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. 2014 Jan 15;9(1):e85195. doi: 10.1371/journal.pone.0085195

Table 3. Essential enzymes and its associated reactions identified by FBA are categorized into specific metabolic systems of Category A bacteria. B: B. anthracis, F: F. tularensis, Y: Y. pestis.

Sl Genomes Gene EC# Functions Reactions
Amino acid biosynthesis
1 B hisD 1.1.1.23 Histidinol dehydrogenase L-histidinol+H(2)O+2 NAD(+) < = > L-histidine+2 NADH
2 B hisG 2.4.2.17 ATP phosphoribosyltransferase 1-(5-phospho-D-ribosyl)-ATP+diphosphate < = > ATP+5-phospho-alpha-D-ribose 1-diphosphate
3 B hisB 4.2.1.19 Imidazoleglycerol-phosphate dehydratase D-erythro-1-(imidazol-4-yl)glycerol 3-phosphate < = > 3-(imidazol-4-yl)-2-oxopropyl phosphate+H(2)O
4 B hisA 5.3.1.16 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase 1-(5-phosphoribosyl)-5-((5-phosphoribosylamino)methylideneamino)imidazole-4-carboxamide < = > 5-((5-phospho-1-deoxyribulos-1-ylamino)methylideneamino)-1-(5-phosphoribosyl)imidazole-4-carboxamide
5 B,Y Meth 2.1.1.13 5-methyltetrahydrofolate-homocysteine methyltransferase homocysteine-binding subunit 5-methyltetrahydrofolate+NAD(P)(+) < = > 5,10-methylenetetrahydrofolate+NAD(P)H
6 B metF 1.5.1.20 Methylenetetrahydrofolate reductase 5-methyltetrahydrofolate+L-homocysteine < = > tetrahydrofolate+L-methionine
7 F,Y metK 2.5.1.6 Methionine adenosyltransferase ATP+L-methionine+H(2)O < = > phosphate+diphosphate+S-adenosyl-L-methionine
8 Y mtnN 3.2.2.16/3.2.2.9 Methylthioadenosine nucleosidaseAdenosylhomocysteine nucleosidase S-methyl-5′-thioadenosine+H(2)O < = > S-methyl-5-thio-D-ribose+adenineS-adenosyl-L-homocysteine+H(2)O < = > S-(5-deoxy-D-ribos-5-yl)-L-homocysteine+adenine
9 B trpD 2.4.2.18 Anthranilate phosphoribosyltransferase N-(5-phospho-D-ribosyl)-anthranilate+diphosphate < = > anthranilate+5-phospho-alpha-D-ribose 1-diphosphate
10 B trpC 4.1.1.48 Indole-3-glycerol-phosphate synthase 1-(2-carboxyphenylamino)-1-deoxy-D-ribulose 5-phosphate < = > 1-C-(3-indolyl)-glycerol 3-phosphate+CO(2)+H(2)O
11 B trpF 5.3.1.24 Phosphoribosylanthranilate isomerase N-(5-phospho-beta-D-ribosyl)anthranilate < = > 1-(2-carboxyphenylamino)-1-deoxy-D-ribulose 5-phosphate
12 B dapH 2.3.1.89 Tetrahydrodipicolinate N-acetyltransferase Acetyl-CoA+(S)-2,3,4,5-tetrahydropyridine-2,6-dicarboxylate+H(2)O < = > CoA+L-2-acetamido-6-oxoheptanedioate
13 B dapB 1.3.1.26 Dihydrodipicolinate reductase (S)-2,3,4,5-tetrahydrodipicolinate+NAD(P)(+) < = > (S)-2,3-dihydrodipicolinate+NAD(P)H
14 B dapL 3.5.1.47 N-acetyldiaminopimelate deacetylase N-acetyl-LL-2,6-diaminoheptanedioate+H(2)O < = > acetate+LL-2,6-diaminoheptanedioate
15 B, Y dapF 5.1.1.7 Diaminopimelate epimerase LL-2,6-diaminoheptanedioate < = > meso-diaminoheptanedioate
