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rpmH rpmH yaaT yaaT rnmV rnmV ksgA ksgA gltX gltX cysE cysE cysS cysS mrnC mrnC rlmB rlmB yacP yacP rplD rplD rplR rplR cshA cshA ndoAI ndoAI ndoA ndoA cspC cspC rbn rbn cspB cspB yhcR yhcR srtA srtA nsrR nsrR yhaM yhaM rnjA rnjA ylbF ylbF pyrE pyrE rnc rnc ftsY ftsY rnhB rnhB rpsO rpsO pnpA pnpA rnjB rnjB rny rny ymdB ymdB ymcA ymcA hfq hfq yncB yncB nrnB nrnB yonT yonT yokF yokF cspD cspD ypdQ ypdQ hbs hbs rnz rnz recO recO dgkA dgkA yqfG yqfG yqfF yqfF txpA txpA rsh rsh recJ recJ ysnB ysnB rdgB rdgB rph rph rnhC rnhC nrnA nrnA bsn bsn smpB smpB rnr rnr yvaK yvaK secG secG eno eno gapA gapA cggR cggR csrA csrA fabZ fabZ rho rho rnpA rnpA
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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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Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
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rpmHRibosomal protein L34; Evidence 2a: Function of homologous gene experimentally demonstrated in an other organism; structure. (44 aa)
yaaTConserved hypothetical protein; Essential for the phosphorelay during initiation of sporulation. May control the level of phosphorylated spo0A through spo0E activity during sporulation. (275 aa)
rnmVRibonuclease M5; Required for correct processing of both the 5' and 3' ends of 5S rRNA precursor. Cleaves both sides of a double-stranded region yielding mature 5S rRNA in one step. Releases 5'-phosphoryl and 3'- hydroxy termini. (186 aa)
ksgADimethyladenosine 16S ribosomal RNA transferase; Specifically dimethylates two adjacent adenosines (A1518 and A1519) in the loop of a conserved hairpin near the 3'-end of 16S rRNA in the 30S particle. May play a critical role in biogenesis of 30S subunits; Belongs to the class I-like SAM-binding methyltransferase superfamily. rRNA adenine N(6)-methyltransferase family. RsmA subfamily. (292 aa)
gltXglutamyl-tRNA 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). (483 aa)
cysESerine acetyltransferase; Catalyzes the acetylation of serine by acetyl-CoA to produce O-acetylserine (OAS). (217 aa)
cysScysteinyl-tRNA synthetase; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type e: enzyme; Belongs to the class-I aminoacyl-tRNA synthetase family. (466 aa)
mrnCRibonuclease for 23S RNA maturation; Involved in correct processing of both the 5' and 3' ends of 23S rRNA precursor. Processes 30S rRNA precursor transcript even in absence of ribonuclease 3 (Rnc); Rnc processes 30S rRNA into smaller rRNA precursors. Cleaves more efficiently on assembled 50S ribosomal subunits. Cleavage is strongly stimulated by ribosomal protein L3 (RplC); 20-30% DMSO can replace RplC, suggesting RplC may alter rRNA conformation. (143 aa)
rlmB23S rRNA methyltransferase; Evidence 2a: Function of homologous gene experimentally demonstrated in an other organism; Product type e: enzyme; Belongs to the class IV-like SAM-binding methyltransferase superfamily. RNA methyltransferase TrmH family. (249 aa)
yacPPutative ribonuclease with PIN and NYN domains; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme. (170 aa)
rplDRibosomal protein L4; 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. (207 aa)
rplRRibosomal 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. (120 aa)
cshAATP-dependent RNA helicase; The most abundant DEAD-box RNA helicase. An ATP-dependent RNA helicase with RNA-dependent ATPase activity. May work in conjunction with the cold shock proteins to ensure proper initiation of transcription at low and optimal temperatures. In vitro, unwinds dsRNA in both 5'- and 3'- directions. Plays a role in ribosomal 50S subunit assembly. Its deletion leads to changes in mRNA levels for over 200 transcripts. (494 aa)
