STRINGSTRING
rnr rnr dnaE dnaE ybbJ ybbJ cspE cspE rimO rimO cspD cspD infA infA rpsA rpsA asnS asnS cspH cspH cspG cspG rne rne rnb rnb cspI cspI cspB cspB cspF cspF pheT pheT cspC cspC ruvA ruvA aspS aspS metG metG yeiP yeiP ccmE ccmE ligA ligA recO recO rlmD rlmD lysS lysS ygjH ygjH pnp pnp nusA nusA rng rng rpsQ rpsQ rplB rplB rpsL rpsL yhgF yhgF ugpC ugpC cspA cspA ligB ligB priB priB recG recG rho rho malK malK ssb ssb lysU lysU efp efp rsgA rsgA
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
rnrExoribonuclease R, RNase R; 3'-5' exoribonuclease that releases 5'-nucleoside monophosphates and is involved in maturation of structured RNAs (rRNAs, tRNAs and SsrA/tmRNA). In stationary phase, involved in the post- transcriptional regulation of ompA mRNA stability. Shortens RNA processively to di- and trinucleotides. In vitro, exhibits helicase activity, which is independent of its RNase activity. RNases 2 and R (rnb and this entry) contribute to rRNA degradation during starvation, while RNase R and PNPase (this entry and pnp) are the major contributors to quality control of rRNA duri [...] (813 aa)
dnaEDNA polymerase III alpha subunit; DNA polymerase III is a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria. This DNA polymerase also exhibits 3' to 5' exonuclease activity. The alpha chain is the DNA polymerase catalytic subunit. It is tethered to replicating DNA by the beta sliding clamp (dnaN), which confers extremely high processivity to the catalytic subunit, copying a 5.4 kb genome in 11 seconds, a speed of at least 500 nucleotides/second at 30 degrees Celsius. (1160 aa)
ybbJInner membrane protein; stimulator of the QmcA suppressor of ftsH-htpX. (152 aa)
cspECold shock protein; Protein involved in transcription activator activity, transcription and response to temperature stimulus. (69 aa)
rimORibosomal protein S12 methylthiotransferase; Catalyzes the methylthiolation of the residue Asp-89 of ribosomal protein S12. (441 aa)
cspDInhibitor of DNA replication, cold shock protein homolog; Inhibits DNA replication at both initiation and elongation steps, most probably by binding to the opened, single-stranded regions at replication forks. Plays a regulatory role in chromosomal replication in nutrient-depleted cells. (74 aa)
infATranslation 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. (72 aa)
rpsA30S ribosomal subunit protein S1; Required for translation of most natural mRNAs except for leaderless mRNA. Binds mRNA upstream of the Shine- Dalgarno (SD) sequence and helps it bind to the 30S ribosomal subunit; acts as an RNA chaperone to unfold structured mRNA on the ribosome but is not essential for mRNAs with strong SDs and little 5'-UTR structure, thus it may help fine-tune which mRNAs that are translated. Unwinds dsRNA by binding to transiently formed ssRNA regions; binds about 10 nucleotides. Has a preference for polypyrimidine tracts. Negatively autoregulates its own translat [...] (557 aa)
asnSAsparagine tRNA synthetase; Protein involved in tRNA aminoacylation for protein translation. (466 aa)
cspHStress protein, member of the CspA-family; Cold shock-like protein; Protein involved in response to temperature stimulus. (70 aa)
cspGHomolog of Salmonella cold shock protein; Protein involved in response to temperature stimulus. (70 aa)
rneEndoribonuclease; Endoribonuclease that plays a central role in RNA processing and decay. Required for the maturation of 5S and 16S rRNAs and the majority of tRNAs. Also involved in the degradation of most mRNAs. Can also process other RNA species, such as RNAI, a molecule that controls the replication of ColE1 plasmid, and the cell division inhibitor DicF- RNA. It initiates the decay of RNAs by cutting them internally near their 5'-end. It is able to remove poly(A) tails by an endonucleolytic process. Required to initiate rRNA degradation during both starvation and quality control; ac [...] (1061 aa)
rnbRibonuclease II; Involved in mRNA degradation. Hydrolyzes single-stranded polyribonucleotides processively in the 3' to 5' direction. RNases 2 and R (rnr) contribute to rRNA degradation during starvation, while RNase R and PNPase (pnp) are the major contributors to quality control of rRNA during steady state growth. This RNase is required to decrease expression of RNase PH (rnp) at 42 degrees Celsius during starvation, which in turn represses rRNA degradation. Belongs to the RNR ribonuclease family. RNase II subfamily. (644 aa)
