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1.17.4.1: ribonucleoside-diphosphate reductase

This is an abbreviated version!
For detailed information about ribonucleoside-diphosphate reductase, go to the full flat file.

Word Map on EC 1.17.4.1

Reaction

2'-deoxyribonucleoside 5'-diphosphate
+
thioredoxin disulfide
+
H2O
=
ribonucleoside 5'-diphosphate
+
thioredoxin

Synonyms

2'-deoxyribonucleoside-diphosphate:oxidized-thioredoxin 2'-oxidoreductase, ADP reductase, CDP reductase, class I ribonucleotide reductase, class I ribonulceotide reductase, class I RNR, class I RR, class Ia ribonucleotide reductase, class Ia RNR, class Ia RR, class Ib ribonucleotide reductase, class Ib RNR, class Ic ribonucleotide reductase, class II RNR, manganese-ribonucleotide reductase, Mn-RNR, More, mRR, NrdA, NrdB, NrdE, NrdF, nucleoside diphosphate reductase, p53-inducible ribonucleotide reductase, R2F, reductase, ribonucleoside diphosphate, ribonucleoside 5'-diphosphate reductase, ribonucleoside diphosphate reductase, ribonucleoside-diphosphate reductase subunit M2 B, ribonucleotide diphosphate reductase, ribonucleotide reductase, RIR1, RIR2, RNR, RNR1 rRibonucleoside-diphosphate reductase large chain 1, RNR2, UDP reductase

ECTree

     1 Oxidoreductases
         1.17 Acting on CH or CH2 groups
             1.17.4 With a disulfide as acceptor
                1.17.4.1 ribonucleoside-diphosphate reductase