ndoAIAntitoxin EndoAI; Antitoxin component of a type II toxin-antitoxin (TA) system. Antitoxin that directly inhibits activity of EndoA in vitro. Upon expression in E.coli counteracts inhibitory effect of endoribonuclease EndoA. The EndoA-EndoAI complex does not seem to bind its own promoter. (93 aa)
ndoAEndoribonuclease toxin; Toxic component of a type II toxin-antitoxin (TA) system. Specific for 5'-UACAU-3' sequences, cleaving after the first U. Yields cleavage products with 3' phosphate and 5' hydroxyl groups. Cannot digest substrate with a UUdUACAUAA cleavage site. Overexpression is toxic for cell growth (shown in E.coli), probably by inhibiting protein synthesis through the cleavage of single-stranded RNA. The toxicity is reversed by the antitoxin EndoAI. Toxin activity cannot be inhibited by MazE from E.coli. The EndoA-EndoAI complex does not seem to bind its own promoter. (116 aa)
cspCCold-shock protein; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type f: factor. (66 aa)
rbnPutative ribonuclease BN; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pe: putative enzyme. (275 aa)
cspBMajor cold-shock protein, RNA helicase co-factor, RNA co-chaperone; Binds to the pentamer sequences ATTGG and CCAAT with highest affinity in single-stranded DNA, and also to other sequences. Has greater affinity for ATTGG than CCAAT. Can act as transcriptional activator of cold shock genes by recognizing putative ATTGG-box elements present in promoter regions of genes induced under cold shock conditions. (67 aa)
yhcRNon specific extracellular endonuclease cleaving RNA and DNA; Sugar-nonspecific endonuclease that yields nucleotide 3'- monophosphate products. No 5'-nucleotidase activity was detected, using 5'-AMP as the substrate, in the presence of diverse divalent metals and with various pH values. (1217 aa)
srtASortase A; Transpeptidase that anchors surface proteins to the cell wall. Recognizes and modifies its substrate by proteolytic cleavage of a C-terminal sorting signal. Following cleavage, a covalent intermediate is formed via a thioester bond between the sortase and its substrate, which is then transferred and covalently attached to the cell wall (Probable). This sortase recognizes a Leu-Pro-Asp-Thr-Ser/Ala (LPDTS/A) motif. It has two substrates, YhcR and YfkN. Belongs to the bacterial sortase family. Class D subfamily. (198 aa)
nsrRNO-dependent activator of the ResDE regulon; Nitric oxide-responsive transcriptional regulator. It represses the expression of flavohemoprotein hmp and the nitrite reductase nasD. Probably plays a role in the up-regulation of the resDE regulon in the presence of nitric oxide. (146 aa)
yhaM3'-5' exonuclease; Shows a 3'-5' exoribonuclease activity as well as single- stranded DNA 3'-5'exonuclease activity. Plays a role in the secondary pathway of 23S rRNA 3' end maturation; Belongs to the YhaM family. (314 aa)
rnjARibonuclease J1; An RNase that has endonuclease and 5'-3' exonuclease activity, playing a role in both rRNA and mRNA stability and degradation. Endonuclease activity can cleave within 4 nucleotides of the 5'-end of a triphosphorylated RNA. Endonuclease digestion by the RNase J1/J2 complex occurs at a different site and in some cases more efficiently than J1 or J2 alone. The exonuclease activity of the J1/J2 complex is highly processive on substrates longer than 5 nucleotides, on shorter substrates is distributive. Preferentially cleaves ssRNA, possibly in AU-rich regions. The 5'-exonuc [...] (555 aa)
ylbFPutative regulatory protein; Regulates sporulation prior to stage II. Positively controls the competence regulator ComK at a post-transcriptional level. May modulate the translation, stability or activity of ComS. May work together with YmcA to regulate community development. (149 aa)
pyrEOrotate phosphoribosyltransferase; Catalyzes the transfer of a ribosyl phosphate group from 5- phosphoribose 1-diphosphate to orotate, leading to the formation of orotidine monophosphate (OMP). (216 aa)