cspIQin prophage; Cold shock-like protein. (70 aa)
cspBQin prophage; cold shock protein. (71 aa)
cspFQin prophage; cold shock protein. (70 aa)
pheTPhenylalanine tRNA synthetase, beta-subunit; Protein involved in tRNA aminoacylation for protein translation. (795 aa)
cspCStress protein, member of the CspA-family; Cold shock protein; Protein involved in transcription activator activity, transcription and response to temperature stimulus. (69 aa)
ruvAComponent of RuvABC resolvasome, regulatory subunit; The RuvA-RuvB complex in the presence of ATP renatures cruciform structure in supercoiled DNA with palindromic sequence, indicating that it may promote strand exchange reactions in homologous recombination. RuvAB is a helicase that mediates the Holliday junction migration by localized denaturation and reannealing. RuvA stimulates, in the presence of DNA, the weak ATPase activity of RuvB. Binds both single- and double-stranded DNA (dsDNA). Binds preferentially to supercoiled rather than to relaxed dsDNA. (203 aa)
aspSaspartyl-tRNA synthetase; Catalyzes the attachment of L-aspartate to tRNA(Asp) in a two-step reaction: L-aspartate is first activated by ATP to form Asp- AMP and then transferred to the acceptor end of tRNA(Asp). Also mischarges tRNA(Asp) with D-aspartate, although it is a poor substrate ; Belongs to the class-II aminoacyl-tRNA synthetase family. Type 1 subfamily. (590 aa)
metGmethionyl-tRNA synthetase; Is required not only for elongation of protein synthesis but also for the initiation of all mRNA translation through initiator tRNA(fMet) aminoacylation; Belongs to the class-I aminoacyl-tRNA synthetase family. MetG type 1 subfamily. (677 aa)
yeiPPutative elongation factor; Protein involved in translation. (190 aa)
ccmEPeriplasmic heme chaperone; Heme chaperone required for the biogenesis of c-type cytochromes. Transiently binds heme delivered by CcmC and transfers the heme to apo-cytochromes in a process facilitated by CcmF and CcmH; Belongs to the CcmE/CycJ family. (159 aa)
ligADNA ligase, NAD(+)-dependent; DNA ligase that catalyzes the formation of phosphodiester linkages between 5'-phosphoryl and 3'-hydroxyl groups in double- stranded DNA using NAD as a coenzyme and as the energy source for the reaction. It is essential for DNA replication and repair of damaged DNA; Belongs to the NAD-dependent DNA ligase family. LigA subfamily. (671 aa)
recOGap repair protein; Involved in DNA repair and RecF pathway recombination; Belongs to the RecO family. (242 aa)
rlmD23S rRNA m(5)U1939 methyltransferase, SAM-dependent; 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. (433 aa)
lysSLysine tRNA synthetase, constitutive; suppressor of ColE1 mutation in primer RNA; Protein involved in tRNA aminoacylation for protein translation; Belongs to the class-II aminoacyl-tRNA synthetase family. (505 aa)
ygjHPutative tRNA synthetase; Protein involved in tRNA aminoacylation for protein translation. (110 aa)
pnpPolynucleotide phosphorylase/polyadenylase; Involved in mRNA degradation. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'- to 5'- direction. Also involved, along with RNase II, in tRNA processing. RNases II and R contribute to rRNA degradation during starvation, while RNase R and PNPase are the major contributors to quality control of rRNA during steady state growth. (711 aa)
nusATranscription termination/antitermination L factor; Participates in both transcription termination and antitermination. Involved in a variety of cellular and viral termination and antitermination processes, such as Rho-dependent transcriptional termination, intrinsic termination, and phage lambda N- mediated transcriptional antitermination. Also important for coordinating the cellular responses to DNA damage by coupling the processes of nucleotide excision repair and translesion synthesis to transcription. (495 aa)
rngRibonuclease G; Involved in the processing of the 5'-end of 16S rRNA. Could be involved in chromosome segregation and cell division. It may be one of the components of the cytoplasmic axial filaments bundles or merely regulate the formation of this structure. Belongs to the RNase E/G family. RNase G subfamily. (489 aa)