Inhibitors

Inhibitors on EC 1.17.4.1 - ribonucleoside-diphosphate reductase

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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
(-)-epicatechin
(2E)-2-(anthracen-9-ylmethylidene)-N-hydroxyhydrazinecarboximidamide
-
i.e. ABNM-13, application leads to significant alterations of deoxyribonucleoside triphosphate pool balance and a highly significant decrease of incorporation of radiolabeled cytidine into DNA of HL-60 cells. Diminished ribonucleotide reductase activity causes replication stress which is consistent with activation of Chk1 and Chk2, resulting in downregulation/degradation of Cdc25A. Cdc25B is upregulated, leading to dephosphorylation and activation of Cdk1. The combined disregulation of Cdc25A and Cdc25B is the most likely cause for ABNM-13 induced S-phase arrest
(E)-2'-fluoromethylene-2'-deoxycytidine-5-diphosphate
-
i.e. N3dNDP, inhibitor forming a furanone intermediate. Modeling of enzyme-inhibitor complex
1,10-phenanthroline
1-Formylisoquinoline thiosemicarbazone
-
0.0006 mM, 81% inhibition, 0.1 mM desferal reverses inhibition
1-methyl-1-hydroxyurea
-
10 mM, 55% inhibition
2',3'-dideoxy-ATP
-
less potent inhibitor than dATP, 0.1 mM, 50% inhibition of CDP reduction
2'-azido-2'-deoxynucleotides
-
-
2'-chloro-2'-deoxycytidine 5'-diphosphate
-
-
2'-deoxy-2'-azidocytidine diphosphate
2'-halo-2'-deoxynucleotides
-
-
2'-methyladenosine 5'-diphosphate
-
probably mechanism based inhibition, competitive inhibition vs. ADP and GDP
2'-methyluridine 5'-diphosphate
-
probably mechanism based inhibition, competitive inhibition vs. UDP and CDP
2,3,4-Trihydroxybenzamide
-
-
2,3,4-trihydroxybenzohydroxamic acid
2,3-Dihydro-1H-pyrazolo[2,3-a]imidazole
2,3-dihydroxybenzohydroxamic acid
-
0.008 mM, 50% inhibition
2,4-dichlorobenzohydroxamic acid
-
0.45 mM, 50% inhibition
2,4-dihydroxybenzohydroxamic acid
-
0.3 mM, 50% inhibition
2,5-dihydroxybenzohydroxamic acid
-
0.2 mM, 50% inhibition
2,6-dihydroxybenzohydroxamic acid
-
0.1 mM, 50% inhibition
2-(diphenylmethylidene)-N,N-dimethylhydrazinecarbothioamide
-
metal chelator, significantly decreases ribonucleotide reductase activity, whereas the NADPH/NADP+ total ratio is not reduced
2-acetylpyridine N,N-dimethylthiosemicarbazonato-N,N,S-dichlorogallium(III)
-
-
2-acetylpyridine N-pyrrolidinylthiosemicarbazonato-N,N,S-dichlorogallium(III)
-
-
2-aminobenzohydroxamic acid
-
0.12 mM, 50% inhibition
2-azido-UDP
-
rapid time dependent inactivation
2-furan-3-ylbenzaldehyde N-(4-hydroxyphenyl)thiosemicarbazone
-
-
2-furan-3-ylbenzaldehyde N-phenylthiosemicarbazone
-
-
2-hydroxy-3-methylbenzohydroxamic acid
-
0.15 mM, 50% inhibition
2-hydroxy-4-aminobenzohydroxamic acid
-
0.2 mM, 50% inhibition
2-hydroxybenzaldehyde N-(4-chlorophenyl)thiosemicarbazone
-
-
2-hydroxybenzaldehyde N-phenylthiosemicarbazone
-
-
2-hydroxybenzohydroxamic acid
-
0.15 mM, 50% inhibition
2-Nitro-imidazole
-
trivial name azomycin
2-thiophen-2-ylbenzaldehyde N-(4-chlorophenyl)thiosemicarbazone
-
-
2-thiophen-2-ylbenzaldehyde N-phenylthiosemicarbazone
-
-
2-[di(pyridin-2-yl)methylidene]-N,N-dimethylhydrazinecarbothioamide
-
metal chelator, significantly decreases ribonucleotide reductase activity, whereas the NADPH/NADP+ total ratio is not reduced
3,4,5-Trihydroxybenzamide
-
-
3,4,5-Trihydroxybenzohydroxamic acid
3,4,5-Trihydroxybenzoic acid
-
-
3,4,5-trimethoxybenzohydroxamic acid
