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recG recG ibpB ibpB ibpA ibpA rnpA rnpA hscA hscA hscB hscB grpE grpE recN recN rpoS rpoS ptr ptr prfB prfB xerD xerD folP folP dnaK dnaK dnaJ dnaJ surA surA djlA djlA polB polB araC araC htrA htrA hlpA hlpA ampH ampH thiL thiL thiJ thiJ apbA apbA tig tig clpP clpP clpX clpX htpG htpG hemH hemH copA copA ybbN ybbN ybbO ybbO ybbA ybbA ybbP ybbP cspE cspE ybeA ybeA nadD nadD leuS leuS lnt lnt cspD cspD yljA yljA clpA clpA ycaR ycaR pipD pipD cbpA cbpA htrB htrB cspH cspH yeaA yeaA sppA sppA nth nth hdeB hdeB cls cls ycgR ycgR cspC cspC flhB flhB cheW cheW fliR fliR rcsA rcsA cspB cspB umuD umuD cdd cdd sixA sixA yidD yidD yidC yidC trmE trmE soxS soxS mopB mopB mopA mopA orn orn msrA msrA hflB hflB fmt fmt slyD slyD yheS yheS yrfI yrfI glgA glgA yhhV yhhV rpoH rpoH cspA cspA
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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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
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textmining
co-expression
protein homology
Your Input:
recGDNA helicase; 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 a 3'- to 5'- polarity. Unwinds branched duplex DNA (Y- DNA); Belongs to the helicase family. RecG subfamily. (693 aa)
ibpBSmall heat shock protein; Associates with aggregated proteins, together with IbpA, to stabilize and protect them from irreversible denaturation and extensive proteolysis during heat shock and oxidative stress. Aggregated proteins bound to the IbpAB complex are more efficiently refolded and reactivated by the ATP-dependent chaperone systems ClpB and DnaK/DnaJ/GrpE. Its activity is ATP-independent. (142 aa)
ibpASmall heat shock protein; Associates with aggregated proteins, together with IbpB, to stabilize and protect them from irreversible denaturation and extensive proteolysis during heat shock and oxidative stress. Aggregated proteins bound to the IbpAB complex are more efficiently refolded and reactivated by the ATP-dependent chaperone systems ClpB and DnaK/DnaJ/GrpE. Its activity is ATP-independent. (137 aa)
rnpARNase P; RNaseP catalyzes the removal of the 5'-leader sequence from pre-tRNA to produce the mature 5'-terminus. It can also cleave other RNA substrates such as 4.5S RNA. The protein component plays an auxiliary but essential role in vivo by binding to the 5'-leader sequence and broadening the substrate specificity of the ribozyme. (119 aa)
hscAChaperone protein; 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. (616 aa)
hscBCo-chaperone protein Hsc20; 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. (171 aa)
grpEMolecular chaparone; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins, in association with DnaK and GrpE. It is the nucleotide exchange factor for DnaK and may function as a thermosensor. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-depe [...] (196 aa)
recNProtein used in recombination and DNA repair; May be involved in recombinational repair of damaged DNA. (553 aa)
rpoSSigma S (sigma 38) factor of RNA polymerase; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the master transcriptional regulator of the stationary phase and the general stress response. (330 aa)
ptrProtease III; Endopeptidase that degrades small peptides of less than 7 kDa, such as glucagon and insulin. (962 aa)
prfBPeptide chain release factor RF-2; Peptide chain release factor 2 directs the termination of translation in response to the peptide chain termination codons UGA and UAA. (293 aa)
xerDSite-specific recombinase; Site-specific tyrosine recombinase, which acts by catalyzing the cutting and rejoining of the recombining DNA molecules. Binds cooperatively to specific DNA consensus sequences that are separated from XerC binding sites by a short central region, forming the heterotetrameric XerC-XerD complex that recombines DNA substrates. The complex is essential to convert dimers of the bacterial chromosome into monomers to permit their segregation at cell division. It also contributes to the segregational stability of plasmids. In the complex XerD specifically exchanges t [...] (298 aa)