16 B,Y lysA 4.1.1.20 Diaminopimelate decarboxylase Meso-2,6-diaminoheptanedioate < = > L-lysine+CO(2)
17 B aroA/aroH 5.4.99.5/2.5.1.54 Chorismate mutase/3-deoxy-7-phosphoheptulonate synthase Chorismate < = > prephenate Phosphoenolpyruvate+D-erythrose 4-phosphate+H(2)O < = > 3-deoxy-D-arabino-hept-2-ulosonate 7-phosphate+phosphate
18 Y speE 2.5.1.16 Spermidine synthase S-Adenosylmethioninamine+Putrescine < = > 5′-Methylthioadenosine+Spermidine
19 F gltX1 6.1.1.17 Glutamate-tRNA ligase ATP+L-glutamate+tRNA(Glu) < = > AMP+diphosphate+L-glutamyl-tRNA(Glu)
20 Y sped 4.1.1.50 Adenosylmethionine decarboxylase S-adenosyl-L-methionine < = > (5-deoxy-5-adenosyl)(3-aminopropyl)-methylsulfonium salt+CO(2)
21 B aroH 2.5.1.54 3-deoxy-7-phosphoheptulonate synthase Phosphoenolpyruvate+D-erythrose 4-phosphate+H(2)O < = > 3-deoxy-D-arabino-hept-2-ulosonate 7-phosphate+phosphate
22 B aroA 5.4.99.5 Chorismate mutase Chorismate < = > prephenate
Vitamins and cofactors biosynthesis
23 B,Y pabC 4.1.3.38 Aminodeoxychorismate lyase 4-amino-4-deoxychorismate < = > 4-aminobenzoate+pyruvate
24 B dfrA 1.5.1.3 Dihydrofolate reductase 5,6,7,8-tetrahydrofolate+NADP(+) < = > 7,8-dihydrofolate+NADPH
25 B,Y folP 2.5.1.15 Dihydropteroate synthase 2-amino-4-hydroxy-7,8-dihydropteridin-6-yl)methyl diphosphate+4-aminobenzoate < = > diphosphate+dihydropteroate
26 B,F,Y folE 3.5.4.16 GTP cyclohydrolase I GTP+H(2)O < = > formate+2-amino-4-hydroxy-6-(erythro-1,2,3-trihydroxypropyl)-dihydropteridine triphosphate
27 B,F,Y folB 4.1.2.25 Dihydroneopterin aldolase 2-amino-4-hydroxy-6-(D-erythro-1,2,3-trihydroxypropyl)-7,8-dihydropteridine < = > 2-amino-4-hydroxy-6-hydroxymethyl-7,8-dihydropteridine+glycolaldehyde
28 B,F,Y folC 6.3.2.12 Dihydrofolate synthase ATP+7,8-dihydropteroate+L-glutamate < = > ADP+phosphate+7,8-dihydropteroylglutamate ATP+tetrahydropteroyl-(gamma-Glu)(n)+L-glutamate < = > ADP+phosphate+tetrahydropteroyl-(gamma-Glu)(n+1)
29 B,F,Y coaE 2.7.1.24 Dephospho-CoA kinase ATP+3′-dephospho-CoA < = > ADP+CoA
30 Y coaA 2.7.1.33 Pantothenate kinase ATP+(R)-pantothenate < = > ADP+(R)-4′-phosphopantothenate
31 B,F,Y coaD 2.7.7.3 Pantetheine-phosphate adenylyltransferase ATP+pantetheine 4′-phosphate < = > diphosphate+3′-dephospho-CoA
32 B nadD 2.7.7.18 Nicotinate-nucleotide adenylyltransferase ATP+nicotinate ribonucleotide < = > diphosphate+deamido-NAD(+)
33 F nadV 2.4.2.12 Nicotinamide phosphoribosyltransferase Nicotinamide D-ribonucleotide+diphosphate < = > nicotinamide+5-phospho-alpha-D-ribose 1-diphosphate
34 F,Y ppnK 2.7.1.23 NAD(+) kinase ATP+NAD(+) < = > ADP+NADP(+)
35 B,F,Y Dfp (coaB and coaC) 4.1.1.36/6.3.2.5 Phosphopantothenoyl-cysteine decarboxylase Phosphopantothenate-cysteine ligase N-((R)-4′-phosphopantothenoyl)-L-cysteine < = > pantotheine 4′-phosphate+CO(2)CTP+(R)-4′-phosphopantothenate+L-cysteine < = > CMP+PPi+N-((R)-4′-phosphopantothenoyl)-L-cysteine
