an oxidized electron donor

a reduced electron donor

a deaminated amino group acceptor

an aminated amino group acceptor

Charged-LEU-tRNAs

LEU-tRNAs

a 2-oxo acid

an amino acid

an acyl-CoA

a carboxylate

an oxidized ferredoxin [iron-sulfur] cluster

a reduced ferredoxin [iron-sulfur] cluster

NAD(P)H

NAD(P)+

an L-tyrosyl-[tRNAtyr]

a tRNAtyr

(2Z,4Z)-2-hydroxy-5-carboxymuconate-6-semialdehyde

4α,14α-dimethyl-porifersta-8,25(27)-dienol

2-amino-4,5-dihydroxy-6-oxo-7-(phosphooxy)heptanoate

4-methylcyclohex-1,5-diene-1-carbonyl-CoA

isoshowacene

2-hydroxyhexadecanal

16-sinapoyloxypalmitate

3-methylquinolin-2-ol

(22R)-hydroxycholesterol

N-(2-methylpropyl)hydroxylamine

chloroeremomycin

3-hydroxy-3-methylbutanoate

2',3',4'-O-methyl-rhamnosyl tetracyclic spinosyn pseudoaglycone

2',3'-O-methyl-rhamnosyl tetracyclic spinosyn pseudoaglycone

2'-O-methyl-rhamnosyl tetracyclic spinosyn pseudoaglycone

rhamnosyl tetracyclic spinosyn pseudoaglycone

rhamnosyl tricyclic spinosyn pseudoaglycone

spinosyn tricyclic macrolactone

11-dehydro-15-oxo spinosyn macrolactone

15-oxo spinosyn macrolactone

spinosyn macrolactone

diethylamine N-oxide

triethylamine N-oxide

UDP-2-acetamido-2-deoxy-α-D-ribo-hex-3-uluronate

nitroxyl

trans,octacis-decaprenylphospho-β-D-arabinofuranose

1,3-dihydro-2H-imidazol-2-one

2-phenylethyl β-D-glucopyranoside

formyl hopane

ribosyl hopane

adenosyl hopane

(2Z)-2-hydroxypenta-2,4-dienoate

(2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinate

(2Z)-2,4-dihydroxypent-2-enoate

(2E,7Z,10Z,13Z,16Z,19Z)-docosahexaenoyl-CoA

(3R,5Z,8Z,11Z,14Z,17Z)-3-hydroxydocosapentaenoyl-CoA

(5Z,8Z,11Z,14Z,17Z)-3-oxodocosapentaenoyl-CoA

(+)-3'-hydroxylarreatricin

(+)-larreatricin

2-trans,4-trans-xanthoxin

glutathione disulfide

2,5-diamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one

coenzyme B

CoB-CoM heterodisulfide

dihydromethanophenazine

(2S)-2-isopropyl-3-oxosuccinate

3-ethylmalate

2-dehydro-3-deoxy-D-galactonate 6-phosphate

4-phosphooxy-L-threonine

D-erythro-imidazole-glycerol-phosphate

histidinal

(indol-3-yl)acetamide

2-oxovalerate

3-amino-1-hydroxyacetone 1-phosphate

2-dehydro-3-deoxy-D-galactonate

(2S)-2-amino-3-oxo-4-phosphooxybutanoate

methanophenazine

bisorganyltrisulfane

enol-phenylpyruvate

pyruvic oxime

1,2-dihydro-β-NADP

aminoacetone

butyramide

propionamide

acrylamide

4-fumaryl-acetoacetate

(2Z,4E)-2-hydroxyhexa-2,4-dienedioate

1-deoxy-L-glycero-tetrulose 4-phosphate

5-amino-6-(D-ribitylamino)uracil

5-amino-6-(5-phospho-D-ribitylamino)uracil

5-amino-6-(5-phospho-D-ribosylamino)uracil

2-C-methyl-D-erythritol 4-phosphate

2-maleylacetate

propanoyl phosphate

4'-phosphopantetheine

4-methyl-3-oxoadipate

7-carboxy-7-deazaguanine

(2S,3S)-2,3-dihydroxy-5-oxohexanedioate

tartronate semialdehyde

hydroxypyruvate

2-dehydro-3-deoxy-D-gluconate

2-dehydro-3-deoxy-D-gluconate 6-phosphate