folP7,8-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. (282 aa)
dnaKChaperone Hsp70; Acts as a chaperone. (638 aa)
dnaJHeat shock protein DnaJ; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins and by disaggregating proteins, also in an autonomous, DnaK-independent fashion. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-dependent interactions between DnaJ, [...] (379 aa)
surAPeptidyl-prolyl cis-trans isomerase; Chaperone involved in the correct folding and assembly of outer membrane proteins. Recognizes specific patterns of aromatic residues and the orientation of their side chains, which are found more frequently in integral outer membrane proteins. May act in both early periplasmic and late outer membrane-associated steps of protein maturation. (428 aa)
djlADnaJ like chaperone protein; Regulatory DnaK co-chaperone. Direct interaction between DnaK and DjlA is needed for the induction of the wcaABCDE operon, involved in the synthesis of a colanic acid polysaccharide capsule, possibly through activation of the RcsB/RcsC phosphotransfer signaling pathway. The colanic acid capsule may help the bacterium survive conditions outside the host. (270 aa)
polBDNA polymerase II; 3'->5' exonuclease; similar to E. coli DNA polymerase II (AAC73171.1); Blastp hit to AAC73171.1 (783 aa), 89% identity in aa 1 - 783. (783 aa)
araCTranscriptional regulator (AraC/XylS family) for ara operon; Transcription factor that regulates the expression of several genes involved in the transport and metabolism of L-arabinose. (281 aa)
htrAPeriplasmic serine protease Do, heat shock protein; DegP acts as a chaperone at low temperatures but switches to a peptidase (heat shock protein) at higher temperatures. It degrades transiently denatured and unfolded proteins which accumulate in the periplasm following heat shock or other stress conditions. DegP is efficient with Val-Xaa and Ile-Xaa peptide bonds, suggesting a preference for beta-branched side chain amino acids. Only unfolded proteins devoid of disulfide bonds appear capable of being cleaved, thereby preventing non-specific proteolysis of folded proteins. Its proteolyt [...] (475 aa)
hlpAHistone-like protein, located in outer membrane; Molecular chaperone that interacts specifically with outer membrane proteins, thus maintaining the solubility of early folding intermediates during passage through the periplasm. (161 aa)
ampHPenicillin- binding protein; Similar to E. coli putative enzyme (AAC73479.1); Blastp hit to AAC73479.1 (385 aa), 91% identity in aa 10 - 385. (376 aa)
thiLThiamin-monophosphate kinase; Catalyzes the ATP-dependent phosphorylation of thiamine- monophosphate (TMP) to form thiamine-pyrophosphate (TPP), the active form of vitamin B1. (325 aa)
thiJ4-methyl-5(beta-hydroxyethyl)-thiazole synthesis; Protein and nucleotide deglycase that catalyzes the deglycation of the Maillard adducts formed between amino groups of proteins or nucleotides and reactive carbonyl groups of glyoxals. Thus, functions as a protein deglycase that repairs methylglyoxal- and glyoxal-glycated proteins, and releases repaired proteins and lactate or glycolate, respectively. Deglycates cysteine, arginine and lysine residues in proteins, and thus reactivates these proteins by reversing glycation by glyoxals. Is able to repair glycated serum albumin, collagen, g [...] (196 aa)
apbAKetopantoate reductase; Catalyzes the NADPH-dependent reduction of ketopantoate into pantoic acid. Has a strong preference for NADPH over NADH as the electron acceptor. Pantoate, ketoisovalerate, oxaloacetate, pyruvate, 3-hydroxypyruvate, alpha-ketoglutarate, alpha-ketobutyrate, and acetaldehyde cannot serve as substrates for reduction. (303 aa)
