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hlpA hlpA htrA htrA ilvI ilvI ilvH ilvH hfq hfq frdA frdA frdB frdB yjdB yjdB basS basS acs acs aceB aceB yneA yneA pldB pldB pldA pldA ilvA ilvA ilvD ilvD ilvG ilvG pstS pstS pstB pstB ilvB ilvB ilvN ilvN livK livK STM3531 STM3531 pckA pckA mdh mdh tdcB tdcB tolC tolC luxS luxS cysP cysP argT argT pmrD pmrD pqaB pqaB pmrF pmrF yfbE yfbE ompC ompC yojI yojI yeiU yeiU msbB msbB ldhA ldhA phoP phoP phoQ phoQ htrB htrB agp agp ompF ompF ybjZ ybjZ glnH glnH galM galM sdhB sdhB pagP pagP mdlA mdlA cyoA cyoA lpxA lpxA
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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
white nodes:
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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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)
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)
ilvIAcetolactate synthase isozyme III large subunit. (SW:ILVI_SALTY). (553 aa)
ilvHAcetolactate synthase isozyme III small subunit. (SW:ILVH_SALTY). (163 aa)
hfqHost factor I for bacteriophage Q beta replication; 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 (By similarity). Plays a central regulatory role in the microbial response to space flight conditions. Is essential for virulence and is required for efficient invasion of non-phagocytic cells. (102 aa)
frdAFumarate reductase; Anaerobic; flavoprotein subunit; similar to E. coli fumarate reductase, anaerobic, flavoprotein subunit (AAC77114.1); Blastp hit to AAC77114.1 (602 aa), 95% identity in aa 1 - 595. (596 aa)
frdBFumarate reductase; Anaerobic; Fe-S protein subunit; similar to E. coli fumarate reductase, anaerobic, iron-sulfur protein subunit (AAC77113.1); Blastp hit to AAC77113.1 (244 aa), 95% identity in aa 1 - 244; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. (244 aa)
yjdBPutative integral membrane protein; Catalyzes the addition of a phosphoethanolamine moiety to the lipid A. The phosphoethanolamine modification is required for resistance to polymyxin; Belongs to the phosphoethanolamine transferase family. EptA subfamily. (547 aa)
basSSensory kinase in two-component regulatory system with BasR; Member of the two-component regulatory system BasS/BasR. Autophosphorylates and activates BasR by phosphorylation. Plays a role in the adaptation of the organism to the host environment, in particular to neutrophils, and therefore it plays a role in virulence as well. (356 aa)
acsacetyl-CoA synthetase; Catalyzes the conversion of acetate into acetyl-CoA (AcCoA), an essential intermediate at the junction of anabolic and catabolic pathways. Acs undergoes a two-step reaction. In the first half reaction, Acs combines acetate with ATP to form acetyl-adenylate (AcAMP) intermediate. In the second half reaction, it can then transfer the acetyl group from AcAMP to the sulfhydryl group of CoA, forming the product AcCoA. (652 aa)
aceBSimilar to E. coli malate synthase A (AAC76984.1); Blastp hit to AAC76984.1 (533 aa), 90% identity in aa 1 - 533. (533 aa)
yneAPutative sugar transport protein; Part of the ABC transporter complex LsrABCD involved in autoinducer 2 (AI-2) import. Binds AI-2 and delivers it to the LsrC and LsrD permeases (Probable); Belongs to the bacterial solute-binding protein 2 family. (340 aa)
pldBSimilar to E. coli lysophospholipase L(2) (AAC76828.1); Blastp hit to AAC76828.1 (340 aa), 81% identity in aa 1 - 336. (338 aa)
pldAOuter membrane phospholipase A; Hydrolysis of phosphatidylcholine with phospholipase A2 (EC 3.1.1.4) and phospholipase A1 (EC 3.1.1.32) activities; Belongs to the phospholipase A1 family. (289 aa)
ilvAThreonine deaminase; Catalyzes the anaerobic formation of alpha-ketobutyrate and ammonia from threonine in a two-step reaction. The first step involved a dehydration of threonine and a production of enamine intermediates (aminocrotonate), which tautomerizes to its imine form (iminobutyrate). Both intermediates are unstable and short-lived. The second step is the nonenzymatic hydrolysis of the enamine/imine intermediates to form 2- ketobutyrate and free ammonia. In the low water environment of the cell, the second step is accelerated by RidA (By similarity). Belongs to the serine/threon [...] (514 aa)
ilvDDihydroxy-acid dehydratase. (SW:ILVD_SALTY); Belongs to the IlvD/Edd family. (616 aa)
ilvGFragment 1; cryptic; similar to E. coli acetolactate synthase II, large subunit, cryptic, interrupted (AAC77488.1); Blastp hit to AAC77488.1 (327 aa), 93% identity in aa 1 - 325. (548 aa)
pstSHigh-affinity phosphate transporter; Part of the ABC transporter complex PstSACB involved in phosphate import; Belongs to the PstS family. (346 aa)