4-prenylphlorisobutyrophenone

3-(O-geranylgeranyl)-sn-glycerol 1-phosphate

(S)-4-amino-5-oxopentanoate

carbon monoxide

quinolinate

2-oxopent-4-enoate

(S)-4-hydroxy-2-oxopentanoate

carbonic acid

γ-L-glutamyl 5-phosphate

urea

urea-1-carboxylate

orotidine 5'-phosphate

(S)-2-acetolactate

(S)-2-aceto-2-hydroxybutanoate

formamide

2-iminoacetate

2'-(5''-triphospho-α-D-ribosyl)-3'-dephospho-CoA

2-methyl-1,4-benzoquinone

methyl-1,4-benzoquinol

D-gluconate 6-phosphate

(R)-1-amino-2-propanol O-2-phosphate

5,6-dimethylbenzimidazole

β-nicotinate D-ribonucleotide

α-ribazole 5'-phosphate

hydrogenobyrinate

hydrogenobyrinate a,c-diamide

3-deoxy-D-arabino-heptulosonate 7-phosphate

shikimate

3-dehydroshikimate

4-amino-2-methyl-5-(phosphooxymethyl)pyrimidine

4-amino-2-methyl-5-(diphosphooxymethyl)pyrimidine

3-ureidopropanoate

mesaconate

citrate

N-acetylglutamyl-phosphate

N-acetyl-L-glutamate 5-semialdehyde

O-ureido-L-homoserine

L-arginino-succinate

canavaninosuccinate

L-canavanine

4-methyl-2-oxopentanoate

α-D-glucosamine 1-phosphate

acetoacetate

L-quinate

3-dehydroquinate

(R)-4'-phosphopantothenate

(R)-pantothenate

ethanolamine

oxaloacetate

isochorismate

(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate

N-acetyl-β-D-glucosamine-1,6-anhydro-N-acetyl-β-D-muramate

prephenate

N-(5-phosphoribosyl)-anthranilate

anthranilate

nicotinate adenine dinucleotide

ammonia

hydroxylamine

8-amino-7-oxononanoate

(3R,5S)-3-hydroxy-1-pyrroline-5-carboxylate

5-dehydro-4-deoxy-D-glucarate

2-deoxygluconate

3-dehydro-2-deoxy-D-gluconate

preuroporphyrinogen

5-aminolevulinate

porphobilinogen

selenophosphate

salicyl alcohol

methylsalicylate

thiamine phosphate

thiamine diphosphate

N⁵-carboxyaminoimidazole ribonucleotide

5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate

5'-phosphoribosyl-4-(N-succinocarboxamide)-5-aminoimidazole

5-amino-1-(5-phospho-β-D-ribosyl)imidazole

formate

5-phospho-β-D-ribosylamine

N¹-(5-phospho-β-D-ribosyl)glycinamide

N²-formyl-N¹-(5-phospho-β-D-ribosyl)glycinamide

2-(formamido)-N¹-(5-phospho-β-D-ribosyl)acetamidine

imidazole acetol-phosphate

DNA without lesion

coproporphyrinogen III

(S)-dihydroorotate

carboxyphosphate

(R)-2,3-dihydroxy-3-methylpentanoate

(S)-3-methyl-2-oxopentanoate

glycerone phosphate

O-acetyl-L-serine

2-C-methyl-D-erythritol-2,4-cyclodiphosphate

butanoyl phosphate

N-acetyl-α-D-glucosaminyldiphospho-ditrans,octacis-undecaprenol

ManNAc-GlcNAc-PP-undecaprenol

S-methyl-5'-thioadenosine

S-methyl-5-thio-α-D-ribose 1-phosphate

5-(methylsulfanyl)-ribulose 1-phosphate

deethylsimazine

N-ethylammeline

1-pyrroline

2,5-dioxopentanoate

prenyl diphosphate

isopentenyl diphosphate

(E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate

hydrogen peroxide

7,8-diaminopelargonate

pimelate

pimeloyl-CoA

dethiobiotin

lipid X

lipid A disaccharide (E. coli)

