosomal protein S9p (S16e); Belongs to the universal ribosomal protein uS9 family. (130 aa) |
| | rplM | LSU ribosomal protein L13p (L13Ae); 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. (148 aa) |
| | tig | Cell division trigger factor; 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. (400 aa) |
| | fusA | Translation elongation factor G; 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 GTPase family. EF-G/EF-2 s [...] (378 aa) |
| | rpsG | SSU ribosomal protein S7p (S5e); 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 | SSU ribosomal protein S12p (S23e); Interacts with and stabilizes bases of the 16S rRNA that are involved in tRNA selection in the A site and with the mRNA backbone. Located at the interface of the 30S and 50S subunits, it traverses the body of the 30S subunit contacting proteins on the other side and probably holding the rRNA structure together. The combined cluster of proteins S8, S12 and S17 appears to hold together the shoulder and platform of the 30S subunit. (137 aa) |
| | rpmB | LSU ribosomal protein L28p; Belongs to the bacterial ribosomal protein bL28 family. (62 aa) |
| | ndk | Nucleoside diphosphate kinase; Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate; Belongs to the NDK family. (139 aa) |
| | rplQ | LSU ribosomal protein L17p. (128 aa) |
| | rpsK | SSU ribosomal protein S11p (S14e); 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. (127 aa) |
| | rpsM | SSU ribosomal protein S13p (S18e); 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. (121 aa) |
| | infA | Translation initiation factor 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) |
| | secY | Preprotein translocase secY subunit; 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. (327 aa) |
| | rplO | LSU ribosomal protein L15p (L27Ae); Binds to the 23S rRNA; Belongs to the universal ribosomal protein uL15 family. (146 aa) |
| | rpmD | LSU ribosomal protein L30p (L7e). (60 aa) |
| | rpsE | SSU ribosomal protein S5p (S2e); Located at the back of the 30S subunit body where it stabilizes the conformation of the head with respect to the body. Belongs to the universal ribosomal protein uS5 family. (164 aa) |
| | rplR | LSU ribosomal protein L18p (L5e); 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. (118 aa) |
| | rplF | LSU ribosomal protein L6p (L9e); 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. (178 aa) |
| | rpsH | SSU ribosomal protein S8p (S15Ae); 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. (132 aa) |
| | rpsZ | SSU ribosomal protein S14p (S29e), zinc-dependent; 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. (61 aa) |
| | rplE | LSU ribosomal protein L5p (L11e); 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. (180 aa) |
| | rplX | LSU ribosomal protein L24p (L26e); One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit. (101 aa) |
| | rplN | LSU ribosomal protein L14p (L23e); Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome; Belongs to the universal ribosomal protein uL14 family. (122 aa) |
| | rpsQ | SSU ribosomal protein S17p (S11e); One of the primary rRNA binding proteins, it binds specifically to the 5'-end of 16S ribosomal RNA. (86 aa) |
| | rpmC | LSU ribosomal protein L29p (L35e); Belongs to the universal ribosomal protein uL29 family. (68 aa) |
| | rplP | LSU ribosomal protein L16p (L10e); 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. (137 aa) |
| | rpsC | SSU ribosomal protein S3p (S3e); 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. (217 aa) |
| | rplV | LSU ribosomal protein L22p (L17e); The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome. (63 aa) |
| | rpsS | SSU ribosomal protein S19p (S15e); Protein S19 forms a complex with S13 that binds strongly to the 16S ribosomal RNA. (93 aa) |
| | rplB | LSU ribosomal protein L2p (L8e); 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. (277 aa) |
| | rplW | LSU ribosomal protein L23p (L23Ae); 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. (98 aa) |
| | rplD | LSU ribosomal protein L4p (L1e); Forms part of the polypeptide exit tunnel. (207 aa) |
| | rplC | LSU ribosomal protein L3p (L3e); 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; Belongs to the universal ribosomal protein uL3 family. (208 aa) |
| | rpsJ | SSU ribosomal protein S10p (S20e); Involved in the binding of tRNA to the ribosomes. Belongs to the universal ribosomal protein uS10 family. (102 aa) |
