Found 124 low-confidence and 72 medium-confidence steps on the best paths for 62 pathways.
Pathway | Step | Best candidate | 2nd candidate |
2-oxoglutarate | Psest_0084: 2-oxoglutarate TRAP transporter, fused 4TM/12TM components | LT39_RS09665 | LT39_RS05195 |
2-oxoglutarate | Psest_0085: 2-oxoglutarate TRAP transporter, solute receptor component | LT39_RS05205 | |
4-hydroxybenzoate | mhpD: 2-hydroxypentadienoate hydratase | | |
4-hydroxybenzoate | mhpE: 4-hydroxy-2-oxovalerate aldolase | LT39_RS07720 | LT39_RS07770 |
4-hydroxybenzoate | pcaK: 4-hydroxybenzoate transporter pcaK | LT39_RS07700 | |
4-hydroxybenzoate | pobA: 4-hydroxybenzoate 3-monooxygenase | | |
4-hydroxybenzoate | praA: protocatechuate 2,3-dioxygenase | | |
4-hydroxybenzoate | xylF: 2-hydroxymuconate semialdehyde hydrolase | LT39_RS11520 | |
acetate | actP: cation/acetate symporter ActP | | |
alanine | cycA: L-alanine symporter CycA | | |
arabinose | xacC: L-arabinono-1,4-lactonase | | |
arabinose | xacD: L-arabinonate dehydratase | LT39_RS12220 | LT39_RS04010 |
arabinose | xacE: 2-dehydro-3-deoxy-L-arabinonate dehydratase | | |
arginine | gabT: gamma-aminobutyrate transaminase | LT39_RS09315 | LT39_RS17915 |
arginine | patA: putrescine aminotransferase (PatA/SpuC) | LT39_RS09315 | LT39_RS17915 |
arginine | patD: gamma-aminobutyraldehyde dehydrogenase | LT39_RS03980 | LT39_RS09545 |
arginine | rocE: L-arginine permease | | |
asparagine | ans: asparaginase | LT39_RS18365 | LT39_RS16160 |
cellobiose | bgl: cellobiase | LT39_RS14850 | LT39_RS13975 |
cellobiose | glk: glucokinase | LT39_RS14210 | |
cellobiose | gtsA: glucose ABC transporter, substrate-binding component (GtsA) | LT39_RS16405 | |
cellobiose | gtsB: glucose ABC transporter, permease component 1 (GtsB) | LT39_RS16410 | LT39_RS19805 |
citrate | citM: citrate:cation:H+ symporter CitM | LT39_RS02045 | |
citrulline | AO353_03040: ABC transporter for L-Citrulline, ATPase component | LT39_RS05240 | LT39_RS00585 |
citrulline | AO353_03045: ABC transporter for L-Citrulline, permease component 2 | LT39_RS05235 | |
citrulline | AO353_03050: ABC transporter for L-Citrulline, permease component 1 | | |
citrulline | AO353_03055: ABC transporter for L-Citrulline, periplasmic substrate-binding component | LT39_RS05250 | |
citrulline | arcC: carbamate kinase | | |
citrulline | gabT: gamma-aminobutyrate transaminase | LT39_RS09315 | LT39_RS17915 |
citrulline | odc: L-ornithine decarboxylase | | |
citrulline | patA: putrescine aminotransferase (PatA/SpuC) | LT39_RS09315 | LT39_RS17915 |
citrulline | patD: gamma-aminobutyraldehyde dehydrogenase | LT39_RS03980 | LT39_RS09545 |
D-alanine | cycA: D-alanine:H+ symporter CycA | | |
D-alanine | dadA: D-alanine dehydrogenase | | |
D-lactate | D-LDH: D-lactate dehydrogenase | LT39_RS12340 | LT39_RS09685 |
D-serine | cycA: D-serine:H+ symporter CycA | | |
D-serine | dsdA: D-serine ammonia-lyase | LT39_RS02535 | LT39_RS02355 |
deoxyinosine | deoB: phosphopentomutase | LT39_RS09955 | LT39_RS05035 |
deoxyinosine | deoD: deoxyinosine phosphorylase | LT39_RS02880 | LT39_RS06385 |
deoxyinosine | nupC: deoxyinosine:H+ symporter NupC | | |