rncRibonuclease III; Digests double-stranded RNA. Involved in the processing of ribosomal RNA transcript to yield the immediate precursors to the large and small rRNAs (23S and 16S). Also processes pre-scRNA (the precursor of the signal recognition particle RNA). Probably also processes some mRNAs, and tRNAs when they are encoded in the rRNA operon. Probably processes pre-crRNA and tracrRNA of type II CRISPR loci if present in the organism. (249 aa)
ftsYSignal recognition particle (docking protein); 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). (329 aa)
rnhBRibonuclease HII; Endonuclease that specifically degrades the RNA of RNA-DNA hybrids; Belongs to the RNase HII family. (255 aa)
rpsORibosomal protein S15 (BS18); 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)
pnpAPolynucleotide phosphorylase (PNPase); Involved in mRNA degradation. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'- to 5'- direction. Necessary for competence development in Bacillus subtilis. May be necessary for modification of the srfA transcript (stabilization or translation activation). (705 aa)
rnjBRibonuclease J2; Endonucleolytically cleaves the 5'-leader sequence of certain mRNAs. Endonuclease digestion by the RNase J1/J2 complex occurs at a different site and in some cases more efficiently than J1 or J2 alone. The exonuclease activity of the J1/J2 complex is highly processive on substrates longer than 5 nucleotides, on shorter substrates is distributive. Plays a role in mRNA maturation and stability. Appears to have a limited effect on 16S rRNA maturation, despite its similarity to RNase J1. This subunit alone has very poor 5'-3' exonuclease activity. Belongs to the metallo-be [...] (555 aa)
rnyEndoribonuclease Y; Endoribonuclease that initiates mRNA decay. Initiates the decay of all SAM-dependent riboswitches, such as yitJ riboswitch. Involved in processing of the gapA operon mRNA, it cleaves between cggR and gapA. Is also the decay-initiating endonuclease for rpsO mRNA. Belongs to the RNase Y family. (520 aa)
ymdBPutative hydrolase involved in biofilm formation; Plays a central, regulatory role in the late adaptive responses and affects the levels of many genes. May act via regulation of cAMP levels. Decreases the expression of motility genes and induces genes involved in biofilm formation, by controlling the expression of SlrR. Required for formation of intercellular nanotubes that bridge neighboring cells to allow molecular exchange. Plays a key role in directing the early stages of colony development. In vitro, has a metal-dependent phosphodiesterase activity against 2',3'-cAMP and 2',3'-cGM [...] (264 aa)
ymcAMaster regulator for biofilm formation; May work together with YlbF to regulate community development. (143 aa)
hfqHfq RNA chaperone; RNA chaperone that binds small regulatory RNA (sRNAs) and mRNAs to facilitate mRNA translational regulation in response to envelope stress, environmental stress and changes in metabolite concentrations. Also binds with high specificity to tRNAs. Belongs to the Hfq family. (73 aa)
yncBDNA nuclease, lipoprotein; Shows DNase activity on double strand DNA. Belongs to the thermonuclease family. (211 aa)
nrnBOligoribonuclease (nanoRNase); Degrades RNA oligonucleotides with a length of 5 nucleotides in a 3'- to 5'-direction. Less active on shorter RNA oligonucleotides and on those with a length of 24 nucleotides. Prefers RNA oligonucleotides containing adenines rather than cytosines. (399 aa)
yonTHypothetical protein; Evidence 5: No homology to any previously reported sequences. (58 aa)
yokFSPbeta phage DNA nuclease, lipoprotein; Catalyzes the hydrolysis of supercoiled double and single strand DNA and RNA. Involved in chromosomal DNA degradation and cell death caused by thermal stress. (296 aa)
cspDCold-shock protein, molecular chaperone, RNA-helicase co-factor; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type f: factor. (66 aa)
