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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
catalytic mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
proposed mechanism
Tequatrovirus T4
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
postulated mechanism, radical cation intermediates
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
postulated mechanism, radical cation intermediates
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
allosteric regulation of the catalytic activity of subunit R1
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
kinetics and mechanism of formation of the tyrosyl radical and micro-oxo-diiron cluster in the R2 subunit
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
NDP reduction requires cleavage of the 3'-C-H bond of the substrate, hypothesis of enzyme mechanism
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
binding of specificity effector rearranges loop 2 and moves residue P294 out of the catalytic site, accomodating substrate binding. substrate binding further rearranges loop2. Cross-talk occurs largely through R293 and Q288 of loop 2. Substrate ribose binds with its 3 hydroxyl closer than its 2 hydroxyl to residue C218 of the catalytic redox pair
2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
presence of divalent cations mediates a rapid radical-transfer equilibrium between W48 and Y356. Cation-mediated propagation of the radical from W48 to Y356 gives rise to a fast phase of Y radical production that is essentially coincident with W48 cation radical formation and creates an efficient pathway for decay of W48 cation radical
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
reaction involves formation of a keto-deoxyribonucleotide intermediate. In case of furanone inhibitors, the intermediate dissociates from the active site, depending on the solvation free energy of the 2-substituents, its influence inside the active site, and the charge transfer mechanism from a protein side chain to solution as thermodynamic driving forces. Substrates do not dissociate from the active site but complete the catalytic cycle
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
role of enzyme in second step of catalytic mechanism which corresponds to the protonation/elimination of the substrates C2 hydroxyl group is mainly entropic by placing the substrate and the two reactive residues in a position that allows for the highly favorable concerted trimolecular reaction, and to protect the enzyme radical from the solvent
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
reaction mechanism via formation of a tyrosyl radical at Tyr356 od subunit R1, model for radical transport in which there is a unidirectional transport of the electron and proton transport among residues of R1
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2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
reaction mechanism, two possible pathways, overview
2'-deoxyribonucleoside 5'-diphosphate + thioredoxin disulfide + H2O = ribonucleoside 5'-diphosphate + thioredoxin
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