deoxyribonate | aacS: acetoacetyl-CoA synthetase | LT39_RS02910 | LT39_RS18840 |
deoxyribonate | deoxyribonate-dehyd: 2-deoxy-D-ribonate 3-dehydrogenase | LT39_RS14405 | LT39_RS05905 |
deoxyribonate | deoxyribonate-transport: 2-deoxy-D-ribonate transporter | | |
deoxyribonate | ketodeoxyribonate-cleavage: 2-deoxy-3-keto-D-ribonate cleavage enzyme | LT39_RS01295 | |
deoxyribose | deoK: deoxyribokinase | LT39_RS14800 | LT39_RS06395 |
deoxyribose | deoP: deoxyribose transporter | | |
fucose | aldA: lactaldehyde dehydrogenase | LT39_RS04155 | LT39_RS07935 |
fucose | fucA: L-fuculose-phosphate aldolase FucA | LT39_RS02315 | |
fucose | fucI: L-fucose isomerase FucI | | |
fucose | fucK: L-fuculose kinase FucK | | |
fucose | fucP: L-fucose:H+ symporter FucP | | |
fucose | fucU: L-fucose mutarotase FucU | | |
galactose | galK: galactokinase (-1-phosphate forming) | | |
galactose | galP: galactose:H+ symporter GalP | LT39_RS16075 | LT39_RS07700 |
galactose | galT: UDP-glucose:alpha-D-galactose-1-phosphate uridylyltransferase | | |
galacturonate | exuT: D-galacturonate transporter ExuT | | |
galacturonate | uxaA: D-altronate dehydratase | | |
galacturonate | uxaB: tagaturonate reductase | | |
gluconate | gntK: D-gluconate kinase | | |
gluconate | gntT: gluconate:H+ symporter GntT | LT39_RS03265 | LT39_RS04135 |
glucosamine | gamP: glucosamine PTS system, EII-CBA components (GamP/NagE) | | |
glucosamine | nagB: glucosamine 6-phosphate deaminase (isomerizing) | LT39_RS13495 | LT39_RS10200 |
glucose | glk: glucokinase | LT39_RS14210 | |
glucose | gtsA: glucose ABC transporter, substrate-binding component (GtsA) | LT39_RS16405 | |
glucose | gtsB: glucose ABC transporter, permease component 1 (GtsB) | LT39_RS16410 | LT39_RS19805 |
glucose-6-P | uhpT: glucose-6-phosphate:phosphate antiporter | | |
glucuronate | exuT: D-glucuronate:H+ symporter ExuT | | |
glucuronate | uxuA: D-mannonate dehydratase | LT39_RS03790 | LT39_RS04205 |
glucuronate | uxuB: D-mannonate dehydrogenase | | |
glycerol | glpD: glycerol 3-phosphate dehydrogenase (monomeric) | LT39_RS20215 | |
glycerol | glpF: glycerol facilitator glpF | | |
histidine | hutG: N-formiminoglutamate formiminohydrolase | LT39_RS17920 | |
histidine | hutH: histidine ammonia-lyase | | |
histidine | hutI: imidazole-5-propionate hydrolase | | |
histidine | hutU: urocanase | | |
histidine | permease: L-histidine permease | | |
isoleucine | acdH: (2S)-2-methylbutanoyl-CoA dehydrogenase | LT39_RS01525 | LT39_RS01410 |
isoleucine | Bap2: L-isoleucine permease Bap2 | | |
isoleucine | bkdB: branched-chain alpha-ketoacid dehydrogenase, E1 component beta subunit | LT39_RS15940 | LT39_RS09400 |
isoleucine | bkdC: branched-chain alpha-ketoacid dehydrogenase, E2 component | LT39_RS09390 | LT39_RS15935 |
isoleucine | ech: 2-methyl-3-hydroxybutyryl-CoA hydro-lyase | LT39_RS10065 | LT39_RS00050 |
isoleucine | ivdG: 3-hydroxy-2-methylbutyryl-CoA dehydrogenase | LT39_RS17515 | LT39_RS17715 |
isoleucine | pccA: propionyl-CoA carboxylase, alpha subunit | LT39_RS20420 | |
lactose | galK: galactokinase (-1-phosphate forming) | | |
