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

L-dehydro-ascorbate

L-xylo-hex-3-ulono-1,4-lactone

L-gulono-1,4-lactone

α-D-galacturonate 1-phosphate

N⁵-carboxyaminoimidazole ribonucleotide

propanoyl phosphate

anthranilate

N-(5-phosphoribosyl)-anthranilate

S-ribosyl-L-homocysteine

autoinducer 2

1,6-anhydro-N-acetyl-β-muramate

N-acetyl-D-muramate 6-phosphate

1-(methylsulfanyl)xylulose 5-phosphate

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

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

4-amino-2-methyl-5-pyrimidinemethanol

quinolinate

dialurate

formamide

3,5-dihydro-4H-imidazol-4-one

4-aminoimidazole

5-aminoimidazole-4-carboxylate

5-ureidoimidazole-4-carboxylate

ammonia

4-imidazolone-5-propanoate

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

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

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

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

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

5-deoxy-α-ribose 1-phosphate

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

5-(methylsulfanyl)-ribulose 1-phosphate

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

α-ribazole

thiamine phosphate

thiamine diphosphate

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

(R)-4'-phosphopantothenoyl-L-cysteine

4'-phosphopantetheine

prenyl diphosphate

isopentenyl diphosphate

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

nicotinate adenine dinucleotide

γ-L-glutamyl 5-phosphate

prephenate

D-glycero-β-D-manno-heptose 1,7-bisphosphate

D-glycero-β-D-manno-heptose 1-phosphate

ADP-D-glycero-β-D-manno-heptose

ADP-L-glycero-β-D-manno-heptose

N-acetyl-L-glutamate 5-semialdehyde

N-acetylglutamyl-phosphate

selenophosphate

O-ureido-L-homoserine

L-arginino-succinate

canavaninosuccinate

L-canavanine

α-D-glucosamine 1-phosphate

isochorismate

2-succinyl-5-enolpyruvoyl-6-hydroxy-3-cyclohexene-1-carboxylate

(1R,6R)-6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate

1,4-dihydroxy-2-naphthoyl-CoA

2-succinylbenzoate

4-(2'-carboxyphenyl)-4-oxobutyryl-CoA

carbon monoxide

pimelate

pimeloyl-CoA

orotidine 5'-phosphate

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

porphobilinogen

preuroporphyrinogen

(S)-4-amino-5-oxopentanoate

5-aminolevulinate

5,6-dimethylbenzimidazole

β-nicotinate D-ribonucleotide

α-ribazole 5'-phosphate

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

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

4-(β-D-ribofuranosyl)aminobenzene-5'-phosphate

(R)-4'-phosphopantothenate

dihydroxyacetone

lipid X

lipid A disaccharide (E. coli)

