STRINGSTRING
arnF arnF arnE arnE eptA eptA eptC eptC wecA wecA waaA waaA waaQ waaQ waaG waaG waaP waaP waaS waaS waaB waaB waaO waaO waaR waaR waaY waaY waaZ waaZ waaU waaU waaL waaL waaC waaC waaF waaF hldD hldD eptB eptB kdsC kdsC kdsD kdsD gmhB gmhB gmhA gmhA kdsB kdsB lpxL lpxL kdsA kdsA lpxM lpxM wzzB wzzB wbbK wbbK wbbJ wbbJ wbbI wbbI wbbH wbbH glf glf wzxB wzxB rfbC rfbC rfbA rfbA rfbD rfbD rfbB rfbB wcaN wcaN wcaM wcaM wcaL wcaL wcaK wcaK wzxC wzxC wcaJ wcaJ cpsG cpsG cpsB cpsB hldE hldE srlQ srlQ lpxP lpxP arnT arnT arnD arnD arnA arnA arnC arnC arnB arnB lpxT lpxT wcaA wcaA wcaB wcaB wcaC wcaC wcaI wcaI wcaH wcaH wcaF wcaF wcaE wcaE wcaD wcaD
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:
arnFUndecaprenyl phosphate-alpha-L-ara4N exporter; Translocates 4-amino-4-deoxy-L-arabinose-phosphoundecaprenol (alpha-L-Ara4N-phosphoundecaprenol) from the cytoplasmic to the periplasmic side of the inner membrane; Belongs to the ArnF family. (128 aa)
arnEUndecaprenyl phosphate-alpha-L-ara4N exporter; Translocates 4-amino-4-deoxy-L-arabinose-phosphoundecaprenol (alpha-L-Ara4N-phosphoundecaprenol) from the cytoplasmic to the periplasmic side of the inner membrane. (111 aa)
eptALipid A phosphoethanolamine transferase; 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)
eptCLPS heptose I phosphoethanolamine transferase; Catalyzes the addition of a phosphoethanolamine moiety to the outer membrane lipopolysaccharide core; Belongs to the phosphoethanolamine transferase family. EptC/CptA subfamily. (577 aa)
wecAUDP-GlcNAc:undecaprenylphosphate GlcNAc-1-phosphate transferase; Catalyzes the transfer of the GlcNAc-1-phosphate moiety from UDP-GlcNAc onto the carrier lipid undecaprenyl phosphate (C55-P), yielding GlcNAc-pyrophosphoryl-undecaprenyl (GlcNAc-PP-C55). It is the first lipid-linked intermediate involved in enterobacterial common antigen (ECA) synthesis, and an acceptor for the addition of subsequent sugars to complete the biosynthesis of O-antigen lipopolysaccharide (LPS) in many E.coli O types. The apparent affinity of WecA for the polyisoprenyl phosphate substrates increases with the [...] (367 aa)
waaA3-deoxy-D-manno-octulosonic-acid transferase (KDO transferase); Involved in lipopolysaccharide (LPS) biosynthesis. Catalyzes the transfer of two 3-deoxy-D-manno-octulosonate (Kdo) residues from CMP-Kdo to lipid IV(A), the tetraacyldisaccharide-1,4'-bisphosphate precursor of lipid A; Belongs to the glycosyltransferase group 1 family. Glycosyltransferase 30 subfamily. (425 aa)
waaQLipopolysaccharide core biosynthesis protein; Catalyzes heptose transfer to the lipopolysaccharide core. It transfers a heptose, called heptose(III), to the heptose(II) of the inner core (By similarity); Belongs to the glycosyltransferase 9 family. (344 aa)
waaGUDP-glucose:(heptosyl)lipopolysaccharide alpha-1,3-glucosyltransferase; Involved in the addition of the first glucose residue to the lipopolysaccharide core; Belongs to the glycosyltransferase group 1 family. Glycosyltransferase 4 subfamily. (374 aa)
waaPKinase that phosphorylates core heptose of lipopolysaccharide; Catalyzes the phosphorylation of heptose(I) of the outer membrane lipopolysaccharide core. (265 aa)
waaSLipopolysaccharide rhamnose:KdoIII transferase; Lipopolysaccharide core biosynthesis; Protein involved in cell surface antigen activity, host-interacting and lipopolysaccharide core region biosynthetic process. (311 aa)
waaBLipopolysaccharide 1,6-galactosyltransferase; Adds a galactose goup to a glucose group of LPS; Belongs to the glycosyltransferase group 1 family. Glycosyltransferase 4 subfamily. (359 aa)
waaOUDP-D-galactose:(glucosyl)lipopolysaccharide- alpha-1,3-D-galactosyltransferase; Protein involved in cell surface antigen activity, host-interacting; Belongs to the glycosyltransferase 8 family. (339 aa)
waaRLipopolysaccharide 1,2-glucosyltransferase; Adds the glucose(II) group on the galactose(I) group of LPS. (338 aa)
waaYLipopolysaccharide core biosynthesis protein; Catalyzes the phosphorylation of heptose(II) of the outer membrane lipopolysaccharide core; Belongs to the protein kinase superfamily. RfaY/WaaY family. (232 aa)