| | rplI | LSU ribosomal protein L9p; Binds to the 23S rRNA. (150 aa) |
| | raiA | Ribosomal subunit interface protein; Required for dimerization of active 70S ribosomes into 100S ribosomes in stationary phase; 100S ribosomes are translationally inactive and sometimes present during exponential growth. (180 aa) |
| | tsf | Translation elongation factor Ts; Associates with the EF-Tu.GDP complex and induces the exchange of GDP to GTP. It remains bound to the aminoacyl-tRNA.EF- Tu.GTP complex up to the GTP hydrolysis stage on the ribosome. Belongs to the EF-Ts family. (346 aa) |
| | rpsB | SSU ribosomal protein S2p (SAe); Belongs to the universal ribosomal protein uS2 family. (259 aa) |
| | ftsY | Signal recognition particle receptor protein FtsY, alpha subunit; Involved in targeting and insertion of nascent membrane proteins into the cytoplasmic membrane. Acts as a receptor for the complex formed by the signal recognition particle (SRP) and the ribosome-nascent chain (RNC). (287 aa) |
| | rpsO | SSU ribosomal protein S15p (S13e); Forms an intersubunit bridge (bridge B4) with the 23S rRNA of the 50S subunit in the ribosome. (89 aa) |
| | def | Peptide deformylase; Removes the formyl group from the N-terminal Met of newly synthesized proteins. Requires at least a dipeptide for an efficient rate of reaction. N-terminal L-methionine is a prerequisite for activity but the enzyme has broad specificity at other positions. (203 aa) |
| | rpsR | SSU ribosomal protein S18p, zinc-independent; 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. (79 aa) |
| | rpsF | SSU ribosomal protein S6p; Binds together with S18 to 16S ribosomal RNA. (96 aa) |
| | secA | Protein export cytoplasm protein SecA ATPase RNA helicase; Part of the Sec protein translocase complex. Interacts with the SecYEG preprotein conducting channel. Has a central role in coupling the hydrolysis of ATP to the transfer of proteins into and across the cell membrane, serving as an ATP-driven molecular motor driving the stepwise translocation of polypeptide chains across the membrane; Belongs to the SecA family. (837 aa) |
| | lepA | Translation elongation factor LepA; Required for accurate and efficient protein synthesis under certain stress conditions. May act as a fidelity factor of the translation reaction, by catalyzing a one-codon backward translocation of tRNAs on improperly translocated ribosomes. Back-translocation proceeds from a post-translocation (POST) complex to a pre- translocation (PRE) complex, thus giving elongation factor G a second chance to translocate the tRNAs correctly. Binds to ribosomes in a GTP- dependent manner. (607 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. (292 aa) |
| | rpsA_2 | SSU ribosomal protein S1p. (400 aa) |
| | secG | Preprotein translocase subunit SecG; Involved in protein export. Participates in an early event of protein translocation; Belongs to the SecG family. (77 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. (127 aa) |
| | rplA | LSU ribosomal protein L1p (L10Ae); Binds directly to 23S rRNA. The L1 stalk is quite mobile in the ribosome, and is involved in E site tRNA release. (229 aa) |
| | rplK | LSU ribosomal protein L11p (L12e); Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors. (141 aa) |
| | tuf | Translation elongation factor Tu; This protein promotes the GTP-dependent binding of aminoacyl- tRNA to the A-site of ribosomes during protein biosynthesis. (398 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. (188 aa) |
| | atpD | ATP synthase beta chain; Produces ATP from ADP in the presence of a proton gradient across the membrane. The catalytic sites are hosted primarily by the beta subunits. (468 aa) |
| | atpG | ATP synthase gamma chain; Produces ATP from ADP in the presence of a proton gradient across the membrane. The gamma chain is believed to be important in regulating ATPase activity and the flow of protons through the CF(0) complex. (292 aa) |
| | atpA | ATP synthase alpha chain; Produces ATP from ADP in the presence of a proton gradient across the membrane. The alpha chain is a regulatory subunit. (501 aa) |
| | atpH | ATP synthase delta chain; F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation. (178 aa) |
| | atpF | ATP synthase B chain; Component of the F(0) channel, it forms part of the peripheral stalk, linking F(1) to F(0); Belongs to the ATPase B chain family. (59 aa) |