lipid IV_A

3-deoxy-α-D-manno-2-octulosonate

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

urocanate

(L-threonylcarbamoyl)adenylate

DNA without lesion

4-pyridoxolactone

hydrogenobyrinate

hydrogenobyrinate a,c-diamide

glycerone phosphate

α-D-galactosyl-diphosphoundecaprenol

(S)-dihydroorotate

carbamoyl phosphate

H₂

coproporphyrinogen III

acetyl phosphate

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

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

4-methyl-2-oxopentanoate

3-ethylmalate

2-oxovalerate

2-dehydropantoate

histidinal

histidinol

D-erythro-imidazole-glycerol-phosphate

imidazole acetol-phosphate

L-histidinol phosphate

hydrogen selenide

O-acetyl-L-serine

shikimate

3-dehydroshikimate

shikimate 3-phosphate

5-enolpyruvoyl-shikimate 3-phosphate

3-dehydroquinate

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

(S)-3-methyl-2-oxopentanoate

3-methyl-2-oxobutanoate

(S)-2-acetolactate

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

(S)-2-aceto-2-hydroxybutanoate

4-amino-4-deoxychorismate

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

dethiobiotin

(S)-2-amino-6-oxohexanoate

8-amino-7-oxononanoate

S-adenosyl-4-methylsulfanyl-2-oxobutanoate

7,8-diaminopelargonate

3-ureidopropanoate

hydroxylamine

hydrogen peroxide

(2S)-2-isopropylmalate

(2R,3S)-3-isopropylmalate

2-isopropylmaleate

1,4-dihydroxy-2-naphthoate

xanthine

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

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

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

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

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

5-phospho-β-D-ribosylamine

N¹-(5-phospho-β-D-ribosyl)glycinamide

CO₂

4-aminobutanoate

(R)-pantothenate

H₂O

6-phospho D-glucono-1,5-lactone

D-gluconate 6-phosphate

phosphoenolpyruvate

oxaloacetate

citrate

S-adenosyl 3-(methylsulfanyl)propylamine

S-methyl-5'-thioadenosine

2-carboxy-L-threo-pentonate

2-carboxy-L-xylonolactone

(2R,4S)-2-methyl-2,3,3,4-tetrahydroxytetrahydrofuran

(2S,4S)-2-methyl-2,3,3,4-tetrahydroxytetrahydrofuran

2,3-dioxo-L-gulonate

cyclic- 3,4-O-oxalyl-L-threonate

(2R,4S)-2-methyl-2,4-dihydroxydihydrofuran-3-one

(2S,4S)-2-methyl-2,4-dihydroxydihydrofuran-3-one

dehydroascorbate (bicyclic form)