lactose | galT: UDP-glucose:alpha-D-galactose-1-phosphate uridylyltransferase | | |
lactose | glk: glucokinase | LT39_RS14210 | |
lactose | lacP: lactose permease LacP | LT39_RS16075 | LT39_RS07700 |
lactose | lacZ: lactase (homomeric) | LT39_RS20035 | LT39_RS04160 |
leucine | aacS: acetoacetyl-CoA synthetase | LT39_RS02910 | LT39_RS18840 |
leucine | bkdB: branched-chain alpha-ketoacid dehydrogenase, E1 component beta subunit | LT39_RS15940 | LT39_RS09400 |
leucine | bkdC: branched-chain alpha-ketoacid dehydrogenase, E2 component | LT39_RS09390 | LT39_RS15935 |
leucine | leuT: L-leucine:Na+ symporter LeuT | | |
leucine | liuA: isovaleryl-CoA dehydrogenase | LT39_RS01525 | LT39_RS01410 |
leucine | liuB: 3-methylcrotonyl-CoA carboxylase, alpha (biotin-containing) subunit | LT39_RS20420 | |
leucine | liuC: 3-methylglutaconyl-CoA hydratase | LT39_RS05925 | LT39_RS10065 |
leucine | liuD: 3-methylcrotonyl-CoA carboxylase, beta subunit | LT39_RS19540 | LT39_RS16580 |
leucine | liuE: hydroxymethylglutaryl-CoA lyase | | |
lysine | davA: 5-aminovaleramidase | LT39_RS01375 | |
lysine | davB: L-lysine 2-monooxygenase | | |
lysine | davD: glutarate semialdehyde dehydrogenase | LT39_RS09545 | LT39_RS14635 |
lysine | davT: 5-aminovalerate aminotransferase | LT39_RS09315 | LT39_RS17915 |
lysine | gcdG: succinyl-CoA:glutarate CoA-transferase | LT39_RS09680 | LT39_RS04055 |
lysine | lysP: L-lysine:H+ symporter LysP | | |
maltose | glk: glucokinase | LT39_RS14210 | |
maltose | gtsA: glucose ABC transporter, substrate-binding component (GtsA) | LT39_RS16405 | |
maltose | gtsB: glucose ABC transporter, permease component 1 (GtsB) | LT39_RS16410 | LT39_RS19805 |
maltose | susB: alpha-glucosidase (maltase) | LT39_RS12245 | LT39_RS07910 |
mannitol | mtlA: mannitol phosphotransferase system, EII-CBA components | | |
mannitol | mtlD: mannitol-1-phosphate 5-dehydrogenase | | |
mannose | man-isomerase: D-mannose isomerase | | |
mannose | scrK: fructokinase | LT39_RS18665 | LT39_RS06395 |
mannose | TT_C0327: mannose ABC transporter, permease component 1 | | |
mannose | TT_C0328: mannose ABC transporter, substrate-binding component | LT39_RS16405 | |
myoinositol | iolG: myo-inositol 2-dehydrogenase | LT39_RS07755 | LT39_RS16400 |
myoinositol | iolM: 2-inosose 4-dehydrogenase | LT39_RS07740 | LT39_RS01720 |
myoinositol | iolN: 2,4-diketo-inositol hydratase | | |
myoinositol | iolO: 5-dehydro-L-gluconate epimerase | | |
myoinositol | iolT: myo-inositol:H+ symporter | LT39_RS16075 | LT39_RS07700 |
myoinositol | uxaE: D-tagaturonate epimerase | | |
myoinositol | uxuA: D-mannonate dehydratase | LT39_RS03790 | LT39_RS04205 |
myoinositol | uxuB: D-mannonate dehydrogenase | | |
NAG | nagA: N-acetylglucosamine 6-phosphate deacetylase | | |
NAG | nagB: glucosamine 6-phosphate deaminase (isomerizing) | LT39_RS13495 | LT39_RS10200 |
NAG | nagEcba: N-acetylglucosamine phosphotransferase system, EII-CBA components | | |
phenylacetate | paaA: phenylacetyl-CoA 1,2-epoxidase, subunit A | | |
phenylacetate | paaB: phenylacetyl-CoA 1,2-epoxidase, subunit B | | |
phenylacetate | paaC: phenylacetyl-CoA 1,2-epoxidase, subunit C | | |