pstBHigh-affinity phosphate transporter; Part of the ABC transporter complex PstSACB involved in phosphate import. Responsible for energy coupling to the transport system; Belongs to the ABC transporter superfamily. Phosphate importer (TC 3.A.1.7) family. (257 aa)
ilvBValine sensitive; similar to E. coli acetolactate synthase I,valine-sensitive, large subunit (AAC76694.1); Blastp hit to AAC76694.1 (562 aa), 91% identity in aa 1 - 562. (562 aa)
ilvNSimilar to E. coli acetolactate synthase I, valine sensitive, small subunit (AAC76693.1); Blastp hit to AAC76693.1 (96 aa), 90% identity in aa 1 - 96. (96 aa)
livKHigh-affinity branched-chain amino acid transporter; This protein is a component of the leucine-specific transport system, which is one of the two periplasmic binding protein-dependent transport systems of the high-affinity transport of the branched-chain amino acids; Belongs to the leucine-binding protein family. (369 aa)
STM3531Similar to E. coli putative dehydratase (AAC73372.1); Blastp hit to AAC73372.1 (655 aa), 39% identity in aa 86 - 578; Belongs to the IlvD/Edd family. (571 aa)
pckAPhosphoenolpyruvate carboxykinase; Involved in the gluconeogenesis. Catalyzes the conversion of oxaloacetate (OAA) to phosphoenolpyruvate (PEP) through direct phosphoryl transfer between the nucleoside triphosphate and OAA. (539 aa)
mdhMalate dehydrogenase; Catalyzes the reversible oxidation of malate to oxaloacetate. (312 aa)
tdcBThreonine dehydratase; Catalyzes the anaerobic formation of alpha-ketobutyrate and ammonia from threonine in a two-step reaction. The first step involved a dehydration of threonine and a production of enamine intermediates (aminocrotonate), which tautomerizes to its imine form (iminobutyrate). Both intermediates are unstable and short-lived. The second step is the nonenzymatic hydrolysis of the enamine/imine intermediates to form 2- ketobutyrate and free ammonia. In the low water environment of the cell, the second step is accelerated by RidA. TdcB also dehydrates serine to yield pyruv [...] (329 aa)
tolCOuter membrane channel; Specific tolerance to colicin E1; segregation of daughter chromosomes; role in organic solvent tolerance; similar to E. coli outer membrane channel; specific tolerance to colicin E1; segregation of daughter chromosomes (AAC76071.1); Blastp hit to AAC76071.1 (495 aa), 89% identity in aa 1 - 495. (491 aa)
luxSQuorum sensing protein; Involved in the synthesis of autoinducer 2 (AI-2) which is secreted by bacteria and is used to communicate both the cell density and the metabolic potential of the environment. The regulation of gene expression in response to changes in cell density is called quorum sensing. Catalyzes the transformation of S-ribosylhomocysteine (RHC) to homocysteine (HC) and 4,5-dihydroxy-2,3-pentadione (DPD) (By similarity); Belongs to the LuxS family. (171 aa)
cysPThiosulfate transport protein; Part of the ABC transporter complex CysAWTP (TC 3.A.1.6.1) involved in sulfate/thiosulfate import. This protein specifically binds thiosulfate and is involved in its transmembrane transport (By similarity). (338 aa)
argTLysine/arginine/ornithine transport protein; Part of an ABC transporter involved in lysine, arginine and ornithine transport. Stimulates ATPase activity of HisP. (260 aa)
pmrDPolymyxin resistance protein B; Interacts with phosphorylated BasR protein to mediate transcriptional induction of BasR-activated genes to induce polymyxin resistance; Belongs to the PmrD family. (85 aa)
pqaBPutative melittin resistance protein; Catalyzes the transfer of the L-Ara4N moiety of the glycolipid undecaprenyl phosphate-alpha-L-Ara4N to lipid A. The modified arabinose is attached to lipid A and is required for resistance to polymyxin and cationic antimicrobial peptides. Belongs to the glycosyltransferase 83 family. (548 aa)
pmrFPutative glycosyl transferase; Catalyzes the transfer of 4-deoxy-4-formamido-L-arabinose from UDP to undecaprenyl phosphate. The modified arabinose is attached to lipid A and is required for resistance to polymyxin and cationic antimicrobial peptides. Plays an important role in pathogenesis by providing resistance to antimicrobial peptides within macrophages or at other anatomic sites encountered during infection. Belongs to the glycosyltransferase 2 family. (327 aa)
yfbEPutative DegT/DnrJ/EryC1/StrS family; Catalyzes the conversion of UDP-4-keto-arabinose (UDP-Ara4O) to UDP-4-amino-4-deoxy-L-arabinose (UDP-L-Ara4N). The modified arabinose is attached to lipid A and is required for resistance to polymyxin and cationic antimicrobial peptides (By similarity); Belongs to the DegT/DnrJ/EryC1 family. ArnB subfamily. (385 aa)
