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- PDB-3hnc: Crystal structure of human ribonucleotide reductase 1 bound to th... -

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Basic information

Entry
Database: PDB / ID: 3hnc
TitleCrystal structure of human ribonucleotide reductase 1 bound to the effector TTP
ComponentsRibonucleoside-diphosphate reductase large subunit
KeywordsOXIDOREDUCTASE / ribonucleotide reductase / Allosteric enzyme / ATP-binding / DNA replication / Nucleotide-binding
Function / homology
Function and homology information


ribonucleoside-diphosphate reductase activity / pyrimidine nucleobase metabolic process / cell proliferation in forebrain / ribonucleoside diphosphate metabolic process / 2'-deoxyribonucleotide biosynthetic process / positive regulation of G0 to G1 transition / mitochondrial DNA replication / Interconversion of nucleotide di- and triphosphates / ribonucleoside-diphosphate reductase complex / ribonucleoside-diphosphate reductase ...ribonucleoside-diphosphate reductase activity / pyrimidine nucleobase metabolic process / cell proliferation in forebrain / ribonucleoside diphosphate metabolic process / 2'-deoxyribonucleotide biosynthetic process / positive regulation of G0 to G1 transition / mitochondrial DNA replication / Interconversion of nucleotide di- and triphosphates / ribonucleoside-diphosphate reductase complex / ribonucleoside-diphosphate reductase / ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor / deoxyribonucleotide biosynthetic process / protein heterotetramerization / response to ionizing radiation / DNA synthesis involved in DNA repair / positive regulation of G1/S transition of mitotic cell cycle / positive regulation of G2/M transition of mitotic cell cycle / centriolar satellite / male gonad development / disordered domain specific binding / nuclear envelope / retina development in camera-type eye / ciliary basal body / DNA repair / neuronal cell body / mitochondrion / ATP binding / identical protein binding / cytosol
Similarity search - Function
ATP-cone domain / ATP cone domain / ATP-cone domain profile. / Anaerobic Ribonucleotide-triphosphate Reductase Large Chain / Anaerobic Ribonucleotide-triphosphate Reductase Large Chain - #20 / Ribonucleotide reductase, class I , alpha subunit / Ribonucleotide reductase large subunit signature. / Ribonucleoside-diphosphate reductase large subunit / Ribonucleotide reductase R1 subunit, N-terminal / Ribonucleotide reductase large subunit, N-terminal ...ATP-cone domain / ATP cone domain / ATP-cone domain profile. / Anaerobic Ribonucleotide-triphosphate Reductase Large Chain / Anaerobic Ribonucleotide-triphosphate Reductase Large Chain - #20 / Ribonucleotide reductase, class I , alpha subunit / Ribonucleotide reductase large subunit signature. / Ribonucleoside-diphosphate reductase large subunit / 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 / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
THYMIDINE-5'-TRIPHOSPHATE / Ribonucleoside-diphosphate reductase large subunit
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 2.41 Å
AuthorsFairman, J.W. / Wijerathna, S.R. / Xu, H. / Dealwis, C.G.
CitationJournal: Nat Struct Mol Biol / Year: 2011
Title: Structural basis for allosteric regulation of human ribonucleotide reductase by nucleotide-induced oligomerization.
Authors: James Wesley Fairman / Sanath Ranjan Wijerathna / Md Faiz Ahmad / Hai Xu / Ryo Nakano / Shalini Jha / Jay Prendergast / R Martin Welin / Susanne Flodin / Annette Roos / Pär Nordlund / ...Authors: James Wesley Fairman / Sanath Ranjan Wijerathna / Md Faiz Ahmad / Hai Xu / Ryo Nakano / Shalini Jha / Jay Prendergast / R Martin Welin / Susanne Flodin / Annette Roos / Pär Nordlund / Zongli Li / Thomas Walz / Chris Godfrey Dealwis /
Abstract: Ribonucleotide reductase (RR) is an α(n)β(n) (RR1-RR2) complex that maintains balanced dNTP pools by reducing NDPs to dNDPs. RR1 is the catalytic subunit, and RR2 houses the free radical required ...Ribonucleotide reductase (RR) is an α(n)β(n) (RR1-RR2) complex that maintains balanced dNTP pools by reducing NDPs to dNDPs. RR1 is the catalytic subunit, and RR2 houses the free radical required for catalysis. RR is allosterically regulated by its activator ATP and its inhibitor dATP, which regulate RR activity by inducing oligomerization of RR1. Here, we report the first X-ray structures of human RR1 bound to TTP alone, dATP alone, TTP-GDP, TTP-ATP, and TTP-dATP. These structures provide insights into regulation of RR by ATP or dATP. At physiological dATP concentrations, RR1 forms inactive hexamers. We determined the first X-ray structure of the RR1-dATP hexamer and used single-particle electron microscopy to visualize the α(6)-ββ'-dATP holocomplex. Site-directed mutagenesis and functional assays confirm that hexamerization is a prerequisite for inhibition by dATP. Our data indicate a mechanism for regulating RR activity by dATP-induced oligomerization.
History
DepositionMay 31, 2009Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 23, 2011Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Nov 1, 2017Group: Advisory / Refinement description / Category: pdbx_unobs_or_zero_occ_atoms / software
Revision 1.3Feb 21, 2024Group: Advisory / Data collection ...Advisory / Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_unobs_or_zero_occ_atoms / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Ribonucleoside-diphosphate reductase large subunit
B: Ribonucleoside-diphosphate reductase large subunit
hetero molecules