waaZLipopolysaccharide KdoIII transferase; Lipopolysaccharide core biosynthesis; Protein involved in cell surface antigen activity, host-interacting and lipopolysaccharide core region biosynthetic process. (283 aa)
waaULipopolysaccharide core biosynthesis; Adds the terminal N-acetyl-D-glucosamine group on the glucose(II) group of LPS. (357 aa)
waaLO-antigen ligase; Adds the O-antigen on the glucose group of LPS. (419 aa)
waaCADP-heptose:LPS heptosyl transferase I; Heptose transfer to the lipopolysaccharide core. It transfers the innermost heptose to [4'-P](3-deoxy-D-manno-octulosonic acid)2-IVA; Belongs to the glycosyltransferase 9 family. (319 aa)
waaFADP-heptose--lps heptosyltransferase II; lipopolysaccharide core biosynthesis; Protein involved in cell surface antigen activity, host-interacting and lipopolysaccharide core region biosynthetic process. (348 aa)
hldDADP-L-glycero-D-mannoheptose-6-epimerase, NAD(P)-binding; Catalyzes the interconversion between ADP-D-glycero-beta-D- manno-heptose and ADP-L-glycero-beta-D-manno-heptose via an epimerization at carbon 6 of the heptose; Belongs to the NAD(P)-dependent epimerase/dehydratase family. HldD subfamily. (310 aa)
eptBKDO phosphoethanolamine transferase, Ca(2+)-inducible; Catalyzes the addition of a phosphoethanolamine (pEtN) moiety to the outer 3-deoxy-D-manno-octulosonic acid (Kdo) residue of a Kdo(2)-lipid A. Phosphatidylethanolamines with one unsaturated acyl group functions as pEtN donors and the reaction releases diacylglycerol; Belongs to the phosphoethanolamine transferase family. EptB subfamily. (563 aa)
kdsC3-deoxy-D-manno-octulosonate 8-phosphate phosphatase; Catalyzes the hydrolysis of 3-deoxy-D-manno-octulosonate 8- phosphate (KDO 8-P) to 3-deoxy-D-manno-octulosonate (KDO) and inorganic phosphate. (188 aa)
kdsDD-arabinose 5-phosphate isomerase; Involved in the biosynthesis of 3-deoxy-D-manno-octulosonate (KDO), a unique 8-carbon sugar component of lipopolysaccharides (LPSs). KdsD is not essential in the KDO biosynthesis and can be substituted by GutQ. Catalyzes the reversible aldol-ketol isomerization between D- ribulose 5-phosphate (Ru5P) and D-arabinose 5-phosphate (A5P). (328 aa)
gmhBD,D-heptose 1,7-bisphosphate phosphatase; Converts the D-glycero-beta-D-manno-heptose 1,7-bisphosphate (beta-HBP) intermediate into D-glycero-beta-D-manno-heptose 1-phosphate by removing the phosphate group at the C-7 position. (191 aa)
gmhAD-sedoheptulose 7-phosphate isomerase; Catalyzes the isomerization of sedoheptulose 7-phosphate in D-glycero-D-manno-heptose 7-phosphate; Belongs to the SIS family. GmhA subfamily. (192 aa)
kdsB3-deoxy-manno-octulosonate cytidylyltransferase; Activates KDO (a required 8-carbon sugar) for incorporation into bacterial lipopolysaccharide in Gram-negative bacteria. (248 aa)
lpxLLauryl-acyl carrier protein (ACP)-dependent acyltransferase; 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). Has 10 fold selectivity for lauroyl-ACP over myristoyl-ACP. In vitro, can also catalyze a slow second acylation reaction leading to the formation of Kdo(2)-(dilauroyl)-lipid IV(A). (306 aa)
kdsA3-deoxy-D-manno-octulosonate 8-phosphate synthase; Synthesis of KDO 8-P which is required for lipid A maturation and cellular growth. (284 aa)
lpxMMyristoyl-acyl carrier protein (ACP)-dependent acyltransferase; Catalyzes the transfer of myristate from myristoyl-acyl carrier protein (ACP) to Kdo(2)-(lauroyl)-lipid IV(A) to form Kdo(2)- lipid A. Can probably also catalyze the transfer of myristate to Kdo(2)-(palmitoleoyl)-lipid IV(A) to form the cold-adapted Kdo(2)-lipid A. In vitro, can acylate Kdo(2)-lipid IV(A), but acylation of (KDO)2- (lauroyl)-lipid IV(A) is about 100 times faster. In vitro, can use lauroyl-ACP but displays a slight kinetic preference for myristoyl-ACP. (323 aa)
wzzBRegulator of length of O-antigen component of lipopolysaccharide chains; Confers a modal distribution of chain length on the O-antigen component of lipopolysaccharide (LPS). Gives rise to a reduced number of short chain molecules and increases in numbers of longer molecules; Belongs to the WzzB/Cld/Rol family. (326 aa)