ypdQPutative RNA binding protein; Not known; does not have RNase H activity; Belongs to the RNase H family. EbsB subfamily. (132 aa)
hbsNon-specific DNA-binding protein HBsu; Histone-like DNA-binding protein which is capable of wrapping DNA to stabilize it, and thus to prevent its denaturation under extreme environmental conditions. Binds evenly across chromosome, does not display a preference for AT content. (92 aa)
rnzRibosomal protein L31C pseudogene; Zinc phosphodiesterase, which displays some tRNA 3'- processing endonuclease activity. Probably involved in tRNA maturation, by removing a 3'-trailer from precursor tRNA. (307 aa)
recODNA double strand break repair and homologous recombination factor; Plays a role in DNA double-stranded break repair. It seems to be involved in an RecBC-independent recombinational process of DNA repair. It may act with RecF and RecR. Is recruited to repair centers, foci that are the site of double-strand break(s) after RecN and before RecF; may actively recruit RecF. (255 aa)
dgkAUndecaprenol kinase; Catalyzes the phosphorylation of undecaprenol in vitro, which is probably the physiological substrate. Exhibits no detectable activity against other substrates such as monoacylglycerol, ceramide, or diacylglycerol (DAG). Appears indispensable for the maintenance of spore stability and viability in B.subtilis. (123 aa)
yqfGPutative metal-dependent hydrolase; Single strand-specific metallo-endoribonuclease involved in late-stage 70S ribosome quality control and in maturation of the 3' terminus of the 16S rRNA. (157 aa)
yqfFPutative membrane associate hydrolase; Probably has phosphodiesterase (PDE) activity against cyclic- di-AMP (c-di-AMP); may be the major c-di-AMP PDE in the cell. In B.subtilis c-di-AMP is a second messenger that mediates growth, DNA repair and cell wall homeostasis; it is toxic when present in excess. (711 aa)
txpAConserved unknown protein (fragment); Toxic component of a type I toxin-antitoxin (TA) system. Overexpression of txpA causes cell lysis; the TxpA protein has been suggested to act on the cell membrane or might possibly block cell wall synthesis. Overexpression in E.coli is not toxic. (59 aa)
rshGTP pyrophosphokinase (RelA/SpoT); In eubacteria ppGpp (guanosine 3'-diphosphate 5-' diphosphate) is a mediator of the stringent response that coordinates a variety of cellular activities in response to changes in nutritional abundance. This enzyme catalyzes the formation of pppGpp which is then hydrolyzed to form ppGpp, it is probably the hydrolysis activity that is required for optimal growth (Probable); Belongs to the RelA/SpoT family. (734 aa)
recJPutative single-strand DNA-specific exonuclease; Putative single-stranded-DNA-specific exonuclease (By similarity). RecA thread formation during DNA double-strand break repair requires RecJ or AadAB; Belongs to the RecJ family. (786 aa)
ysnBPhosphoesterase; Evidence 2b: Function of strongly homologous gene; Product type e: enzyme; Belongs to the metallophosphoesterase superfamily. YfcE family. (169 aa)
rdgBInosine/xanthosine triphosphate pyrophosphatase (subunit A); Pyrophosphatase that catalyzes the hydrolysis of nucleoside triphosphates to their monophosphate derivatives, with a high preference for the non-canonical purine nucleotides XTP (xanthosine triphosphate), dITP (deoxyinosine triphosphate) and ITP. Seems to function as a house-cleaning enzyme that removes non-canonical purine nucleotides from the nucleotide pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions. Belongs to the HAM1 NTPase family. (198 aa)
rphRibonuclease PH; Phosphorolytic 3'-5' exoribonuclease that plays an important role in tRNA 3'-end maturation. Removes nucleotide residues following the 3'-CCA terminus of tRNAs; can also add nucleotides to the ends of RNA molecules by using nucleoside diphosphates as substrates, but this may not be physiologically important. Probably plays a role in initiation of 16S rRNA degradation (leading to ribosome degradation) during starvation. Plays a role in the secondary pathway of 23S rRNA 3' end maturation. (245 aa)