-
0.1 mM, 50% inhibition
3,4-diaminobenzohydroxamic acid
-
0.04 mM, 50% inhibition
3,4-dichlorobenzohydroxamic acid
-
0.3 mM, 50% inhibition
3,4-Dihydroxybenzamide
-
-
3,4-dihydroxybenzohydroxamic acid
3,4-dimethoxybenzohydroxamic acid
-
0.3 mM, 50% inhibition
3,4-dimethylbenzohydroxamic acid
-
0.3 mM, 50% inhibition
3,5-diamino-1H-1,2,4-triazole
3,5-diaminopyridine-2-carboxaldehyde thiosemicarbazone
-
-
3,5-dihydroxybenzohydroxamic acid
-
0.4 mM, 50% inhibition
3-amino-4-methylpyridine-2-carboxaldehyde thiosemicarbazone
-
-
3-aminobenzohydroxamic acid
-
0.35 mM, 50% inhibition
3-aminopyridine-2-carboxaldehyde thiosemicarbazone
3-aminopyridine-2-carboxaldehyde-thiosemicarbazone
-
i.e. 3-AP, phase I study in combination with high dose cytarabine in patients with advanced myeloid leukemia, resulting in enhanced cytarabine cytotoxicity with possible methemoglobinemia, overview
3-hydroxybenzohydroxamic acid
-
0.35 mM, 50% inhibition
3-methyl aminopyridine-2-carboxaldehyde thiosemicarbazone
-
-
3-methyl-1-hydroxyurea
-
10 mM, 57% inhibition
3-Methyl-4-nitrophenol
-
-
4-Amino-2-phenylimidazole-5-carboxamide
-
-
4-aminobenzohydroxamic acid
-
0.15 mM, 50% inhibition
4-dimethylaminobenzohydroxamic acid
-
0.5 mM, 50% inhibition
4-hydroxy-3-methoxybenzaldehyde N-(4-chlorophenyl)thiosemicarbazone
-
-
4-hydroxy-3-methoxybenzaldehyde N-phenylthiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(2-chlorophenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(2-hydroxyphenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(2-methoxyphenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(2-methylphenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(2-nitrophenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(3-chlorophenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(3-hydroxyphenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(3-methylphenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(4-chlorophenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(4-hydroxyphenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(4-methylphenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-(4-nitrophenyl)thiosemicarbazone
-
-
4-hydroxybenzaldehyde N-phenylthiosemicarbazone
-
-
4-hydroxybenzohydroxamic acid
-
0.30 mM, 50% inhibition
4-methoxybenzohydroxamic acid
-
0.5 mM, 50% inhibition
4-methoxyphenol
-
-
4-Methyl-5-amino isoquinoline-1-carboxaldehyde thiosemicarbazone
4-Methyl-5-amino-1-formylisoquinoline thiosemicarbazone
4-methylaminobenzohydroxamic acid
-
0.33 mM, 50% inhibition
4-nitrobenzohydroxamic acid
-
0.5 mM, 50% inhibition
5'-O-valproyl-3'-C-methyladenosine
inhibits ribonucleotide reductase activity by competing with ATP as an allosteric effector and concomitantlyreduces the intracellular deoxyribonucleoside triphosphate pools. In contrast to previously used ribonucleotide reductase nucleoside analogs does not require intracellular kinases for its activity and therefore holds promise against drug resistant tumors with downregulated nucleoside kinases
-
5-(1-Aziridinyl)-2,4-dinitrobenzamide
5-amino-4-morpholinomethylpyridine-2-carboxaldehyde thiosemicarbazone
-
-
5-aminopyridine-2-carboxaldehyde thiosemicarbazone
-
-
5-hydroxy-4-methyl-1-formylisoquinoline thiosemicarbazone
-
-
5-methyl-4-amino-1-formylisoquinoline thiosemicarbazone
-
-
6-chloro-9H-(3-C-methyl-2,3-di-O-acetyl-5-O-benzoyl-beta-D-ribofuranosyl)purine