lipid IV_A

3-deoxy-α-D-manno-2-octulosonate

3-deoxy-D-manno-octulosonate 8-phosphate

4-amino-4-deoxychorismate

3-phosphooxypyruvate

(2S)-2-isopropylmalate

(2R,3S)-3-isopropylmalate

2-isopropylmaleate

L-histidinol phosphate

histidinol

glycolate

3-methyl-2-oxobutanoate

2-dehydropantoate

H₂O

H₂

carbamoyl phosphate

phosphoenolpyruvate

shikimate 3-phosphate

5-enolpyruvoyl-shikimate 3-phosphate

CO₂

S-adenosyl 3-(methylsulfanyl)propylamine

4-aminobutanoate

2-iminosuccinate

2-iminopropanoate

2-iminobutanoate

4-methylphenol

L-homocysteine

dTDP-4-dehydro-6-deoxy-α-D-glucopyranose

sn-glycerol 1-phosphate

sn-glycerol 3-phosphate

hydrogen cyanide

DNA with lesion

ethylphosphate

cob(I)yrinate a,c-diamide

cob(I)inamide

adenosyl-cob(III)yrinate a,c-diamide

adenosylcobyrate

adenosylcobinamide

adenosyl-cobinamide phosphate

cobalt-precorrin-4

cobalt-precorrin-5A

cobalt-precorrin-5B

cobalt-precorrin-6A

cob(II)yrinate c-monoamide

cob(II)yrinate a,c-diamide

cobyrinate

Mg-protoporphyrin

cob(I)alamin

adenosylcobalamin

protoheme

uroporphyrinogen-I

uroporphyrinogen-III

protoporphyrin IX

protoporphyrinogen IX

siroheme

oxygen

hydrogen sulfide

2-chloroacetate

(R)-glycerate

3-phospho-D-glyceroyl-phosphate

2-phospho-D-glycerate

3-phospho-D-glycerate

(2R)-2,3-dihydroxy-3-methylbutanoate

3-cyanopyridine

propionitrile

acrylonitrile

preQ₀

(indole-3-yl)acetonitrile

n-butyronitrile

5-chloro-5-deoxy-D-ribonate

5-chloro-4-hydroxy-2-oxopentanoate

Fe³⁺

K⁺

ammonium

H⁺

Fe²⁺

Mg²⁺

Co²⁺

nitrate

selenide

OH^-

hydrogencarbonate

superoxide

nitrite

phosphonate

phosphate

triphosphate

diphosphate

chloride

hydroxyl radical

(2E,6E)-farnesyl diphosphate

glycerophosphoglycerol

glycerophosphoserine

sn-glycero-3-phosphoethanolamine

2-aminoprop-2-enoate

(2Z)-2-aminobut-2-enoate

4-aminobutanal

cadaverine

spermidine

putrescine

glutathione

methanethiol

S-sulfanylglutathione

2-(2-carboxy-4-methylthiazol-5-yl)ethyl phosphate

2-[(2R,5Z)-2-carboxy-4-methylthiazol-5(2H)-ylidene]ethyl phosphate

5-(2-hydroxyethyl)-4-methylthiazole

4-methyl-5-(2-phosphooxyethyl)thiazole

taurine

coenzyme M

(2R)-3-sulfolactate

(2R)-phospho-3-sulfolactate

all-trans-retinyl palmitate

cis-dienelactone

trans-dienelactone

malonyl-CoA

3'-dephospho-CoA

(S)-3-hydroxy-3-methylglutaryl-CoA