phenylacetate | paaE: phenylacetyl-CoA 1,2-epoxidase, subunit E | | |
phenylacetate | paaF: 2,3-dehydroadipyl-CoA hydratase | LT39_RS10065 | LT39_RS00050 |
phenylacetate | paaJ1: 3-oxo-5,6-dehydrosuberyl-CoA thiolase | LT39_RS14505 | LT39_RS01195 |
phenylacetate | paaJ2: 3-oxoadipyl-CoA thiolase | LT39_RS14505 | LT39_RS01195 |
phenylacetate | paaK: phenylacetate-CoA ligase | LT39_RS18840 | LT39_RS00320 |
phenylacetate | paaT: phenylacetate transporter Paa | | |
phenylacetate | paaZ1: oxepin-CoA hydrolase | LT39_RS18835 | LT39_RS10065 |
phenylacetate | paaZ2: 3-oxo-5,6-didehydrosuberyl-CoA semialdehyde dehydrogenase | | |
phenylalanine | aroP: L-phenylalanine:H+ symporter AroP | | |
phenylalanine | paaA: phenylacetyl-CoA 1,2-epoxidase, subunit A | | |
phenylalanine | paaB: phenylacetyl-CoA 1,2-epoxidase, subunit B | | |
phenylalanine | paaC: phenylacetyl-CoA 1,2-epoxidase, subunit C | | |
phenylalanine | paaE: phenylacetyl-CoA 1,2-epoxidase, subunit E | | |
phenylalanine | paaF: 2,3-dehydroadipyl-CoA hydratase | LT39_RS10065 | LT39_RS00050 |
phenylalanine | paaJ1: 3-oxo-5,6-dehydrosuberyl-CoA thiolase | LT39_RS14505 | LT39_RS01195 |
phenylalanine | paaJ2: 3-oxoadipyl-CoA thiolase | LT39_RS14505 | LT39_RS01195 |
phenylalanine | paaK: phenylacetate-CoA ligase | LT39_RS18840 | LT39_RS00320 |
phenylalanine | paaZ1: oxepin-CoA hydrolase | LT39_RS18835 | LT39_RS10065 |
phenylalanine | paaZ2: 3-oxo-5,6-didehydrosuberyl-CoA semialdehyde dehydrogenase | | |
phenylalanine | PPDCalpha: phenylpyruvate decarboxylase, alpha subunit | LT39_RS15945 | LT39_RS12500 |
phenylalanine | PPDCbeta: phenylpyruvate decarboxylase, beta subunit | LT39_RS15940 | LT39_RS09400 |
proline | put1: proline dehydrogenase | LT39_RS20215 | |
proline | putA: L-glutamate 5-semialdeyde dehydrogenase | LT39_RS07935 | LT39_RS04155 |
proline | putP: proline:Na+ symporter | LT39_RS05680 | |
propionate | lctP: propionate permease | LT39_RS07665 | |
propionate | pccA: propionyl-CoA carboxylase, alpha subunit | LT39_RS20420 | |
putrescine | gabT: gamma-aminobutyrate transaminase | LT39_RS09315 | LT39_RS17915 |
putrescine | patA: putrescine aminotransferase (PatA/SpuC) | LT39_RS09315 | LT39_RS17915 |
putrescine | patD: gamma-aminobutyraldehyde dehydrogenase | LT39_RS03980 | LT39_RS09545 |
putrescine | puuP: putrescine:H+ symporter PuuP/PlaP | | |
pyruvate | MCT4: pyruvate symporter MCT4 (SLC16A3) | LT39_RS16495 | |
rhamnose | LRA1: L-rhamnofuranose dehydrogenase | LT39_RS00180 | LT39_RS14405 |
rhamnose | LRA2: L-rhamnono-gamma-lactonase | | |
rhamnose | LRA3: L-rhamnonate dehydratase | LT39_RS12145 | LT39_RS07820 |
rhamnose | LRA5: 2-keto-3-deoxy-L-rhamnonate 4-dehydrogenase | LT39_RS20235 | LT39_RS01720 |
rhamnose | rhaT: L-rhamnose:H+ symporter RhaT | | |
ribose | rbsK: ribokinase | LT39_RS14800 | LT39_RS06395 |
ribose | rbsU: probable D-ribose transporter RbsU | | |
serine | serP: L-serine permease SerP | | |
sorbitol | scrK: fructokinase | LT39_RS18665 | LT39_RS06395 |
sorbitol | SOT: sorbitol:H+ co-transporter SOT1 or SOT2 | LT39_RS16075 | LT39_RS07700 |
sucrose | ams: sucrose hydrolase (invertase) | LT39_RS16995 | |