cyclic-2,3-O-oxalyl-L-threonate

pyruvic oxime

4-oxoglutaramate

1-piperideine 6-carboxylate

urea

(2E,6E)-farnesyl diphosphate

preQ₀

coenzyme A

guanylyl molybdenum cofactor

MoO₂-molybdopterin cofactor

tetrahydropteroyl tri-L-glutamate

5,6,7,8-tetrahydrofolate

5-methyltetrahydropteroyl tri-L-glutamate

5-methyltetrahydropteroyl mono-L-glutamate

10-formyl-tetrahydrofolate mono-L-glutamate

5,10-methylenetetrahydropteroyl mono-L-glutamate

(6S)-5-formyl-tetrahydrofolate mono-L-glutamate

7,8-dihydrofolate monoglutamate

FAD

FMNH₂

FMN

(S)-NADHX

(R)-NADHX

demethylmenaquinol-8

ubiquinol-8

menaquinol-8

3-demethylubiquinol-8

NAD⁺

NADP⁺

NADH

NADPH

glycine betaine

L-ascorbate

thiamine

riboflavin

nicotinate

pyridoxal

trimethyl sulfonium

selenide

thiosulfate

nitrite

nitrate

hydrogencarbonate

molybdate

superoxide

phosphate

triphosphate

diphosphate

Fe²⁺

Co²⁺

ammonium

H⁺

dimethyl sulfide

5-(2-hydroxyethyl)-4-methylthiazole

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

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

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

methanethiol

2-iminopropanoate

2-aminoprop-2-enoate

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

putrescine

spermidine

propan-1-ol

ethanol

ethylene glycol

(S)-propane-1,2-diol

(R)-propane-1,2-diol

5-chloro-5-deoxy-D-ribonate

5-chloro-4-hydroxy-2-oxopentanoate

phosphoribulosylformimino-AICAR-phosphate

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

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

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

L-α-amino-ε-keto-pimelate

L-cysteine

L-tyrosine

L-asparagine

L-serine

L-threonine

L-glutamine

glycine

L-aspartate

L-glutamate

L-histidine

L-arginine

L-lysine

L-tryptophan

D-methionine

D-aspartate

D-alanine

D-glutamate

L-aspartyl-4-phosphate

L-threonine 3-O-phosphate

N-formimino-glycine

N-carbamoyl-L-aspartate

N-carbamoylglycine

formyl-L-isoglutamine

N-formimino-L-glutamate

N-acetyl-L-ornithine

N-acetyl-L-glutamate

O-acetyl-L-homoserine

L-leucine

L-isoleucine

L-proline

L-methionine

L-valine

L-selenocysteine

L-alanine

L-ornithine

L-cystathionine

L,L-diaminopimelate

L-isoglutamine

L-citrulline

L-aspartate 4-semialdehyde

L-glutamate-5-semialdehyde

L-canaline

L-homoserine

O-succinyl-L-homoserine

O-phospho-L-homoserine

S-sulfo-L-cysteine

L-homocysteine

S-adenosyl-L-homocysteine

S-adenosyl-L-methionine

meso-diaminopimelate

β-alanine

(R)-3-amino-2-methylpropanoate

4-aminobenzoate

butanoate

acetate

D-gluconate

orotate

(R)-pantoate

aldehydo-D-glucuronate

aldehydo-D-galacturonate

(S)-1-pyrroline-5-carboxylate

chorismate

(4S)-4-hydroxy-2-oxoglutarate

succinate

fumarate

(S)-malate

3-(carbamoylamino)-2-methylpropanoate

(R)-lactate

(S)-lactate

pyruvate

formate

propanoate

glyoxylate

2-oxoglutarate

2-oxobutanoate

diacetyl

glycolaldehyde

α-D-galactopyranose

β-D-glucopyranose

aldehydo-D-ribose

α-D-ribofuranose

β-D-ribofuranose

acetaldehyde

1-propanal

(S)-lactaldehyde

(R)-lactaldehyde

a thiol group

decaprenyl-diphospho-N-acetylmuramoyl-pentapeptide

CMP-3-deoxy-β-D-manno-octulosonate

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

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

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

dTDP-α-D-glucose

UDP-α-D-galacturonate

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-muramoyl-L-alanine

UDP-N-acetyl-α-D-muramoyl-L-alanyl-γ-D-glutamyl-L-lysine

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

UDP-α-D-galactofuranose

UDP-α-D-galactose

UDP-α-D-glucose

UDP-α-D-glucuronate

UDP-N-acetyl-α-D-muramate

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

UDP-N-acetyl-α-D-glucosamine

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-meso-2,6-diaminopimelate

UDP-N-acetyl-α-D-mannosaminuronate

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

sucrose 6^F-phosphate

a peptidoglycan dimer (E. faecium, tetrapeptide)

a peptidoglycan dimer (mycobacteria)

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

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

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

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

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

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

ditrans,octacis-undecaprenyldiphospho-N-acetyl-(N-acetyl-β-D-glucosaminyl)muramoyl-L-alanyl-γ-D-glutamyl-L-lysyl-D-alanyl-D-alanine

a peptidoglycan with D,D cross-links (meso-diaminopimelate containing)

a peptidoglycan dimer (meso-diaminopimelate containing)

a peptidoglycan with D,D cross-links (mycobacteria)

a peptidoglycan with L,D cross-links (mycobacteria)

a peptidoglycan tetramer with an L,D cross-link (Enterococcus faecium)

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

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

α-D-glucopyranose 1-phosphate

D-glyceraldehyde 3-phosphate

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

D-erythrose 4-phosphate

5-phospho-α-D-ribose 1-diphosphate

β-D-fructose 1,6-bisphosphate

1-deoxy-D-xylulose 5-phosphate

D-xylulose 5-phosphate

aldehydo-D-arabinose 5-phosphate

D-ribulose 5-phosphate

β-D-fructofuranose 6-phosphate

D-fructose 6-phosphate

α-D-glucose 6-phosphate

β-D-glucose 6-phosphate

α-D-galactose 1-phosphate

β-D-fructofuranose 1-phosphate

β-D-glucopyranose 1-phosphate

N-acetyl-α-D-glucosamine 1-phosphate

α-D-ribose-1-phosphate

2-deoxy-α-D-ribose 1-phosphate

β-D-fructofuranose

N-acetyl-α-D-muramoyl-L-alanine(1-)