4-hydroxybutanoyl-CoA

2-methylacetoacetyl-CoA

isobutanoyl-CoA

acetyl-CoA

(R)-2-hydroxyglutaryl-CoA

(E)-glutaconyl-CoA

succinyl-CoA

(S)-methylmalonyl-CoA

(R)-methylmalonyl-CoA

crotonyl-CoA

oleoyl-CoA

18-hydroxylinoleoyl-CoA

(S)-3-hydroxybutanoyl-CoA

propanoyl-CoA

butanoyl-CoA

lauroyl-CoA

cis-vaccenoyl-CoA

palmitoyl-CoA

palmitoleoyl-CoA

myristoyl-CoA

3-oxoadipyl-CoA

4-methyl-3-oxoadipyl-CoA

acetoacetyl-CoA

3-oxopentanoyl-CoA

methyl (indol-3-yl)acetate

(indol-3-yl)acetate

nicotinamide

nicotinate

riboflavin

all-trans-retinol

7,8-dihydrofolate monoglutamate

5,10-methylene-tetrahydromethanopterin

tetrahydromethanopterin

FAD

FMNH₂

FMN

(R)-NADHX

(S)-NADHX

NADPH

NADH

NADP⁺

NAD⁺

caldariellaquinone

caldariellaquinol

menaquinol-8

demethylmenaquinol-8

ppGpp

2'-deoxyinosine

2'-deoxyadenosine

1-(5-phospho-β-D-ribosyl)-ATP

1-(5-phospho-β-D-ribosyl)-AMP

isoguanine

8-oxo-dGTP

8-oxo-GTP

dIDP

dITP

IDP

ITP

dGDP

dADP

XTP

adenylo-succinate

hypoxanthine

GMP

dATP

dGTP

pppGpp

IMP

XMP

GTP

GDP

5'-deoxyadenosine

AMP

ATP

ADP

(5R)-5,6-dihydro-5-(thymidin-7-yl)thymidine (in DNA)

two adjacent thymidines in DNA

guanosine

adenosine

inosine

cytidine

uridine

2'-deoxycytidine

2'-deoxyuridine

thymidine

cyclic di-3',5'-guanylate

2-hydroxy-dATP

5-hydroxy-CTP

dTTP

dCTP

dUTP

UTP

CTP

dUMP

dTMP

dCMP

CMP

UMP

dUDP

dTDP

dCDP

CDP

UDP

2-sulfanyl-N⁶-dimethylallyladenosine³⁷ in tRNA

2-methylsulfanyl-N⁶-dimethylallyladenosine³⁷ in tRNA

GDP-4-dehydro-α-D-rhamnose

GDP-α-D-mannose

GDP-β-L-fucose

ADP-α-D-glucose

preQ₁

uracil

thymine

guanine

adenine

5,6-dihydrouracil

5,6-dihydrothymine

CMP-3-deoxy-β-D-manno-octulosonate

UDP-α-D-glucose

dTDP-α-D-glucose

UDP-α-D-galactose

UDP-N-acetyl-α-D-mannosamine

UDP-3-O-(3-hydroxymyristoyl)-α-D-glucosamine

UDP-3-O-[(3R)-3-hydroxymyristoyl]-N-acetyl-α-D-glucosamine

UDP-2-N,3-O-bis[(3R)-3-hydroxytetradecanoyl]-α-D-glucosamine

UDP-N-acetyl-α-D-glucosamine-enolpyruvate

UDP-N-acetyl-α-D-muramate

UDP-N-acetyl-α-D-muramoyl-L-alanine

UDP-N-acetyl-α-D-muramoyl-L-alanyl-D-glutamate

UDP-N-acetyl-α-D-muramoyl-L-alanyl-γ-D-glutamyl-L-lysyl-D-alanine

UDP-N-acetyl-α-D-muramoyl-L-alanyl-γ-D-glutamyl-L-lysyl-D-alanyl-D-alanine

UDP-N-acetyl-α-D-muramoyl-L-alanyl-γ-D-glutamyl-meso-2,6-diaminopimeloyl-D-alanyl-D-alanine