wbbKLipopolysaccharide biosynthesis protein; May be a glycosyltransferase involved in the transfer of UDP- GalF and UDP-glucose. (372 aa)
wbbJPutative lipopolysaccharide biosynthesis O-acetyl transferase; Putative O-acetyltransferase that transfers an O-acetyl group to the O antigen; Belongs to the transferase hexapeptide repeat family. (196 aa)
wbbId-Galf:alpha-d-Glc beta-1,6-galactofuranosyltransferase; Involved in the transfer of galactofuranose (Galf) onto an alpha-D-gluco-configured acceptor substrate to form a beta-1,6-linkage. It uses n-octyl alpha-D-glucopyranoside as an acceptor substrate for the addition of galactofuranose from the donor substrate UDP- galactofuranose. It is not able to use beta-D-glucopyranoside isomers. (330 aa)
wbbHO-antigen polymerase; May link the O-antigen tetrasaccharide units into long chains, giving rise to typical smooth LPS. (388 aa)
glfUDP-galactopyranose mutase, FAD/NAD(P)-binding; Catalyzes the interconversion through a 2-keto intermediate of uridine diphosphogalactopyranose (UDP-GalP) into uridine diphosphogalactofuranose (UDP-GalF); Belongs to the UDP-galactopyranose/dTDP-fucopyranose mutase family. (367 aa)
wzxBPutative polisoprenol-linked O-antigen transporter; May be involved in the translocation process of the nascent O-polysaccharide molecules and/or its ligation to lipid A core units. (415 aa)
rfbCdTDP-4-deoxyrhamnose-3,5-epimerase; Catalyzes the epimerization of the C3' and C5'positions of dTDP-6-deoxy-D-xylo-4-hexulose, forming dTDP-6-deoxy-L-lyxo-4-hexulose. Belongs to the dTDP-4-dehydrorhamnose 3,5-epimerase family. (185 aa)
rfbAGlucose-1-phosphate thymidylyltransferase; Catalyzes the formation of dTDP-glucose, from dTTP and glucose 1-phosphate, as well as its pyrophosphorolysis. Belongs to the glucose-1-phosphate thymidylyltransferase family. (293 aa)
rfbDdTDP-L-rhamnose synthase, NAD(P)-dependent dTDP-4-dehydrorhamnose reductase subunit; Involved in the biosynthesis of the dTDP-L-rhamnose which is an important component of lipopolysaccharide (LPS) (Probable). Catalyzes the reduction of dTDP-6-deoxy-L-lyxo-4-hexulose to yield dTDP-L-rhamnose (By similarity). RmlD uses NADH and NADPH nearly equally well (By similarity); Belongs to the dTDP-4-dehydrorhamnose reductase family. (299 aa)
rfbBdTDP-glucose 4,6 dehydratase, NAD(P)-binding; Catalyzes the dehydration of dTDP-D-glucose to form dTDP-6- deoxy-D-xylo-4-hexulose via a three-step process involving oxidation, dehydration and reduction; Belongs to the NAD(P)-dependent epimerase/dehydratase family. dTDP-glucose dehydratase subfamily. (361 aa)
wcaNPutative regulatory subunit for GalU; Protein involved in nucleotide-sugar biosynthetic process. (297 aa)
wcaMPutative colanic acid biosynthesis protein; Protein involved in colanic acid biosynthetic process. (464 aa)
wcaLPutative colanic acid biosynthesis glycosyl transferase; Protein involved in colanic acid biosynthetic process. (406 aa)
wcaKPutative galactokinase; Protein involved in colanic acid biosynthetic process. (426 aa)
wzxCPutative colanic acid exporter; Probable export protein; Belongs to the polysaccharide synthase family. (492 aa)
wcaJColanic biosynthesis UDP-glucose lipid carrier transferase; Is the initiating enzyme for colanic acid (CA) synthesis. Catalyzes the transfer of the glucose-1-phosphate moiety from UDP-Glc onto the carrier lipid undecaprenyl phosphate (C55-P), forming a phosphoanhydride bond yielding to glucosyl-pyrophosphoryl-undecaprenol (Glc-PP-C55). Also possesses a weak galactose-1-P transferase activity. Belongs to the bacterial sugar transferase family. (464 aa)
cpsGPhosphomannomutase; Involved in the biosynthesis of the capsular polysaccharide colanic acid; Belongs to the phosphohexose mutase family. (456 aa)
cpsBMannose-1-phosphate guanyltransferase; Involved in the biosynthesis of the capsular polysaccharide colanic acid. (478 aa)
