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Ribonucleotide reductase

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'''Ribonucleotide reductase''' (RNR) or '''ribonucleotide-diphosphate reductase''' catalyzes the formation of deoxyribonucleotides from ribonucleotides<ref>PMID:16756507</ref>. There are 3 classes of RNR.<br />
'''Ribonucleotide reductase''' (RNR) or '''ribonucleotide-diphosphate reductase''' catalyzes the formation of deoxyribonucleotides from ribonucleotides<ref>PMID:16756507</ref>. There are 3 classes of RNR.<br />
* '''Class I RNR''' is a tetramer composed from large (RNR1) and small (RNR2) subunits. Class I RNR is iron-dependent and produces tyrosyl radical. Thimidine triphosphate (TTP) is an effector in the reaction.<br />
* '''Class I RNR''' is a tetramer composed from large (RNR1) and small (RNR2) subunits. Class I RNR is iron-dependent and produces tyrosyl radical. Thimidine triphosphate (TTP) is an effector in the reaction.<br />
 +
* ''' Class Ib RNR''' contains 2 proteins: α (NrdE) and β (NrdF).<br />
* ''' Class II RNR''' reduces ribonucleotide triphosphates using coenzyme B12.<br />
* ''' Class II RNR''' reduces ribonucleotide triphosphates using coenzyme B12.<br />
* '''Class III RNR''' generate glycine radical using S-adenosyl methionine and Fe-S center.<br />
* '''Class III RNR''' generate glycine radical using S-adenosyl methionine and Fe-S center.<br />
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**[[3hne]], [[3hnf]] – hRNR M1 + ATP + TTP<BR />
**[[3hne]], [[3hnf]] – hRNR M1 + ATP + TTP<BR />
**[[2wgh]], [[5d1y]] - hRNR M1 + ATP + Mg<BR />
**[[2wgh]], [[5d1y]] - hRNR M1 + ATP + Mg<BR />
-
**[[4x3v]] - hRNR M1 + inhibitor<br />
+
**[[6aui]] - hRNR M1 + ATP + CDP<br />
 +
**[[5tus]], [[4x3v]] - hRNR M1 + inhibitor + TTP<br />
**[[3paw]] - yRNR R1 + ATP<BR />
**[[3paw]] - yRNR R1 + ATP<BR />
**[[3k8t]] - yRNR R1 + ADP analog<BR />
**[[3k8t]] - yRNR R1 + ADP analog<BR />
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**[[2ani]] - CtRNR R2 (mutant) + Fe + Pb<BR />
**[[2ani]] - CtRNR R2 (mutant) + Fe + Pb<BR />
**[[4m1h]] - CtRNR R2 <br />
**[[4m1h]] - CtRNR R2 <br />
-
**[[4dr0]] - RNR + Mn – Bacillus subtilis<br />
 
**[[1uzr]] – RNR R2 – ''Mycobacterium tuberculosis''<BR />
**[[1uzr]] – RNR R2 – ''Mycobacterium tuberculosis''<BR />
**[[3olj]] – hRNR M2<br />
**[[3olj]] – hRNR M2<br />
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**[[3vpm]], [[3vpn]], [[3vpo]] – hRNR M2 (mutant)<br />
**[[3vpm]], [[3vpn]], [[3vpo]] – hRNR M2 (mutant)<br />
**[[2rcc]] – RNR – ''Bacillus halodurans''<br />
**[[2rcc]] – RNR – ''Bacillus halodurans''<br />
-
**[[4bmq]], [[4bmr]], [[4bmt]] - BcRNR + Fe – ''Bacillus cereus''<br />
 