UDP-N-acetyl-α-D-muramoyl-L-alanyl-γ-D-glutamyl-meso-2,6-diaminopimelate

UDP-N-acetyl-α-D-glucosamine

dTDP-β-L-rhamnose

dTDP-4-dehydro-β-L-rhamnose

4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol

2-phospho-4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol

coenzyme A

thio-molybdenum cofactor

MoO₂-molybdopterin cofactor

guanylyl molybdenum cofactor

(S)-1-pyrroline-5-carboxylate

precorrin-6A

precorrin-3A

precorrin-6B

precorrin-7

precorrin-8x

precorrin-1

precorrin-2

sirohydrochlorin

hydantoin

6,7-dimethyl-8-(1-D-ribityl)lumazine

reduced riboflavin

6-(hydroxymethyl)-7,8-dihydropterin

(7,8-dihydropterin-6-yl)methyl diphosphate

2-amino-6-[1-hydroxyethyl]-7-methyl-7,8-dihydropterin

[1-(2-amino-7-methyl-4-oxo-7,8-dihydro-3H-pteridin-6-yl)]ethyl diphosphate

7,8-dihydroneopterin 3'-triphosphate

7,8-dihydropteroate

6-carboxy-5,6,7,8-tetrahydropterin

(6R)-6-pyruvoyl-5,6,7,8-tetrahydropterin

orotate

salicyl-6-hydroxy-2-cyclohexene-on-oyl

6-hydroxy-2-cyclohexen-one-carboxylate

indole

(1S,2R)-1-C-(indol-3-yl)glycerol 3-phosphate

2,3-dihydroxybenzoate

protocatechuate

salicylate

4-aminobenzoate

diacetyl

methylglyoxal

1-propanal

butan-1-al

acetaldehyde

L-glyceraldehyde

D-glyceraldehyde

aldehydo-D-ribose

α-D-ribofuranose

β-D-ribofuranose

β-D-mannopyranose

aldehydo-D-mannose

butan-1-ol

propan-1-ol

ethanol

methanol

glycerol

D-mannitol

aldehydo-D-galacturonate

α-Kdo-(2→6)-lipid IV_A

maltotriose

maltotetraose

maltopentaose

maltoheptaose

maltohexaose

keto-D-fructose

N-acetyl-α-D-muramoyl-L-alanine(1-)

N-acetylmuramate

N-acetyl-α-D-glucosamine 1-phosphate

D-xylulose

β-D-fructofuranose

decaprenyl-diphospho-N-acetylmuramoyl-pentapeptide

decaprenyl-pyrophosphoryl-(N-acetylglucosamine)-N-acetylmuramyl-(pentapeptide)

a peptidoglycan dimer (mycobacteria)

a peptidoglycan dimer (S. aureus)

a peptidoglycan dimer (E. faeciums)

a peptidoglycan dimer (E. faecium, tetrapeptide)

undecaprenyl-diphospho-N-acetylmuramoyl-L-alanyl-γ-D-glutamyl-L-lysyl- D-alanine

a peptidoglycan dimer with pentapeptide stems (meso-diaminopimelate containing)

a peptidoglycan dimer with pentapeptide stem (meso-diaminopimelate containing)

ditrans,octacis-undecaprenyldiphospho-N-acetyl-(N-acetylglucosaminyl)muramoyl-L-alanyl-γ-D-isoglutaminyl-L-lysyl-(glycyl)₅-D-alanyl-D-alanine

ditrans,octacis-undecaprenyldiphospho-[(N-acetyl-β-D-glucosaminyl)-(1,4)-]-N-acetyl-α-D-muramoyl-L-alanyl-γ-D-glutamyl-meso-2,6-diaminopimeloyl-D-alanyl-D-alanine

ditrans,octacis-undecaprenyldiphospho-N-acetyl-(N-acetylglucosaminyl)muramoyl-L-alanyl-γ-D-isoglutaminyl-N-(β-D-asparaginyl)-L-lysyl-D-alanyl-D-alanine

ditrans,octacis-undecaprenyldiphospho-N-acetyl-(N-acetylglucosaminyl)muramoyl-L-alanyl-γ-D-isoglutaminyl-N-(β-D-asparaginyl)-L-lysyl-D-alanine

GlcNAc-1,6-anhMurNAc-L-Ala-γ-D-Glu-DAP-D-Ala

undecaprenyl-diphospho-N-acetylmuramoyl-L-alanyl-γ-D-glutamyl-L-lysyl- D-alanyl-D-alanine

undecaprenyldiphospho-N-acetylmuramoyl-L-alanyl-γ-D-glutamyl-meso-2,6-diaminopimeloyl-D-alanyl-D-alanine