tigPeptidyl-prolyl cis/trans isomerase; 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. (432 aa)
clpPProteolytic subunit of clpA-clpP ATP-dependent serine protease; Cleaves peptides in various proteins in a process that requires ATP hydrolysis. Has a chymotrypsin-like activity. Plays a major role in the degradation of misfolded proteins. Belongs to the peptidase S14 family. (207 aa)
clpXSpecificity component of clpA-clpP ATP-dependent serine protease, chaperone; ATP-dependent specificity component of the Clp protease. It directs the protease to specific substrates. Can perform chaperone functions in the absence of ClpP. (423 aa)
htpGChaperone Hsp90, heat shock protein C 62.5; Molecular chaperone. Has ATPase activity. (632 aa)
hemHFerrochelatase; Catalyzes the ferrous insertion into protoporphyrin IX. (320 aa)
copAPutative copper-transporting ATPase; [Copper-exporting P-type ATPase]: Involved in Cu(+) export (By similarity). Essential for copper tolerance under both aerobic and anaerobic conditions. (833 aa)
ybbNSimilar to E. coli putative thioredoxin-like protein (AAC73594.1); Blastp hit to AAC73594.1 (296 aa), 94% identity in aa 13 - 296. (284 aa)
ybbOSimilar to E. coli putative oxidoreductase (AAC73595.1); Blastp hit to AAC73595.1 (269 aa), 90% identity in aa 14 - 268. (256 aa)
ybbAPutative ABC superfamily (atp_bind) transporter; Similar to E. coli putative ATP-binding component of a transport system (AAC73597.1); Blastp hit to AAC73597.1 (228 aa), 92% identity in aa 1 - 228. (228 aa)
ybbPPutative inner membrane protein; Similar to E. coli putative oxidoreductase (AAC73598.1); Blastp hit to AAC73598.1 (804 aa), 88% identity in aa 1 - 804. (804 aa)
cspERNA chaperone, negative regulator of cspA transcription; Similar to E. coli cold shock protein (AAC73724.1); Blastp hit to AAC73724.1 (69 aa), 98% identity in aa 1 - 69. (69 aa)
ybeAPutative cytoplasmic protein; Specifically methylates the pseudouridine at position 1915 (m3Psi1915) in 23S rRNA; Belongs to the RNA methyltransferase RlmH family. (155 aa)
nadDPutative nicotinic acid mononucleotide adenylyltransferase; Catalyzes the reversible adenylation of nicotinate mononucleotide (NaMN) to nicotinic acid adenine dinucleotide (NaAD). (213 aa)
leuSSimilar to E. coli leucine tRNA synthetase (AAC73743.1); Blastp hit to AAC73743.1 (860 aa), 95% identity in aa 1 - 860; Belongs to the class-I aminoacyl-tRNA synthetase family. (860 aa)
lntApolipoprotein N-acyltransferase; Catalyzes the phospholipid dependent N-acylation of the N- terminal cysteine of apolipoprotein, the last step in lipoprotein maturation; Belongs to the CN hydrolase family. Apolipoprotein N- acyltransferase subfamily. (512 aa)
cspDCspA-like protein but not cold shock induced; Similar to E. coli cold shock protein (AAC73967.1); Blastp hit to AAC73967.1 (74 aa), 94% identity in aa 1 - 71. (73 aa)
yljAPutative cytoplasmic protein; Involved in the modulation of the specificity of the ClpAP- mediated ATP-dependent protein degradation; Belongs to the ClpS family. (106 aa)
clpASimilar to E. coli ATP-binding component of serine protease (AAC73969.1); Blastp hit to AAC73969.1 (758 aa), 97% identity in aa 1 - 758; Belongs to the ClpA/ClpB family. (758 aa)
ycaRPutative inner membrane protein; Similar to E. coli orf, hypothetical protein (AAC74003.1); Blastp hit to AAC74003.1 (60 aa), 93% identity in aa 1 - 60; Belongs to the UPF0434 family. (60 aa)
pipDPathogenicity island encoded protein: SPI5. (489 aa)
cbpACurved DNA-binding protein; DNA-binding protein that preferentially recognizes a curved DNA sequence. It is probably a functional analog of DnaJ; displays overlapping activities with DnaJ, but functions under different conditions, probably acting as a molecular chaperone in an adaptive response to environmental stresses other than heat shock. Lacks autonomous chaperone activity; binds native substrates and targets them for recognition by DnaK. Its activity is inhibited by the binding of CbpM. (306 aa)