-
-
8-hydroxyquinoline
8-hydroxyquinoline 5-sulfonate
Acetohydroxamic acid
aurintricarboxylate
bathophenanthroline disulfonate
bathophenanthroline sulfonate
benzohydroxamic acid
-
0.4 mM, 50% inhibition
butylphenyl-dGTP
-
0.13 mM, 50% inhibition of ADP reduction
caracemide
Catechol derivatives
-
-
-
chlorambucil
Cibacron blue F3 GA
-
-
cisplatin
clofarabine
-
an adenosine analogue is used in the treatment of refractory leukemias. Its mode of cytotoxicity is associated in part with the triphosphate functioning as an allosteric reversible inhibitor of hRNR, rapid inactivation
clofarabine diphosphate
-
ClFDP, a C-site slow-binding, reversible inhibitor, mechanism of inhibition via altering the quaternary structure of the large subunit of RNR, overview. Binds also mutant D57N-alpha subunit. CDP protects against inhibition
clofarabine triphosphate
-
ClFTP, an A-site rapidly binding reversible inhibitor, mechanism of inhibition via altering the quaternary structure of the large subunit of RNR, overview. Neither CDP (C site) nor dGTP (A site) had any effect on inhibition by ClFTP
dADP
-
product inhibition
dCDP
-
product inhibition
deferoxamine mesylate
desferrioxamine
-
-
dGDP
-
product inhibition
dithiothreitol
-
higher than 10 mM, activation below
dITP
-
inhibition of CDP reduction
dUDP
-
product inhibition
dUTP
-
inhibition of: CDP reduction, UDP reduction
ethyleneglycol-bis-(2-aminoethylether)-N,N,N',N'-tetraacetic acid
-
trivial name EGTA
Fmoc(NCH3)PhgLDChaDF
-
inhibitor identified by competition with inhibitor N-AcFTLDADF and inhibition of enzyme activity
FmocWFDF
-
inhibitor identified by competition with inhibitor N-AcFTLDADF and inhibition of enzyme activity
FmocWVFF
-
inhibitor identified by competition with inhibitor N-AcFTLDADF and inhibition of enzyme activity
formohydroxamic acid
-
10 mM, 43% inhibition
FTLDADF
-
last seven amino acid residues of carboxyl terminus of the R2 subunit of mouse enzyme and its N-alpha-acetyl derivative inhibit thymus enzyme
gamma-L-Glutaminyl-4-hydroxybenzene
-
naturally occuring quinol from spores of Agaricus bisporus, 0.76 mM, 50% inhibition
gemcitabine
glutaminyl-3,4-dihydroxybenzene
-
1.23 mM, 50% inhibition
glutathione
-
analogs with aromatic substituents
H2O2
-
0.01%, 81% inhibition
hydroxylamine
-
10 mM, complete inhibition
Hydroxyurea
IRBIT
IRBIT is a conserved metazoan protein implicated in diverse functions. IRBIT consists of a putative enzymatic domain that has similarity to S-adenosylhomocysteine hydrolase and an essential N-terminal domain of 104 amino acids. It forms a dATP–dependent complex with ribonucleotide reductase, which stabilizes dATP in the activity site of ribonucleotide reductase and thus inhibits the enzyme. Formation of the ribonucleotide reductase-IRBIT complex is regulated through phosphorylation of IRBIT, and ablation of IRBIT expression in HeLa cells causes imbalanced dNTP pools and altered cell cycle progression. Under normal physiological conditions, where ATP levels are high, such inhibition can only be achieved when binding of IRBIT is strengthened by phosphorylation
-
Isoquinoline-1-carboxaldehyde thiosemicarbazone
L-ADP
-
inhibition of D-ADP reduction, competitive inhibition of dGTP-dependent D-ADP reductase
mammalian R2 C-terminal heptapeptide P7
Ac-1FTLDADF7, the inhibitor binds at bind at a contiguous site containing residues that are highly conserved among eukaryotes, binding structure, overview