ompCOuter membrane protein 1b (ib;c); Forms pores that allow passive diffusion of small molecules across the outer membrane. (378 aa)
yojIATPase component; similar to E. coli putative ATP-binding component of a transport system (AAC75271.1); Blastp hit to AAC75271.1 (547 aa), 90% identity in aa 1 - 547. (547 aa)
yeiUPutative permease; Involved in the modification of the lipid A domain of lipopolysaccharides (LPS). Transfers a phosphate group from undecaprenyl pyrophosphate (C55-PP) to lipid A to form lipid A 1- diphosphate. Contributes to the recycling of undecaprenyl phosphate (C55-P); Belongs to the LpxT phosphotransferase family. (239 aa)
msbBMyristoyl transferase in lipid A biosynthesis; Catalyzes the transfer of myristate from myristoyl-acyl carrier protein (ACP) to Kdo(2)-(lauroyl)-lipid IV(A) to form Kdo(2)- lipid A. (323 aa)
ldhASimilar to E. coli fermentative D-lactate dehydrogenase, NAD-dependent (AAC74462.1); Blastp hit to AAC74462.1 (329 aa), 94% identity in aa 1 - 328; Belongs to the D-isomer specific 2-hydroxyacid dehydrogenase family. (329 aa)
phoPResponse regulator in two-component regulatory system with PhoQ; Member of the two-component regulatory system PhoP/PhoQ which regulates the expression of genes involved in virulence, adaptation to acidic and low Mg(2+) environments and resistance to host defense antimicrobial peptides. Essential for intramacrophage survival of S.typhimurium. In low periplasmic Mg(2+), PhoQ phosphorylates PhoP, resulting in the expression of PhoP-activated genes (PAG) and repression of PhoP-repressed genes (PRG). In high periplasmic Mg(2+), PhoQ dephosphorylates phospho-PhoP, resulting in the repressio [...] (224 aa)
phoQSensory kinase protein in two-component regulatory system with PhoP; Member of the two-component regulatory system PhoP/PhoQ which regulates the expression of genes involved in virulence, adaptation to acidic and low Mg(2+) environments and resistance to host defense antimicrobial peptides. Essential for intramacrophage survival of S.typhimurium. In low periplasmic Mg(2+), PhoQ functions as a membrane- associated protein kinase that undergoes autophosphorylation and subsequently transfers the phosphate to PhoP, resulting in the expression of PhoP-activated genes (PAG) and repression of [...] (487 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)
agpGlucose-1-phosphatase precursor. (SW:AGP_SALTY). (413 aa)
ompFOuter membrane protein 1a (ia;b;f), porin; Forms pores that allow passive diffusion of small molecules across the outer membrane. It is also a receptor for the bacteriophage T2 (By similarity). (363 aa)
ybjZPutative ABC superfamily (atp&memb) transport protein; Part of the tripartite efflux system MacAB-TolC. MacB is a non-canonical ABC transporter that contains transmembrane domains (TMD), which form a pore in the inner membrane, and an ATP-binding domain (NBD), which is responsible for energy generation. Confers resistance against macrolides. (648 aa)
glnHGlutamine high-affinity transporter; ABC superfamily (bind_prot); similar to E. coli periplasmic glutamine-binding protein; permease (AAC73898.1); Blastp hit to AAC73898.1 (248 aa), 96% identity in aa 1 - 248; Belongs to the bacterial solute-binding protein 3 family. (248 aa)
galMGalactose-1-epimerase (mutarotase); Converts alpha-aldose to the beta-anomer. (346 aa)
sdhBSuccinate dehydrogenase, Fe-S protein; Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth. (239 aa)
pagPPhoPQ-activated gene; Transfers a palmitate residue from the sn-1 position of a phospholipid to the N-linked hydroxymyristate on the proximal unit of lipid A or its precursors. Required for resistance to cationic antimicrobial peptides (CAMPs). Modifications of lipid A with a palmitate chain allow to evade host immune defenses by resisting antimicrobial peptides and attenuating the inflammatory response to infection triggered by lipopolysaccharide through the Toll-like receptor 4 (TLR4) signal transduction pathway. (190 aa)
mdlAPutative ABC superfamily (atp) transporter; Similar to E. coli ATP-binding component of a transport system (AAC73551.1); Blastp hit to AAC73551.1 (590 aa), 88% identity in aa 1 - 590. (590 aa)
cyoASimilar to E. coli cytochrome o ubiquinol oxidase subunit II (AAC73535.1); Blastp hit to AAC73535.1 (315 aa), 95% identity in aa 1 - 315. (318 aa)
lpxAUDP-N-acetylglucosamine acetyltransferase; Involved in the biosynthesis of lipid A, a phosphorylated glycolipid that anchors the lipopolysaccharide to the outer membrane of the cell. (262 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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