| | atpB | ATP synthase A chain; Key component of the proton channel; it plays a direct role in the translocation of protons across the membrane. Belongs to the ATPase A chain family. (237 aa) |
| | atpE | ATP synthase C chain; F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation (By similarity). (66 aa) |
| | ffh | Signal recognition particle; Involved in targeting and insertion of nascent membrane proteins into the cytoplasmic membrane. Binds to the hydrophobic signal sequence of the ribosome-nascent chain (RNC) as it emerges from the ribosomes. The SRP-RNC complex is then targeted to the cytoplasmic membrane where it interacts with the SRP receptor FtsY. Belongs to the GTP-binding SRP family. SRP54 subfamily. (523 aa) |
| | rpsP | SSU ribosomal protein S16p; Belongs to the bacterial ribosomal protein bS16 family. (48 aa) |
| | RpsP | SSU ribosomal protein S16p. (40 aa) |
| | rimM | 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. (172 aa) |
| | trmD | tRNA (Guanine37-N1) -methyltransferase; Specifically methylates guanosine-37 in various tRNAs. Belongs to the RNA methyltransferase TrmD family. (240 aa) |
| | rpmH | LSU ribosomal protein L34p; Belongs to the bacterial ribosomal protein bL34 family. (44 aa) |
| | yidC | Inner membrane protein translocase component YidC; Required for the insertion and/or proper folding and/or complex formation of integral membrane proteins into the membrane. Involved in integration of membrane proteins that insert both dependently and independently of the Sec translocase complex, as well as at least some lipoproteins; Belongs to the OXA1/ALB3/YidC family. Type 2 subfamily. (277 aa) |
| | gltX | Glutamyl-tRNA synthetase / Glutamyl-tRNA(Gln) synthetase; Catalyzes the attachment of glutamate to tRNA(Glu) in a two- step reaction: glutamate is first activated by ATP to form Glu-AMP and then transferred to the acceptor end of tRNA(Glu); Belongs to the class-I aminoacyl-tRNA synthetase family. Glutamate--tRNA ligase type 1 subfamily. (486 aa) |
| | KXU13801.1 | COG1399 protein in cluster with ribosomal protein L32p, Firmicutes subfamily. (180 aa) |
| | rpmE2 | LSU ribosomal protein L31p, zinc-independent. (80 aa) |
| | KXU13727.1 | Hypothetical protein. (287 aa) |
| | rplS | LSU ribosomal protein L19p; 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. (115 aa) |
| | rpsD | SSU ribosomal protein S4p (S9e); One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the body of the 30S subunit. (203 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. (116 aa) |
| | infB | Translation initiation factor 2; 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. (155 aa) |
| | rplGA | Ribosomal protein L7Ae family protein. (99 aa) |
| | KXU13393.1 | Putative nucleic-acid-binding protein implicated in transcription termination; COG2740. (97 aa) |
| | nusA | Transcription termination protein NusA; Participates in both transcription termination and antitermination. (378 aa) |
| | rimP | Hypothetical protein; Required for maturation of 30S ribosomal subunits. Belongs to the RimP family. (175 aa) |
| | rpmA | LSU ribosomal protein L27p; Belongs to the bacterial ribosomal protein bL27 family. (97 aa) |
| | rplU | LSU ribosomal protein L21p; This protein binds to 23S rRNA in the presence of protein L20; Belongs to the bacterial ribosomal protein bL21 family. (104 aa) |
| | rplT | 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. (119 aa) |
| | rpmI | LSU ribosomal protein L35p; Belongs to the bacterial ribosomal protein bL35 family. (66 aa) |
| | infC | Translation 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. (185 aa) |
| | rplJ | LSU ribosomal protein L10p (P0); 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. (166 aa) |
| | rplL | LSU ribosomal protein L7/L12 (P1/P2); 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. (122 aa) |
| | secE | Preprotein translocase subunit SecE; 3.A.5.1.1; Belongs to the SecE/SEC61-gamma family. (58 aa) |
| | rpmF | LSU ribosomal protein L32p, zinc-independent; Belongs to the bacterial ribosomal protein bL32 family. (60 aa) |
| | rpmGA | LSU ribosomal protein L33p, zinc-independent; Belongs to the bacterial ribosomal protein bL33 family. (49 aa) |
| | rpsU | SSU ribosomal protein S21p; Belongs to the bacterial ribosomal protein bS21 family. (58 aa) |
| | rpsT | SSU ribosomal protein S20p; Binds directly to 16S ribosomal RNA. (77 aa) |