meso-alpha,beta-Diphenylsuccinate
-
-
Methyl 3,4,5-trihydroxybenzoate
-
-
monoclonal antibody raised against yeast tubulin
-
CDP reductase activity is inhibited to a greater extent than ADP, UDP or GDP reductase activity, antibody recognizes a specific sequence in the C-terminal region on the R2 subunit
-
N,2,3,4-tetrahydroxybenzamide
-
0.012 mM, 50% inhibition, reversible
N-AcFTLDADF
-
heptapeptide inhibitor based on subunit R2 C-terminus
N-alpha-acetyl-FTLDADF
-
-
N-ethylmaleimide
-
0.1 mM, 50% inhibition of intact enzyme, 0.05 mM, 50% inhibition of effector-binding subunit, 0.3 mM, 50% inhibition of non-heme iron subunit
n-Hexanohydroxamic acid
-
-
N-Hydroxy-alpha-aminoheptanoate
-
5 mM, 50% inhibition
N-Hydroxy-alpha-aminohexanoate
-
15 mM, 50% inhibition
N-hydroxyguanidine
-
10 mM, 89% inhibition
N-hydroxyurethane
-
10 mM, 66% inhibition
N-Methyl 3,4,5-trihydroxybenzamide
-
-
N-Methylhydroxylamine
N-[[(3S,5S,7S,7aS)-7-([[3-(9H-fluoren-9-yl)propanoyl]oxy]methyl)-3-hydroxy-5-(2-methylpropoxy)hexahydropyrano[3,4-b]pyrrol-1(2H)-yl]acetyl]-L-alpha-aspartyl-L-phenylalanine
-
50% inhibition at 0.04-0.05 mM, bicyclic scaffold is necessary to maintain inhibitory activity
N6-(2-furanylmethyl)-9H-(3-C-methyl-beta-D-ribofuranosyl)adenine
-
-
N6-(2-thienylmethyl)-9H-(3-C-methyl-beta-D-ribofuranosyl)adenine
-
-
N6-(3-pyrazolyl)-9H-(3-C-methyl-beta-D-ribofuranosyl)adenine
-
-
N6-cyclobutyl-9H-(3-C-methyl-beta-D-ribofuranosyl)adenine
-
-
N6-cycloheptyl-9H-(3-C-methyl-beta-D-ribofuranosyl)adenine
-
-
N6-endo-norbonyl-9H-(3-C-methyl-beta-D-ribofuranosyl)adenine
-
-
N6-phenyl-9H-(3-C-methyl-beta-D-ribofuranosyl)adenine
-
-
nicotinohydroxamic acid
-
0.8 mM, 50% inhibition
NSFTLDADF
-
inhibition of CDP reductase activity, peptide corresponds to the C-terminal region of the R2 subunit and competes with binding of R2 to the R1 subunit
nucleotide analogs
-
overview
-
o-ClBzocFc[ELDK]DF
-
inhibitor identified by competition with inhibitor N-AcFTLDADF and inhibition of enzyme activity
p-chloromercuribenzoate
-
0.35 mM, 50% inhibition of intact enzyme, 0.15 mM, 50% inhibition of effector-binding subunit, 1.5 mM, 50% inhibition of non-heme iron subunit
peptide P6
1Fmoc(Me)PhgLDChaDF7, the inhibitor binds at a contiguous site containing residues that are highly conserved among eukaryotes. The Fmoc group in P6 peptide forms several hydrophobic interactions that contribute to its enhanced potency in binding to ScR1, binding structure, overview
peptide Y-R2C19
-
a 20-mer peptide, which is identical to the C-terminal peptide tail of the R2 subunit and is a known competitive inhibitor of binding of the native R2 protein to R1
-
Periodate-oxidized inosine
-
phenylacetohydroxamic acid
-
1 mM, 50% inhibition
picolinohydroxamic acid
-
0.5 mM, 50% inhibition
Polyhydroxybenzohydroxamic acid
-
pyrazoloimidazol
Pyridine-2-carboxaldehyde thiosemicarbazone
pyridoxal 5'-phosphate
Herpes simplex virus
-
1 mM, 65% inhibition, 3 mM, 90% inhibition
pyridoxal 5'-phosphate/NaBH4
-
-
Pyrogallol derivatives
-
-
-
quercetin
-
i.e. 3,3',4',5,7-pentahydroxyflavone, isolated from air-dried powdered leaves of Vitex negundo, a lipophilic metal chelator, that interferes with the parasite's iron metabolism inhibiting Fe2+ acquisition from an endogenous source, combination of quercetin with serum albumin increases its bioavailability, the inhibitor causes deprivation of the enzyme of iron which in turn destabilized the critical tyrosyl radical required for its catalysing activity