-
**[[4bmu]] - BcRNR + Mn<br />
 
**[[4n83]] - SsRNR + Mn<br />
**[[4n83]] - SsRNR + Mn<br />
 +
**[[4hr5]] - GkRNR – ''Geobacillus kaustophilus''<br />
 +
**[[5omj]], [[5omk]] - GkRNR + Fe <br />
 +
**[[4hr0]], [[4hr4]] - GkRNR + Fe + Mn <br />
 +
**[[6f6c]], [[6f6e]], [[6f6f]], [[6f6g]], [[6f6h]], [[6f6k]] - GkRNR (mutant) + Fe + Mn <br />
 +
**[[6cwo]], [[6cwq]] - FjRNR + Mn – ''Flavobacterium johnsoniae''<br />
*''Ribonucleotide reductase small subunit complex''
*''Ribonucleotide reductase small subunit complex''
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**[[5ci3]], [[5ci0]], [[5ci1]], [[5ci2]] – EcRNR R2 (mutant) + fluoro-tyrosine + FE<sub>2</sub>O<br />
**[[5ci3]], [[5ci0]], [[5ci1]], [[5ci2]] – EcRNR R2 (mutant) + fluoro-tyrosine + FE<sub>2</sub>O<br />
**[[1w69]] – mRNR R2 + acetate<br />
**[[1w69]] – mRNR R2 + acetate<br />
-
**[[4bmo]], [[4bmp]] - BcRNR + NrdI <br />
+
**[[6cwp]] – FjRNR + Mn + peptide<br />
*Ribonucleotide reductase small+large subunit
*Ribonucleotide reductase small+large subunit
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**[[5cns]], [[5cnt]], [[5cnv]], [[5cnu]] - EcRNR R1 + R2 + 2 nucleotides<br />
**[[5cns]], [[5cnt]], [[5cnv]], [[5cnu]] - EcRNR R1 + R2 + 2 nucleotides<br />
**[[2bq1]] - StRNR R1+ R2<br />
**[[2bq1]] - StRNR R1+ R2<br />
-
**[[5im3]] - RNR + dATP – ''Pseudomonas aeruginosa''<br />
+
**[[5im3]] - RNR + dATP – ''Pseudomonas aeruginosa''<br />
 +
 
 +
Class Ib RNR
 +
 
 +
**[[6cgm]] - BaRNR subunit NrdE – ''Bacillus subtilis''<br />
 +
**[[6cgn]], [[6cgl]] - BaRNR subunit NrdE + AMP derivative <br />
 +
**[[4dr0]] - BaRNR subunit NrdF + Mn <br />
 +
**[[4bmq]], [[4bmr]], [[4bmt]] - BcRNR NrdF + Fe – ''Bacillus cereus''<br />
 +
**[[4bmu]] - BcRNR NrdF + Mn<br />
 +
**[[4bmo]], [[4bmp]] - BcRNR NrdF + NrdI + Fe + FMN<br />
*'''Class II ribonucleotide reductase'''
*'''Class II ribonucleotide reductase'''

Revision as of 08:19, 15 October 2018

Class II ribonucleotide reductase dimer complex with dATP, UDP and Mg+2 ion (green) (PDB entry 1xjg)

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3D Structures of Ribonucleotide reductase

Updated on 15-October-2018

Class Ib RNR

References

  1. Nordlund P, Reichard P. Ribonucleotide reductases. Annu Rev Biochem. 2006;75:681-706. PMID:16756507 doi:http://dx.doi.org/10.1146/annurev.biochem.75.103004.142443
  2. Munro JB, Silva JC. Ribonucleotide reductase as a target to control apicomplexan diseases. Curr Issues Mol Biol. 2012;14(1):9-26. Epub 2011 Jul 26. PMID:21791713
  3. Larsson KM, Jordan A, Eliasson R, Reichard P, Logan DT, Nordlund P. Structural mechanism of allosteric substrate specificity regulation in a ribonucleotide reductase. Nat Struct Mol Biol. 2004 Nov;11(11):1142-9. Epub 2004 Oct 10. PMID:15475969 doi:http://dx.doi.org/10.1038/nsmb838

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