α-D-glucopyranose 1-phosphate

D-glyceraldehyde 3-phosphate

1-(o-carboxyphenylamino)-1'-deoxyribulose 5'-phosphate

D-erythrose 4-phosphate

D-sedoheptulose 7-phosphate

5-phospho-α-D-ribose 1-diphosphate

D-tagatofuranose 1,6-bisphosphate

β-D-fructose 1,6-bisphosphate

D-fructose 6-phosphate

β-D-fructofuranose 6-phosphate

D-xylulose 5-phosphate

D-arabinofuranose 5-phosphate

1-deoxy-D-xylulose 5-phosphate

D-ribulose 5-phosphate

α-D-ribose-1-phosphate

2-deoxy-α-D-ribose 1-phosphate

β-D-glucopyranose 1-phosphate

β-D-fructofuranose 1-phosphate

α-D-mannose 1-phosphate

D-altronate

D-gluconate

1-oleoyl-sn-glycerol 3-phosphate

1-(18-hydroxyoleoyl)-sn-glycrol 3-phosphate

1-myristoyl-sn-glycerol 3-phosphate

1-palmitoyl-sn-glycerol 3-phosphate

1-cis-vaccenoyl-sn-glycerol-3-phosphate

1-[18-hydroxyoeoyl]-2-[18-hydroxy-lioleoyl]-sn-glycerol 3-phosphate

1,2-dimyristoyl-sn-glycerol 3-phosphate

1-palmitoyl-2-myristoyl phosphatidate

dioleoyl phosphatidate

1,2-dicis-vaccenoyl-phosphatidate

1-cis-vaccenoyl-2-palmitoleoyl-sn-glycerol-3-phosphate

1-palmitoyl-2-cis-vaccenoyl phosphatidate

1-palmitoyl-2-palmitoleoyl-sn-glycerol 3-phosphate

1-myristoyl-2-palmitoleoyl-sn-glycerol 3-phosphate

geranyl diphosphate

mono-trans,octa-cis-decaprenyl diphosphate

trans,octacis-decaprenyl phosphate

di-trans,octa-cis-undecaprenyl phosphate

geranylgeranyl diphosphate

all-trans-heptaprenyl diphosphate

di-trans,octa-cis-undecaprenyl diphosphate

phlorisovalerophenone

deoxyhumulone

deoxycohumulone

4-prenylphlorisovalerophenone

1-(5-phospho-β-D-ribosyl)-5-[(5-phosphoribosylamino)methylideneamino]imidazole-4-carboxamide

phosphoribulosylformimino-AICAR-phosphate

5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide

5-amino-4-imidazolecarboxyamide

5-formamido-1-(5-phospho-D-ribosyl)-imidazole-4-carboxamide

(3E)-2-oxohex-3-enedioate

chorismate

succinate

fumarate

L-aspartate

(S)-malate

D-glucarate

D-galactarate

3-(carbamoylamino)-2-methylpropanoate

3-oxoadipate

3-phenyl-2-oxopropanoate

glyoxylate

2-oxobutanoate

2-oxoglutarate

pyruvate

propanoate

butanoate

laurate

(R)-lactate

palmitate

(R)-pantoate

acetate

D-tagaturonate

carbamate

L-serine

L-cysteine

L-tyrosine

L-asparagine

L-threonine

L-glutamine

glycine

L-lysine

L-histidine

L-arginine

L-glutamate

L-methionine

L-valine

L-leucine

L-isoleucine

L-tryptophan

L-proline

L-alanine

β-alanine

(R)-3-amino-2-methylpropanoate

D-glutamate

D-aspartate

D-alanine

L,L-diaminopimelate

L-aspartyl-4-phosphate

L-ornithine

N-carbamoyl-L-aspartate

N-acetyl-L-ornithine

L-2-amino-3-oxobutanoate

L-threonine 3-O-phosphate

3-phospho-L-serine

(2S, 3S)-3-methylaspartate

N-carbamoylglycine

N-acetyl-L-glutamate

trans-4-hydroxy-L-proline

O-acetyl-L-homoserine

L-citrulline

hypoglycin A

L-canaline

L-glutamate-5-semialdehyde

O-phospho-L-homoserine

L-homoserine

L-aspartate 4-semialdehyde

S-adenosyl-L-homocysteine

S-adenosyl-L-methionine

meso-diaminopimelate

hypoglycin B

L-alanyl-γ-D-glutamyl-meso-2,6-diaminopimeloyl-D-alanine

L-cysteinylglycine

D-alanyl-D-alanine

L-alanyl-γ-D-glutamyl-meso-2,6-diaminopimeloyl-D-alanyl-D-alanine