36 F hemE 4.1.1.37 Uroporphyrinogen decarboxylase Uroporphyrinogen III < = > coproporphyrinogen+4 CO(2)
37 F hemC 2.5.1.61 Hydroxymethylbilane synthase 4 porphobilinogen+H(2)O < = > hydroxymethylbilane+4 NH(3)
38 F hemF 1.3.3.3 Coproporphyrinogen oxidase Coproporphyrinogen-III+O(2)+2 H(+) < = > protoporphyrinogen-IX+2 CO(2)+2 H(2)O
39 F hemB 4.2.1.24 Porphobilinogen synthase 2 5-aminolevulinate < = > porphobilinogen+2 H(2)O
40 F hemD 4.2.1.75 Uroporphyrinogen-III synthase Hydroxymethylbilane < = > uroporphyrinogen III+H(2)O
41 F hemH 4.99.1.1 Ferrochelatase Protoheme+2 H(+) < = > protoporphyrin+Fe(2+)
42 F hemL 5.4.3.8 Glutamate-1-semialdehyde 2,1-aminomutase (S)-4-amino-5-oxopentanoate < = > 5-aminolevulinate
43 F,Y ribC (ribF) 2.7.1.26/2.7.7.2 Riboflavin kinaseFAD synthetase ATP+riboflavin < = > ADP+FMNATP+FMN < = > diphosphate+FAD
44 Y ribA 3.5.4.25 GTP cyclohydrolase II GTP+3 H(2)O < = > formate+2,5-diamino-6-hydroxy-4-(5-phospho-D-ribosylamino)pyrimidine+diphosphate
45 F,Y ribD 1.1.1.193/3.5.4.26 5-amino-6-(5-phosphoribosylamino)uracil reductase Diaminohydroxyphosphoribosylaminopyrimidine deaminase 5-amino-6-(5-phospho-D-ribitylamino)uracil+NADP(+) < = > 5-amino-6-(5-phospho-D-ribosylamino)uracil+NADPH2,5-diamino-6-hydroxy-4-(5-phosphoribosylamino)pyrimidine+H(2)O < = > 5-amino-6-(5-phosphoribosylamino)uracil+NH(3)
46 F ubiC 4.1.3.40 Chorismate lyase Chorismate < = > 4-hydroxybenzoate+pyruvate
Non-mevalonate pathway for isoprenoid biosynthesis
47 F ispH 1.17.1.2 4-hydroxy-3-methylbut-2-enyl diphosphate reductase Isopentenyl diphosphate+NAD(P)(+)+H(2)O < = > (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate+NAD(P)HDimethylallyl diphosphate+NAD(P)(+)+H(2)O < = > (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate+NAD(P)H
48 F ispD 2.7.7.60 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase CTP+2-C-methyl-D-erythritol 4-phosphate < = > diphosphate+4-(cytidine 5′-diphospho)-2-C-methyl-D-erythritol
49 F ispF 4.6.1.12 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase 2-phospho-4-(cytidine 5′-diphospho)-2-C-methyl-D-erythritol < = > 2-C-methyl-D-erythritol 2,4-cyclodiphosphate+CMP
50 F Dxs 2.2.1.7 1-deoxy-D-xylulose-5-phosphate synthase Pyruvate+D-glyceraldehyde 3-phosphate < = > 1-deoxy-D-xylulose 5-phosphate+CO(2)
51 F uppS 2.5.1.31 Di-trans,poly-cis-undecaprenyl-diphosphate synthase ((2E,6E)-farnesyl- diphosphate specific) (2E,6E)-farnesyl diphosphate+8 isopentenyl diphosphate < = > 8 diphosphate+di-trans,octa-cis-undecaprenyl diphosphate
52 F ispE 2.7.1.148 4-(cytidine 5′-diphospho)-2-C-methyl-D-erythritol kinase ATP+4-(cytidine 5′-diphospho)-2-C-methyl-D-erythritol < = > ADP+2-phospho-4-(cytidine 5′-diphospho)-2-C-methyl-D-erythritol