rnhCRibonuclease HIII; Endonuclease that specifically degrades the RNA of RNA-DNA hybrids; Belongs to the RNase HII family. RnhC subfamily. (313 aa)
nrnAOligoribonuclease (nanoRNAse), 3',5'-bisphosphate nucleotidase; Bifunctional enzyme which has both oligoribonuclease and pAp- phosphatase activities. Degrades RNA and DNA oligonucleotides with a length of 5 nucleotides and shorter, with a preference for 3-mers. Directionality is controversial; shown to degrade 5-mers and less in a 3' to 5' direction , and 11-mers in a 5' to 3' direction. Converts 3'(2')-phosphoadenosine 5'- phosphate (PAP) to AMP. (313 aa)
bsnExtracellular ribonuclease; Mg(2+)-activated ribonuclease which hydrolyzes RNA apparently nonspecifically into oligonucleotides with 5'-terminal phosphate. (288 aa)
smpBtmRNA-binding 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 t [...] (156 aa)
rnrRibonuclease R; 3'-5' exoribonuclease that releases 5'-nucleoside monophosphates and is involved in maturation of structured RNAs. (779 aa)
yvaKCarboxylesterase; Involved in the detoxification of xenobiotics. Shows maximal activity with C6 substrates, with gradually decreasing activity from C8 to C12 substrates. No activity for higher chain length substrates acids rather than long-chain ones (By similarity). (246 aa)
secGPreprotein translocase subunit; Involved in protein export. Participates in an early event of protein translocation (By similarity). (76 aa)
enoEnolase; Catalyzes the reversible conversion of 2-phosphoglycerate into phosphoenolpyruvate. It is essential for the degradation of carbohydrates via glycolysis; Belongs to the enolase family. (430 aa)
gapAGlyceraldehyde-3-phosphate dehydrogenase; Involved in the glycolysis. Catalyzes the oxidative phosphorylation of glyceraldehyde 3-phosphate (G3P) to 1,3- bisphosphoglycerate (BPG) using the cofactor NAD. The first reaction step involves the formation of a hemiacetal intermediate between G3P and a cysteine residue, and this hemiacetal intermediate is then oxidized to a thioester, with concomitant reduction of NAD to NADH. The reduced NADH is then exchanged with the second NAD, and the thioester is attacked by a nucleophilic inorganic phosphate to produce BPG. (335 aa)
cggRTranscriptional regulator of gapA; In the absence of glucose, represses the transcription of the gapA operon, which encodes five key glycolytic enzymes. Binds specifically to the cggR-gapA promoter region and blocks the progression of the RNA polymerase, leading to the arrest of the transcription; Belongs to the SorC transcriptional regulatory family. (340 aa)
csrACarbon storage regulator; A translational regulator that binds mRNA to regulate translation initiation and/or mRNA stability. Usually binds in the 5'- UTR at or near the Shine-Dalgarno sequence preventing ribosome-binding, thus repressing translation. Represses expression of flagellin (hag) in a post-transcriptional fashion. Specifically binds to 2 sites in the 5'-UTR of hag mRNA in a cooperative fashion; the second site overlaps the Shine-Dalgarno sequence and prevents 30S ribosomal subunit binding. Mutation of either binding site abolishes CsrA regulation of hag expression. Repressio [...] (74 aa)
fabZ(3R)-hydroxymyristoyl-[acyl carrier protein] dehydratase; Involved in unsaturated fatty acids biosynthesis. Catalyzes the dehydration of short chain beta-hydroxyacyl-ACPs and long chain saturated and unsaturated beta-hydroxyacyl-ACPs. (141 aa)
rhoTranscriptional terminator Rho; 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. (427 aa)
rnpAProtein component of ribonuclease P (RNase P) (substrate specificity); 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. (116 aa)
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
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