hldEHeptose 7-phosphate kinase and heptose 1-phosphate adenyltransferase; Catalyzes the phosphorylation of D-glycero-D-manno-heptose 7- phosphate at the C-1 position to selectively form D-glycero-beta-D- manno-heptose-1,7-bisphosphate; In the N-terminal section; belongs to the carbohydrate kinase PfkB family. (477 aa)
srlQD-arabinose 5-phosphate isomerase; Catalyzes the reversible aldol-ketol isomerization between D- ribulose 5-phosphate (Ru5P) and D-arabinose 5-phosphate (A5P). It appears that the physiological function of G-API may be to synthesize the regulatory molecule A5P, which in turn participates in the induction of the gut operon through an unknown mechanism. It is also able of sustaining the biosynthetic pathway of 3-deoxy-D-manno- octulosonate (KDO), a unique 8-carbon sugar component of lipopolysaccharides (LPSs); Belongs to the SIS family. GutQ/KpsF subfamily. (321 aa)
lpxPPalmitoleoyl-acyl carrier protein (ACP)-dependent acyltransferase; Catalyzes the transfer of palmitoleate from palmitoleoyl-acyl carrier protein (ACP) to Kdo(2)-lipid IV(A) to form Kdo(2)- (palmitoleoyl)-lipid IV(A). Required for the biosynthesis of a distinct molecular species of lipid A, which is present only in cells grown at low temperatures. It may confer a selective advantage to cells growing at lower temperatures by making the outer membrane a more effective barrier to harmful chemicals. (306 aa)
arnT4-amino-4-deoxy-L-arabinose transferase; 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. (550 aa)
arnDUndecaprenyl phosphate-alpha-L-ara4FN deformylase; Catalyzes the deformylation of 4-deoxy-4-formamido-L- arabinose-phosphoundecaprenol to 4-amino-4-deoxy-L-arabinose- phosphoundecaprenol. The modified arabinose is attached to lipid A and is required for resistance to polymyxin and cationic antimicrobial peptides (Probable). (296 aa)
arnAFused UDP-L-Ara4N formyltransferase/UDP-GlcA C-4'-decarboxylase; Bifunctional enzyme that catalyzes the oxidative decarboxylation of UDP-glucuronic acid (UDP-GlcUA) to UDP-4-keto- arabinose (UDP-Ara4O) and the addition of a formyl group to UDP-4- amino-4-deoxy-L-arabinose (UDP-L-Ara4N) to form UDP-L-4-formamido- arabinose (UDP-L-Ara4FN). The modified arabinose is attached to lipid A and is required for resistance to polymyxin and cationic antimicrobial peptides; In the N-terminal section; belongs to the Fmt family. UDP- L-Ara4N formyltransferase subfamily. (660 aa)
arnCUndecaprenyl phosphate-L-Ara4FN 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; Belongs to the glycosyltransferase 2 family. (322 aa)
arnBUridine 5'-(beta-1-threo-pentapyranosyl-4-ulose diphosphate) aminotransferase, PLP-dependent; 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. (379 aa)
lpxTLipid A 1-diphosphate synthase; 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). In vitro, has low undecaprenyl-diphosphate phosphatase activity ; Belongs to the LpxT phosphotransferase family. (237 aa)
wcaAPutative glycosyl transferase; Putative regulator; Protein involved in colanic acid biosynthetic process. (279 aa)
wcaBPutative transferase; Protein involved in colanic acid biosynthetic process. (162 aa)
wcaCPutative glycosyl transferase; Protein involved in colanic acid biosynthetic process. (405 aa)
wcaIPutative colanic biosynthesis glycosyl transferase; Protein involved in colanic acid biosynthetic process. (407 aa)
wcaHGDP-mannose mannosyl hydrolase; Hydrolyzes both GDP-mannose and GDP-glucose. Could participate in the regulation of cell wall biosynthesis by influencing the concentration of GDP-mannose or GDP-glucose in the cell. Might also be involved in the biosynthesis of the slime polysaccharide colanic acid; Belongs to the Nudix hydrolase family. (159 aa)
wcaFPutative transferase; Protein involved in colanic acid biosynthetic process. (182 aa)
wcaEPutative colanic acid biosynthesis glycosyl transferase; Protein involved in colanic acid biosynthetic process. (248 aa)
wcaDPutative colanic acid polymerase. (405 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 (22%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.