53 F Dxr 1.1.1.267 1-deoxy-D-xylulose-5-phosphate reductoisomerase 2-C-methyl-D-erythritol 4-phosphate+NADP(+) < = > 1-deoxy-D-xylulose 5-phosphate+NADPH
Nucleotides biosynthesis
54 B,F,Y Gmk 2.7.4.8 Guanylate kinase ATP+GMP < = > ADP+GDP
55 B,F,Y Tmk 2.7.4.9 dTMP kinase ATP+dTMP < = > ADP+dTDP
56 F deoD 2.4.2.1 Purine-nucleoside phosphorylase Purine nucleoside+phosphate < = > purine+alpha-D-ribose 1-phosphate
Fatty acid metabolism
57 B fadB 1.1.1.35/4.2.1.17/5.3.3.8 Enoyl-CoA hydratase Delta(3) -cis-delta(2,3-hydroxyacyl-CoA dehydrogenase -trans-enoyl-CoA isomerase S)-3-hydroxyacyl-CoA+NAD(+) < = > 3-oxoacyl-CoA+NADH(3S)-3-hydroxyacyl-CoA < = > trans-2(or 3)-enoyl-CoA+H(2)O(3Z)-dodec-3-enoyl-CoA < = > (2E)-dodec-2-enoyl-CoA
58 B fadA 2.3.1.16 3-ketoacyl-CoA thiolase Acyl-CoA+acetyl-CoA < = > CoA+3-oxoacyl-CoA
Phospholipid biosynthesis
59 B ugtP 2.4.1.-2.4.1.157 Glucosyldiacylglycerol 6-beta-glucosyltransferase 1,2-diacylglycerol 3-glucosyltransferase UDP-glucose+1,2-diacyl-sn-glycerol < = > UDP+3-D-glucosyl-1,2-diacyl-sn-glycerol3-D-Glucosyl-1,2-diacylglycerol+UDP-glucose < = > beta-D-glucosyl-1,6-beta-D-glucosyl-1,3-diacylglycerol+UDP
60 B,F cdsA 2.7.7.41 Phosphatidate cytidylyltransferase CTP+phosphatidate < = > diphosphate+CDP-diacylglycerol
61 B,F,Y psd 4.1.1.65 Phosphatidylserine decarboxylase Phosphatidyl-L-serine < = > phosphatidylethanolamine+CO(2)
62 Y,F pssA 2.7.8.8 CDP-diacylglycerol–serine O-phosphatidyltransferase CDP-diacylglycerol+L-serine < = > CMP+(3-sn-phosphatidyl)-L-serine
Cell wall biosynthesis
63 B,F mraY 2.7.8.13 Phospho-N-acetylmuramoyl-pentapeptide-transferase UDP-Mur2Ac (oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)+undecaprenyl phosphate < = > UMP+Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)-diphosphoundecaprenol
64 B glum 2.3.1.157/2.7.7.23 Glucosamine-1-phosphate acetyltransferase UDP-N-acetylglucosamine pyrophosphorylase Acetyl-CoA+alpha-D-glucosamine 1-phosphate < = > CoA+N-acetyl-alpha-D-glucosamine 1-phosphateUTP+N-acetyl-alpha-D-glucosamine 1-phosphate < = > diphosphate+UDP-N-acetyl-D-glucosamine
65 B gale 5.1.3.2/5.1.3.7 UDP-glucose 4-epimerase UDP-N-acetylglucosamine 4-epimerase UDP-glucose < = > UDP-galactoseUDP-N-acetyl-D-glucosamine < = > UDP-N-acetyl-D-galactosamine
66 B,F glmM 5.4.2.10 Phosphoglucosamine mutase Alpha-D-glucosamine 1-phosphate < = > D-glucosamine 6-phosphate
67 F,Y lpxA 2.3.1.129 Acyl-[acyl-carrier-protein]–UDP-N-acetylglucosamine O-acyltransferase R)-3-hydroxytetradecanoyl-[acyl-carrier-protein]+UDP-N-acetylglucosamine < = > [acyl-carrier-protein]+UDP-3-O-(3-hydroxytetradecanoyl)-N-acetylglucosamine
