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- PDB-2r1r: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN WITH DTTP OCCUPYING THE SPECI... -

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Basic information

Entry
Database: PDB / ID: 2r1r
TitleRIBONUCLEOTIDE REDUCTASE R1 PROTEIN WITH DTTP OCCUPYING THE SPECIFICITY SITE FROM ESCHERICHIA COLI
Components
  • RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
  • RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
KeywordsCOMPLEX (OXIDOREDUCTASE/PEPTIDE) / RIBONUCLEOTIDE REDUCTASE / DEOXYRIBONUCLEOTIDE SYNTHESIS / RADICAL CHEMISTRY / ALLOSTERIC REGULATION / SPECIFICITY / COMPLEX (OXIDOREDUCTASE-PEPTIDE) / COMPLEX (OXIDOREDUCTASE-PEPTIDE) complex
Function / homology
Function and homology information


ribonucleoside diphosphate metabolic process / 2'-deoxyribonucleotide biosynthetic process / nucleobase-containing small molecule interconversion / ribonucleoside-diphosphate reductase complex / ribonucleoside-diphosphate reductase / ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor / deoxyribonucleotide biosynthetic process / protein folding chaperone / DNA replication / iron ion binding ...ribonucleoside diphosphate metabolic process / 2'-deoxyribonucleotide biosynthetic process / nucleobase-containing small molecule interconversion / ribonucleoside-diphosphate reductase complex / ribonucleoside-diphosphate reductase / ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor / deoxyribonucleotide biosynthetic process / protein folding chaperone / DNA replication / iron ion binding / ATP binding / identical protein binding / cytosol / cytoplasm
Similarity search - Function
Ribonucleotide reductase, class I , alpha subunit / Ribonucleotide reductase large subunit signature. / Ribonucleoside-diphosphate reductase large subunit / ATP-cone domain / ATP cone domain / ATP-cone domain profile. / Ribonucleotide reductase R1 subunit, N-terminal / Ribonucleotide reductase large subunit, N-terminal / Ribonucleotide reductase, all-alpha domain / Ribonucleotide reductase large subunit, C-terminal ...Ribonucleotide reductase, class I , alpha subunit / Ribonucleotide reductase large subunit signature. / Ribonucleoside-diphosphate reductase large subunit / ATP-cone domain / ATP cone domain / ATP-cone domain profile. / Ribonucleotide reductase R1 subunit, N-terminal / Ribonucleotide reductase large subunit, N-terminal / Ribonucleotide reductase, all-alpha domain / Ribonucleotide reductase large subunit, C-terminal / Ribonucleotide reductase, barrel domain / Anaerobic Ribonucleotide-triphosphate Reductase Large Chain / Anaerobic Ribonucleotide-triphosphate Reductase Large Chain - #20 / Ribonucleotide reductase small subunit, acitve site / Ribonucleotide reductase small subunit signature. / Ribonucleotide reductase small subunit / Ribonucleotide reductase small subunit family / Ribonucleotide reductase, small chain / Ribonucleotide reductase-like / Ferritin-like superfamily / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
THYMIDINE-5'-TRIPHOSPHATE / Ribonucleoside-diphosphate reductase 1 subunit alpha / Ribonucleoside-diphosphate reductase 1 subunit beta
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / RIGID BODY / Resolution: 3 Å
AuthorsEriksson, M. / Eklund, H.
Citation
Journal: Structure / Year: 1997
Title: Binding of allosteric effectors to ribonucleotide reductase protein R1: reduction of active-site cysteines promotes substrate binding.
Authors: Eriksson, M. / Uhlin, U. / Ramaswamy, S. / Ekberg, M. / Regnstrom, K. / Sjoberg, B.M. / Eklund, H.
#1: Journal: Nature / Year: 1994
Title: Structure of Ribonucleotide Reductase Protein R1
Authors: Uhlin, U. / Eklund, H.
History
DepositionJul 21, 1997Processing site: BNL
Revision 1.0Jan 28, 1998Provider: repository / Type: Initial release
Revision 1.1Mar 25, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
D: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
B: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
E: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
C: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
F: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
P: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)268,16310
Polymers266,7177
Non-polymers1,4473
Water0
1
A: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
D: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
P: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)90,9024
Polymers90,4203
Non-polymers4821
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
E: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)88,6313
Polymers88,1482
Non-polymers4821
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1880 Å2
ΔGint-10 kcal/mol
Surface area29140 Å2
MethodPISA
3
C: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
F: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)88,6313
Polymers88,1482
Non-polymers4821
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1880 Å2
ΔGint-10 kcal/mol
Surface area29140 Å2
MethodPISA
4
A: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
D: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
B: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
E: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules

A: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
D: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
B: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
E: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules

A: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
D: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
B: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
E: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)531,78418
Polymers528,89112
Non-polymers2,8936
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_665-y+1,x-y+1,z1
crystal symmetry operation3_565-x+y,-x+1,z1
Buried area28590 Å2
ΔGint-138 kcal/mol
Surface area157530 Å2
MethodPISA
5
C: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
F: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules
x 6