threonine | gcvP: glycine cleavage system, P component (glycine decarboxylase) | LT39_RS04305 | LT39_RS04310 |
threonine | tdcC: L-threonine:H+ symporter TdcC | | |
thymidine | deoB: phosphopentomutase | LT39_RS09955 | LT39_RS05035 |
thymidine | nupG: thymidine permease NupG/XapB | | |
trehalose | glk: glucokinase | LT39_RS14210 | |
trehalose | gtsA: glucose ABC transporter, substrate-binding component (GtsA) | LT39_RS16405 | |
trehalose | gtsB: glucose ABC transporter, permease component 1 (GtsB) | LT39_RS16410 | LT39_RS19805 |
trehalose | treF: trehalase | LT39_RS10680 | |
tryptophan | aroP: tryptophan:H+ symporter AroP | | |
tyrosine | aacS: acetoacetyl-CoA synthetase | LT39_RS02910 | LT39_RS18840 |
tyrosine | aroP: L-tyrosine transporter (AroP/FywP) | | |
tyrosine | fahA: fumarylacetoacetate hydrolase | LT39_RS07800 | LT39_RS04565 |
tyrosine | hmgA: homogentisate dioxygenase | | |
tyrosine | HPD: 4-hydroxyphenylpyruvate dioxygenase | | |
tyrosine | maiA: maleylacetoacetate isomerase | | |
valine | acdH: isobutyryl-CoA dehydrogenase | LT39_RS01525 | LT39_RS01410 |
valine | Bap2: L-valine permease Bap2 | | |
valine | bch: 3-hydroxyisobutyryl-CoA hydrolase | LT39_RS00050 | |
valine | bkdB: branched-chain alpha-ketoacid dehydrogenase, E1 component beta subunit | LT39_RS15940 | LT39_RS09400 |
valine | bkdC: branched-chain alpha-ketoacid dehydrogenase, E2 component | LT39_RS09390 | LT39_RS15935 |
valine | mmsB: 3-hydroxyisobutyrate dehydrogenase | | |
valine | pccA: propionyl-CoA carboxylase, alpha subunit | LT39_RS20420 | |
xylitol | fruI: xylitol PTS, enzyme IIABC (FruI) | LT39_RS14805 | |
xylitol | x5p-reductase: D-xylulose-5-phosphate 2-reductase | LT39_RS07835 | LT39_RS19820 |
xylose | xad: D-xylonate dehydratase | LT39_RS04795 | LT39_RS19815 |
xylose | xylC: xylonolactonase | | |
xylose | xylT: D-xylose transporter | LT39_RS16075 | LT39_RS07700 |
This GapMind analysis is from Sep 24 2021. The underlying query database was built on Sep 17 2021.
Each pathway is defined by a set of rules based on individual steps or genes. Candidates for each step are identified by using
ublast (a fast alternative to protein BLAST)
against a database of manually-curated proteins (most of which are experimentally characterized) or by using
HMMer with enzyme models (usually from
TIGRFam). Ublast hits may be split across two different proteins.
Steps with no high- or medium-confidence candidates may be considered "gaps."
For the typical bacterium that can make all 20 amino acids, there are 1-2 gaps in amino acid biosynthesis pathways.
For diverse bacteria and archaea that can utilize a carbon source, there is a complete
high-confidence catabolic pathway (including a transporter) just 38% of the time, and
there is a complete medium-confidence pathway 63% of the time.
Gaps may be due to:
GapMind relies on the predicted proteins in the genome and does not search the six-frame translation. In most cases, you can search the six-frame translation by clicking on links to Curated BLAST for each step definition (in the per-step page).
If you notice any errors or omissions in the step descriptions, or any questionable results, please let us know