Sml1
-
inhibitor protein Sml1 competes with the C-terminal domain of subunit R1 for association with its N-terminal domain to hinder the accessibility of the CX2C motif to the active site for R1 regeneration during the catalytic cycle
-
Sml1 protein
-
a 104-residue Saccharomyces cerevisiae protein, inhibits ribonucleotide reductase activity by binding to the R1 subunit interacting with the N-terminal domain of R1, R1-NTD, which involves a conserved two-residue sequence motif in the R1-NTD, the Sml1-R1 interaction causes SML1-dependent lethality, overview
-
sodium arsenite
-
0.025 mM, almost complete inhibition of CDP reduction, 86% inhibition of GDP reduction
Synthetic peptides
-
which specifically inhibit the activity of virus-induced enzyme
-
Thenoyltrifluoroacetone
triapine
YAGAVVNDL
Herpes simplex virus
-
peptide may prevent association of the two subunits by competing for the subunit binding site
YGAVVNDL
Herpes simplex virus
-
-
[bis(2-acetylpyridine N,N-dimethylthiosemicarbazonato)-N,N,S-gallium(III)] hexafluorophosphate
-
-
[bis(2-acetylpyridine N,N-dimethylthiosemicarbazonato)-N,N,S-iron(III)] hexafluorophosphate
-
-
[bis(2-acetylpyridine N,N-dimethylthiosemicarbazonato)-N,N,S-iron(III)] tetrachloroferrate(III)
-
-
[bis(2-acetylpyridine N-pyrrolidinylthiosemicarbazonato)-N,N,S-gallium(III)] hexafluorophosphate
-
-
[bis(2-acetylpyridine N-pyrrolidinylthiosemicarbazonato)-N,N,S-iron(III)] hexafluorophosphate
-
-
[bis(2-acetylpyridine N-pyrrolidinylthiosemicarbazonato)-N,N,S-iron(III)] tetrachloroferrate(III)
-
-
[bis(acetylpyrazine N,N-dimethylthiosemicarbazonato)-N,N,S-gallium(III)] hexafluorophosphate
-
-
[bis(acetylpyrazine N,N-dimethylthiosemicarbazonato)-N,N,S-iron(III)] hexafluorophosphate
-
-
[bis(acetylpyrazine N,N-dimethylthiosemicarbazonato)-N,N,S-iron(III)] tetrachloroferrate(III)
-
-
[bis(acetylpyrazine N-piperidinylthiosemicarbazonato)-N,N,S-gallium(III)] hexafluorophosphate
-
-
[bis(acetylpyrazine N-piperidinylthiosemicarbazonato)-N,N,S-iron(III)] hexafluorophosphate
-
-
[bis(acetylpyrazine N-piperidinylthiosemicarbazonato)-N,N,S-iron(III)] tetrachloroferrate(III)
-
-
[bis(acetylpyrazine N-pyrrolidinylthiosemicarbazonato)-N,N,S-gallium(III)] hexafluorophosphate
-
-
[bis(acetylpyrazine N-pyrrolidinylthiosemicarbazonato)-N,N,S-iron(III)] hexafluorophosphate
-
-
[bis(acetylpyrazine N-pyrrolidinylthiosemicarbazonato)-N,N,S-iron(III)] tetrachloroferrate(III)
-
-
[FeCl4] 2-acetylpyridine N,N-dimethylthiosemicarbazone
-
Ga(III) and Fe(III) complexes destroy the tyrosyl radical of the presumed target ribonucleotide reductase
[FeCl4] 2-acetylpyridine N-pyrrolidinylthiosemicarbazone
-
-
[FeCl4] acetylpyrazine N,N-dimethylthiosemicarbazone
-
-
[FeCl4] acetylpyrazine N-piperidinylthiosemicarbazone
-
-
[FeCl4] acetylpyrazine N-pyrrolidinylthiosemicarbazone
-
-
[GalCl2] 2-acetylpyridine N,N-dimethylthiosemicarbazone
-
Ga(III) and Fe(III) complexes destroy the tyrosyl radical of the presumed target ribonucleotide reductase
[GalCl2] 2-acetylpyridine N-pyrrolidinylthiosemicarbazone
-
-
[GalCl2] acetylpyrazine N,N-dimethylthiosemicarbazone
-
-
[GalCl2] acetylpyrazine N-piperidinylthiosemicarbazone
-
-
[GalCl2] acetylpyrazine N-pyrrolidinylthiosemicarbazone
-
-
additional information
-