Theoretical massNumber of molelcules
Total (without water)531,78418
Polymers528,89112
Non-polymers2,8936
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-y,x-y,z1
crystal symmetry operation3_555-x+y,-x,z1
crystal symmetry operation4_555y,x,-z1
crystal symmetry operation5_555x-y,-y,-z1
crystal symmetry operation6_555-x,-x+y,-z1
Buried area28460 Å2
ΔGint-137 kcal/mol
Surface area157670 Å2
MethodPISA
6
A: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
D: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
B: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
E: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)177,2616
Polymers176,2974
Non-polymers9642
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6630 Å2
ΔGint-32 kcal/mol
Surface area55410 Å2
MethodPISA
7
C: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
F: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules

C: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
F: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)177,2616
Polymers176,2974
Non-polymers9642
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation6_555-x,-x+y,-z1
Buried area6680 Å2
ΔGint-32 kcal/mol
Surface area55370 Å2
MethodPISA
8
A: RIBONUCLEOTIDE REDUCTASE R1 PROTEIN
D: RIBONUCLEOTIDE REDUCTASE R2 PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)88,6313
Polymers88,1482
Non-polymers4821
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1890 Å2
ΔGint-10 kcal/mol
Surface area29130 Å2
MethodPISA
Unit cell
Length a, b, c (Å)227.820, 227.820, 343.470
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number155
Space group name H-MH32
Noncrystallographic symmetry (NCS)NCS oper:
IDCodeMatrixVector
1given(-0.9034, 0.4288, 0.0005), (0.4288, 0.9034, 0.0003), (-0.0003, 0.0004, -1)-56.4547, 12.632, -7.8039
2given(-0.729, 0.685, -0.007), (-0.685, -0.729, 0.001), (-0.005, 0.006, 1)-89.859, 95.812, 3.208

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Components

#1: Protein RIBONUCLEOTIDE REDUCTASE R1 PROTEIN


Mass: 85877.086 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: NRDA / Production host: Escherichia coli (E. coli)
References: UniProt: P00452, ribonucleoside-diphosphate reductase
#2: Protein/peptide
RIBONUCLEOTIDE REDUCTASE R2 PROTEIN


Mass: 2271.392 Da / Num. of mol.: 4 / Fragment: C-TERMINAL PORTION, 20 RESIDUES
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / References: UniProt: P69924
#3: Chemical ChemComp-TTP / THYMIDINE-5'-TRIPHOSPHATE / Thymidine triphosphate


Mass: 482.168 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C10H17N2O14P3

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.26 Å3/Da / Density % sol: 46 %
Crystal growpH: 6
Details: PROTEIN WAS CRYSTALLIZED FROM 1.7 M LITHIUM SULFATE, AND 10 MM MAGNESIUM SULFATE IN 25 MM CITRATE BUFFER AT PH 6.0 THE PROTEIN SOLUTION CONTAINED 17 MG/ML R1 PROTEIN, 20-FOLD EXCESS FO A 20- ...Details: PROTEIN WAS CRYSTALLIZED FROM 1.7 M LITHIUM SULFATE, AND 10 MM MAGNESIUM SULFATE IN 25 MM CITRATE BUFFER AT PH 6.0 THE PROTEIN SOLUTION CONTAINED 17 MG/ML R1 PROTEIN, 20-FOLD EXCESS FO A 20-RESIDUE PEPTIDE CORRESPONDING TO THE C-TERMINUS OF THE R2 SUBUNIT AND IS ESSENTIAL FOR CRYSTALLIZATION. 10 MM DTTP AND 10 MM CDP WAS ALSO INCLUDED IN THE PROTEIN SOLUTION
Crystal grow
*PLUS
Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formulaDetails
117 mg/mlproteinase1drop
310 mMdTTP1drop
410 mMCDP1drop
517 %1reservoirLi2SO4
610 mM1reservoirMgSO4
725 mMcitrate1reservoirpH6.0
2peptide1drop20-fold excess

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Data collection

DiffractionMean temperature: 283 K
Diffraction sourceSource: SYNCHROTRON / Site: SRS / Beamline: PX9.6 / Wavelength: 0.87
DetectorDate: Nov 1, 1993
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.87 Å / Relative weight: 1
ReflectionResolution: 3→20 Å / Num. obs: 68245 / % possible obs: 83 % / Observed criterion σ(I): 0 / Redundancy: 2.6 % / Rmerge(I) obs: 0.095 / Rsym value: 0.095 / Net I/σ(I): 12.3
Reflection shellResolution: 3→3.1 Å / Redundancy: 2.2 % / Rmerge(I) obs: 0.35 / Mean I/σ(I) obs: 3.4 / Rsym value: 0.35 / % possible all: 43
Reflection shell
*PLUS
% possible obs: 43 %

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Processing

Software
NameClassification
DENZOdata reduction
SCALEPACKdata scaling
TNTrefinement
REFMACrefinement
TNTphasing
RefinementMethod to determine structure: RIGID BODY / Resolution: 3→20 Å / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.28 -5 %RANDOM
Rwork0.238 ---
obs0.26 68245 83 %-
Refinement stepCycle: LAST / Resolution: 3→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms17804 0 82 0 17886
Software
*PLUS
Name: REFMAC / Classification: refinement
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_bond_d0.009
X-RAY DIFFRACTIONp_angle_d
X-RAY DIFFRACTIONp_angle_deg2.2

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