rpsQ30S ribosomal subunit protein S17; One of the primary rRNA binding proteins, it binds specifically to the 5'-end of 16S ribosomal RNA. Also plays a role in translational accuracy; neamine-resistant ribosomes show reduced neamine-induced misreading in vitro. (84 aa)
rplB50S ribosomal subunit protein L2; One of the primary rRNA binding proteins. Located near the base of the L1 stalk, it is probably also mobile. 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 highly controversial. Belongs to the universal ribosomal protein uL2 family. (273 aa)
rpsL30S ribosomal subunit protein S12; With S4 and S5 plays an important role in translational accuracy. Cryo-EM studies suggest that S12 contacts the EF-Tu bound tRNA in the A-site during codon-recognition. This contact is most likely broken as the aminoacyl-tRNA moves into the peptidyl transferase center in the 50S subunit; Belongs to the universal ribosomal protein uS12 family. (124 aa)
yhgFPutative transcriptional accessory protein. (773 aa)
ugpCSn-glycerol-3-phosphate ABC transporter ATPase; Part of the ABC transporter complex UgpABCE involved in sn- glycerol-3-phosphate import. Responsible for energy coupling to the transport system (Probable). Can also transport glycerophosphoryl diesters. (356 aa)
cspARNA chaperone and antiterminator, cold-inducible; Binds to and stimulates the transcription of the CCAAT- containing, cold-shock-inducible promoters of the H-NS and GyrA proteins. Binds also to the inverted repeat 5'-ATTGG-3'. (70 aa)
ligBDNA ligase, NAD(+)-dependent; Catalyzes the formation of phosphodiester linkages between 5'-phosphoryl and 3'-hydroxyl groups in double-stranded DNA using NAD as a coenzyme and as the energy source for the reaction. Belongs to the NAD-dependent DNA ligase family. LigB subfamily. (560 aa)
priBPrimosomal protein N; Binds single-stranded DNA at the primosome assembly site (PAS). During primosome assembly it facilitates the complex formation between PriA and DnaT. Belongs to the PriB family. (104 aa)
recGATP-dependent DNA helicase; Plays a critical role in recombination and DNA repair. Helps process Holliday junction intermediates to mature products by catalyzing branch migration. Has a DNA unwinding activity characteristic of a DNA helicase with 3'- to 5'- polarity. Unwinds branched duplex DNA (Y-DNA). Has a role in constitutive stable DNA replication (cSDR) and R-loop formation. Is genetically synergistic to RadA and RuvABC. Belongs to the helicase family. RecG subfamily. (693 aa)
rhoTranscription 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. (419 aa)
malKMaltose ABC transportor ATPase; Part of the ABC transporter complex MalEFGK involved in maltose/maltodextrin import. Responsible for energy coupling to the transport system; Belongs to the ABC transporter superfamily. Maltooligosaccharide importer (TC 3.A.1.1.1) family. (371 aa)
ssbSingle-stranded DNA-binding protein; Plays an important role in DNA replication, recombination and repair. Binds to ssDNA and to an array of partner proteins to recruit them to their sites of action during DNA metabolism. Acts as a sliding platform that migrates on DNA via reptation. SSB or its 10 C-terminal amino acids stimulates the ATPase activity of RadD. (178 aa)
lysULysine tRNA synthetase, inducible; Also can synthesize a number of adenyl dinucleotides (in particular AppppA). These dinucleotides have been proposed to act as modulators of the heat-shock response and stress response; Belongs to the class-II aminoacyl-tRNA synthetase family. (505 aa)
efpPolyproline-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, [...] (188 aa)
rsgARibosome small subunit-dependent GTPase A; One of at least 4 proteins (Era, RbfA, RimM and RsgA/YjeQ) that assist in the late maturation steps of the functional core of the 30S ribosomal subunit. Binds the 30S subunit contacting the head, platform, and rRNA helix 44, which may assist the last maturation stages. Removes RbfA from mature, but not immature 30S ribosomes in a GTP- dependent manner; 95% removal in the presence of GTP, 90% removal in GMP-PNP and 65% removal in the presence of GDP. Circulary permuted GTPase that catalyzes rapid hydrolysis of GTP with a slow catalytic turnover [...] (350 aa)
Your Current Organism:
Escherichia coli K12
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
Server load: low (14%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.