htrBLauroyl/myristoyl acyltransferase involved in lipid A biosynthesis; Catalyzes the transfer of laurate from lauroyl-acyl carrier protein (ACP) to Kdo(2)-lipid IV(A) to form Kdo(2)-(lauroyl)-lipid IV(A). (306 aa)
cspHHomology with cold shock proteins; Cold shock-like protein CSPH. (SW:CSPH_SALTY). (70 aa)
yeaAHypothetical protein; Putative domain frequently associated with peptide methionine sulfoxide reductase; similar to E. coli orf, hypothetical protein (AAC74848.1); Blastp hit to AAC74848.1 (137 aa), 85% identity in aa 1 - 137. (147 aa)
sppAProtease IV; Signal peptide peptidase; similar to E. coli protease IV, a signal peptide peptidase (AAC74836.1); Blastp hit to AAC74836.1 (618 aa), 86% identity in aa 1 - 618. (618 aa)
nthEndonuclease III; DNA repair enzyme that has both DNA N-glycosylase activity and AP-lyase activity. The DNA N-glycosylase activity releases various damaged pyrimidines from DNA by cleaving the N-glycosidic bond, leaving an AP (apurinic/apyrimidinic) site. The AP-lyase activity cleaves the phosphodiester bond 3' to the AP site by a beta-elimination, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'- phosphate. (211 aa)
hdeBPutative periplasmic transport protein; Required for optimal acid stress protection, which is important for survival of enteric bacteria in the acidic environment of the host stomach. Exhibits a chaperone-like activity at acidic pH by preventing the aggregation of many different periplasmic proteins. Belongs to the HdeB family. (109 aa)
clsCardiolipin synthase; Catalyzes the reversible phosphatidyl group transfer from one phosphatidylglycerol molecule to another to form cardiolipin (CL) (diphosphatidylglycerol) and glycerol. (486 aa)
ycgRPutative inner membrane protein; Acts as a flagellar brake, regulating swimming and swarming in a bis-(3'-5') cyclic diguanylic acid (c-di-GMP)-dependent manner. Overexpression of this gene decreases swimming and swarming motility; those cells that are motile turn predominantly counterclockwise. The D- 118 mutant is still able to bind FliM but no longer affects motility upon overexpression. Binds 1 c-di-GMP dimer per subunit. (244 aa)
cspCCold shock protein; Multicopy suppresses mukB mutants, putative regulator; cold shock-like protein CSPC. (SW:CSPC_SALTY). (69 aa)
flhBPutative part of export apparatus for flagellar proteins; Required for formation of the rod structure in the basal body of the flagellar apparatus. Together with FliI and FliH, may constitute the export apparatus of flagellin; Belongs to the type III secretion exporter family. (383 aa)
cheWPurine-binding chemotaxis protein; Involved in the transmission of sensory signals from the chemoreceptors to the flagellar motors. (167 aa)
fliRPutative flagellar biosynthetic protein; Role in flagellar biosynthesis; Belongs to the FliR/MopE/SpaR family. (264 aa)
rcsAPositive transcriptional regulator of capsular/exo- polysaccharide synthesis (LuxR/UhpA family); Component of the Rcs signaling system, which controls transcription of numerous genes. Binds, with RcsB, to the RcsAB box to regulate expression of genes. (207 aa)
cspBPutative cold-shock protein; Similar to E. coli cold shock-like protein (AAC74625.1); Blastp hit to AAC74625.1 (70 aa), 84% identity in aa 1 - 70. (70 aa)
umuDError-prone repair: SOS-response transcriptional repressor; Involved in UV protection and mutation. Essential for induced (or SOS) mutagenesis. May modify the DNA replication machinery to allow bypass synthesis across a damaged template. (139 aa)
cddCytidine/deoxycytidine deaminase; This enzyme scavenges exogenous and endogenous cytidine and 2'-deoxycytidine for UMP synthesis. (294 aa)
sixAPhosphohistidine phosphatase; Similar to E. coli orf, hypothetical protein (AAC75400.1); Blastp hit to AAC75400.1 (161 aa), 89% identity in aa 1 - 161. (161 aa)