68 F,Y lpxB 2.4.1.182 Lipid-A-disaccharide synthase UDP-2,3-bis(3-hydroxytetradecanoyl)glucosamine+2,3-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl 1-phosphate < = > UDP+2,3-bis(3-hydroxytetradecanoyl)-D-glucosaminyl-1,6-beta-D-2,3-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl 1-phosphate
69 F murG 2.4.1.227 Undecaprenyldiphosphomuramoylpentapeptide beta-N- acetylglucosaminyltransferase UDP-N-acetylglucosamine+Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)-diphosphoundecaprenol < = > UDP+GlcNAc-(1→4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)-diphosphoundecaprenol
70 F murB 1.1.1.158 UDP-N-acetylmuramate dehydrogenase UDP-N-acetylmuramate+NADP(+) < = > UDP-N-acetyl-3-O-(1-carboxyvinyl)-D-glucosamine+NADPH
71 F,Y kdsA 2.5.1.55 3-deoxy-8-phosphooctulonate synthase Phosphoenolpyruvate+D-arabinose 5-phosphate+H(2)O < = > 2-dehydro-3-deoxy-D-octonate 8-phosphate+phosphate
72 F murA 2.5.1.7 UDP-N-acetylglucosamine 1-carboxyvinyltransferase Phosphoenolpyruvate+UDP-N-acetyl-D-glucosamine < = > phosphate+UDP-N-acetyl-3-O-(1-carboxyvinyl)-D-glucosamine
73 F,Y lpxK 2.7.1.130 Tetraacyldisaccharide 4′-kinase ATP+(2-N,3-O-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl)-(1→6)-(2-N,3-O-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl phosphate) < = > ADP+(2-N,3-O-bis(3-hydroxytetradecanoyl)-4-O-phosphono-beta-D-glucosaminyl)-(1→6)-(2-N,3-O-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl phosphate)
74 F,Y kdsB 2.7.7.38 3-deoxy-manno-octulosonate cytidylyltransferase CTP+3-deoxy-D-manno-octulosonate < = > diphosphate+CMP-3-deoxy-D-manno-octulosonate
75 F murF 6.3.2.10 UDP-N-acetylmuramoyl-tripeptide–D-alanyl-D-alanine ligase ATP+UDP-N-acetylmuramoyl-L-alanyl-gamma-D-glutamyl-L-lysine+D-alanyl-D-alanine < = > ADP+phosphate+UDP-N-acetylmuramoyl-L-alanyl-gamma-D-glutamyl-L-lysyl-D-alanyl-D-alanine
76 F murD 6.3.2.9 UDP-N-acetylmuramoyl-L-alanine–D-glutamate ligase ATP+UDP-N-acetylmuramoyl-L-alanine+glutamate < = > ADP+phosphate+UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
77 F murI 5.1.1.3 Glutamate racemase L-glutamate < = > D-glutamate
78 Y kdsC 3.1.3.45 3-deoxy-manno-octulosonate-8-phosphatase 3-deoxy-D-manno-octulosonate 8-phosphate+H(2)O < = > 3-deoxy-D-manno-octulosonate+phosphate
79 Y hldD 5.1.3.20 ADP-glycero-manno-heptose 6-epimerase ADP-D-glycero-D-manno-heptose < = > ADP-L-glycero-D-manno-heptose
Carbohydrate metabolism
80 Y glgA 2.4.1.21 Starch synthase ADP-glucose+(1,4-alpha-D-glucosyl)(n) < = > ADP+(1,4-alpha-D-glucosyl)(n+1)
81 Y rhaB 2.7.1.5 Rhamnulokinase ATP+L-rhamnulose < = > ADP+L-rhamnulose 1-phosphate
82 Y lyx 2.7.1.53 L-xylulokinase ATP+L-xylulose < = > ADP+L-xylulose 5-phosphate
83 Y ksdD 5.3.1.13 Arabinose-5-phosphate isomerase D-Arabinose 5-phosphate < = > D-Ribulose 5-phosphate