N-acetylmuramate

N-acetyl-α-D-mannosamine

N-acetyl-β-D-glucosamine

sucrose

α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid A

heptosyl-Kdo₂-lipid A

α-Kdo-(2->4)-α-Kdo-(2->6)-lipid IV_A

heptosyl-Kdo₂-lipid IV_A

L-gulonate

aldehydo-L-galactonate

(11Z,14Z,17Z)-3-oxoicosatrienoyl-CoA

(3R,11Z,14Z,17Z)-3-hydroxyicosatrienoyl-CoA

2-methylacetoacetyl-CoA

(E)-glutaconyl-CoA

succinyl-CoA

3'-dephospho-CoA

acetyl-CoA

2-methylbutanoyl-CoA

(E)-2-methylcrotonoyl-CoA

(2S,3S)-3-hydroxy-2-methylbutanoyl-CoA

crotonyl-CoA

oleoyl-CoA

acetoacetyl-CoA

3-oxopentanoyl-CoA

(3R)-3-hydroxybutanoyl-CoA

(S)-3-hydroxybutanoyl-CoA

butanoyl-CoA

propanoyl-CoA

(S)-methylmalonyl-CoA

(R)-methylmalonyl-CoA

L-galactono-1,4-lactone

mono-trans,octa-cis-decaprenyl diphosphate

trans,octacis-decaprenyl phosphate

dioleoyl phosphatidate

1-oleoyl-2-lyso-glycerone phosphate

1-oleoyl-sn-glycerol 3-phosphate

di-trans,octa-cis-undecaprenyl diphosphate

all-trans-octaprenyl diphosphate

di-trans,octa-cis-undecaprenyl phosphate

8-hydroxypurine

6,8-dihydroxypurine

urate

4-vinylguaiacol

ferulate

indole

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

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

7,8-dihydroneopterin 3'-phosphate

7,8-dihydroneopterin 3'-triphosphate

7,8-dihydropterin-6-ylmethyl-4-(β-D-ribofuranosyl)aminobenzene 5'-phosphate

7,8-dihydroneopterin

7,8-dihydromonapterin

6-(hydroxymethyl)-7,8-dihydropterin

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

7,8-dihydropteroate

adenine

guanine

2'-deoxyadenosine

2'-deoxyguanosine

guanosine

xanthosine

adenosine

purine

hypoxanthine

dIMP

dAMP

dGMP

dITP

dGTP

dATP

dGDP

dADP

XTP

ITP

GTP

ATP

GDP

ADP

AMP

XMP

GMP

IMP

cytidine 2',3'-cyclic monophosphate

uridine 2'3'-cyclic monophosphate

dCTP

dTDP

dTTP

dCMP

uracil

uridine 3'-monophosphate

cytidine-3'-monophosphate

dUDP

UDP

dCDP

CDP

UTP

CTP

dUTP

5,6-dihydrothymine

5,6-dihydrouracil

dUMP

dTMP

cytidine

uridine

thymidine

2'-deoxycytidine

2'-deoxyuridine

thymine

CMP

UMP

preQ₁

adenosylcobalamin

cob(I)alamin

sirohydrochlorin

cobyrinate

cobalt-precorrin-3

cobalt-precorrin-7

cobalt-precorrin-8

cobalt-precorrin-6B

cobalt-precorrin-5B

cobalt-precorrin-6A

cobalt-precorrin-4

cobalt-precorrin-5A

precorrin-1

precorrin-2

precorrin-3A

precorrin-6A

precorrin-3B

precorrin-4

precorrin-5

precorrin-7

precorrin-8x

precorrin-6B

hydantoin

guanosine 2',3'-cyclic monophosphate

adenosine 2',3'-cyclic monophosphate

adenosine 3'-monophosphate

guanosine 3'-monophosphate

5'-deoxyadenosine

1-(5-phospho-β-D-ribosyl)-ATP

1-(5-phospho-β-D-ribosyl)-AMP

adenylo-succinate

2-sulfanyl-N⁶-dimethylallyladenosine³⁷ in tRNA

2-methylsulfanyl-N⁶-dimethylallyladenosine³⁷ in tRNA

2-iminosuccinate

2-iminobutanoate

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

L-alanyl-γ-D-glutamyl-meso-diaminopimelate

D-alanyl-D-alanine

DNA with lesion

cobalt-factor III

cobalt-sirohydrochlorin

adenosyl-cobinamide phosphate

adenosylcobyrate

adenosylcobinamide-GDP

adenosylcobalamin 5'-phosphate

cob(II)yrinate c-monoamide

cob(II)yrinate a,c-diamide

cob(I)yrinate a,c-diamide

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

cob(I)inamide

adenosylcobinamide

protoheme

N₂

uroporphyrinogen-I

coproporphyrinogen I

uroporphyrinogen-III

protoporphyrin IX

protoporphyrinogen IX

siroheme

hydrogen sulfide

oxygen

sn-glycerol 3-phosphate

3-phospho-D-glyceroyl-phosphate

2-phospho-D-glycerate

3-phospho-D-glycerate

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

monodehydroascorbate radical

5,10-methenyltetrahydrofolate mono-L-glutamate