yidDPutative inner membrane protein; Could be involved in insertion of integral membrane proteins into the membrane; Belongs to the UPF0161 family. (85 aa)
yidCPutative preprotein translocase subunit 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. Aids folding of multispanning membrane proteins. (548 aa)
trmEGTPase for tRNA modification and thiophene and furan oxidation; Exhibits a very high intrinsic GTPase hydrolysis rate. Involved in the addition of a carboxymethylaminomethyl (cmnm) group at the wobble position (U34) of certain tRNAs, forming tRNA- cmnm(5)s(2)U34; Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. TrmE GTPase family. (454 aa)
soxSTranscriptional activator of superoxide response regulon; Transcriptional activator of the superoxide response regulon of E.coli that includes at least 10 genes such as sodA, nfo, zwf and micF. Binds the DNA sequence 5'-GCACN(7)CAA-3'. It also facilitates the subsequent binding of RNA polymerase to the micF and the nfo promoters (By similarity). (107 aa)
mopBChaperone Hsp10; Binds to Cpn60 in the presence of Mg-ATP and suppresses the ATPase activity of the latter. (97 aa)
mopAChaperone Hsp60 with peptide-dependent ATPase activity; Prevents misfolding and promotes the refolding and proper assembly of unfolded polypeptides generated under stress conditions. (548 aa)
ornOligoribonuclease; 3'-to-5' exoribonuclease specific for small oligoribonucleotides; Belongs to the oligoribonuclease family. (181 aa)
msrAPeptide methionine sulfoxide reductase; Has an important function as a repair enzyme for proteins that have been inactivated by oxidation. Catalyzes the reversible oxidation-reduction of methionine sulfoxide in proteins to methionine. (212 aa)
hflBATP-dependent zinc-metallo protease; Acts as a processive, ATP-dependent zinc metallopeptidase for both cytoplasmic and membrane proteins. Plays a role in the quality control of integral membrane proteins; In the central section; belongs to the AAA ATPase family. (644 aa)
fmt10-formyltetrahydrofolate:L-methionyl-tRNA(fMet) N-formyltransferase; Attaches a formyl group to the free amino group of methionyl- tRNA(fMet). The formyl group appears to play a dual role in the initiator identity of N-formylmethionyl-tRNA by promoting its recognition by IF2 and preventing the misappropriation of this tRNA by the elongation apparatus. (315 aa)
slyDSimilar to E. coli FKBP-type peptidyl-prolyl cis-trans isomerase (rotamase) (AAC76374.1); Blastp hit to AAC76374.1 (196 aa), 97% identity in aa 1 - 196. (196 aa)
yheSContains duplicated ATPase domain; similar to E. coli putative ATP-binding component of a transport system (AAC76377.1); Blastp hit to AAC76377.1 (637 aa), 93% identity in aa 1 - 631. (635 aa)
yrfIHeat shock protein 33; Redox regulated molecular chaperone. Protects both thermally unfolding and oxidatively damaged proteins from irreversible aggregation. Plays an important role in the bacterial defense system toward oxidative stress. (294 aa)
glgAGlycogen synthase; Synthesizes alpha-1,4-glucan chains using ADP-glucose. (477 aa)
yhhVPutative cytoplasmic protein; Putative antitoxin component of a toxin-antitoxin (TA) system; its cognate toxin is unknown. (75 aa)
rpoHSigma H factor of RNA polymerase; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is involved in regulation of expression of heat shock genes. (284 aa)
cspAMajor cold shock protein 7.4; 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' (By similarity). (70 aa)
Your Current Organism:
Salmonella enterica Typhimurium
NCBI taxonomy Id: 99287
Other names: S. enterica subsp. enterica serovar Typhimurium str. LT2, Salmonella enterica subsp. enterica serovar Typhimurium LT2, Salmonella enterica subsp. enterica serovar Typhimurium str. LT2, Salmonella enterica subsp. enterica serovar Typhimurium strain LT2, Salmonella enterica subsp. enterica serovar Typhimurium strain LT2-LTL2, Salmonella typhimurium LT2
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