Theoretical massNumber of molelcules
Total (without water)181,94712
Polymers180,3582
Non-polymers1,58910
Water6,485360
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2550 Å2
ΔGint-10.8 kcal/mol
Surface area51650 Å2
MethodPISA
Unit cell
Length a, b, c (Å)68.980, 114.104, 219.283
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Ribonucleoside-diphosphate reductase large subunit / Ribonucleoside-diphosphate reductase subunit M1 / Ribonucleotide reductase large subunit


Mass: 90179.023 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RR1, RRM1 / Plasmid: pET21 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)RIL
References: UniProt: P23921, ribonucleoside-diphosphate reductase
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-TTP / THYMIDINE-5'-TRIPHOSPHATE


Mass: 482.168 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H17N2O14P3
#4: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: SO4
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 360 / Source method: isolated from a natural source / Formula: H2O

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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: 2.39 Å3/Da / Density % sol: 48.59 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 7.9
Details: 0.1 M Tris-HCl pH 7.9, 0.2 M LiSO4, 19% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 23-ID-B / Wavelength: 0.9 Å
DetectorType: MARMOSAIC 300 mm CCD / Detector: CCD / Date: Apr 15, 2008
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9 Å / Relative weight: 1
ReflectionResolution: 2.3→40 Å / Num. obs: 75994 / % possible obs: 97.8 % / Redundancy: 3.4 % / Rmerge(I) obs: 0.091 / Χ2: 1.221 / Net I/σ(I): 13.144
Reflection shell
Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique allΧ2% possible all
2.3-2.382.40.56673491.07695.9
2.38-2.482.80.52574681.05397.7
2.48-2.593.10.47275451.0798.6
2.59-2.733.50.39576211.12399
2.73-2.93.70.28476191.10799
2.9-3.123.70.19676511.09999
3.12-3.443.80.12976841.11998.8
3.44-3.933.80.08476491.5198.2
3.93-4.953.80.05476741.44997.4
4.95-403.70.03777341.40994.5

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Phasing

PhasingMethod: molecular replacement

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Processing

Software
NameVersionClassificationNB
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMAC5.2.0019refinement
PDB_EXTRACT3.005data extraction
MAR345CCDdata collection
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.41→39.53 Å / Cor.coef. Fo:Fc: 0.954 / Cor.coef. Fo:Fc free: 0.926 / Occupancy max: 1 / Occupancy min: 0 / SU B: 16.325 / SU ML: 0.19 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.408 / ESU R Free: 0.256 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.236 3306 5.1 %RANDOM
Rwork0.186 ---
obs0.188 65388 97 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 85.11 Å2 / Biso mean: 46.798 Å2 / Biso min: 20 Å2
Baniso -1Baniso -2Baniso -3
1-0.44 Å20 Å20 Å2
2---0.41 Å20 Å2
3----0.02 Å2
Refinement stepCycle: LAST / Resolution: 2.41→39.53 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms11328 0 90 360 11778
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.02211648
X-RAY DIFFRACTIONr_angle_refined_deg1.2311.95915854
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.82251442
X-RAY DIFFRACTIONr_dihedral_angle_2_deg37.76724.409508
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.579151900
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.3361554
X-RAY DIFFRACTIONr_chiral_restr0.0880.21787
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.028748
X-RAY DIFFRACTIONr_nbd_refined0.1950.25627
X-RAY DIFFRACTIONr_nbtor_refined0.3040.27993
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1410.2614
X-RAY DIFFRACTIONr_metal_ion_refined0.0830.21
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1980.256
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1390.26
X-RAY DIFFRACTIONr_mcbond_it0.4361.57379
X-RAY DIFFRACTIONr_mcangle_it0.761211604
X-RAY DIFFRACTIONr_scbond_it1.10834901
X-RAY DIFFRACTIONr_scangle_it1.7954.54250
LS refinement shellResolution: 2.41→2.48 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.316 199 -
Rwork0.245 3871 -
all-4070 -
obs--82.71 %
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
10.27840.20060.25461.57770.34031.0371-0.0574-0.1336-0.05920.3247-0.050.20790.1318-0.04570.1073-0.1446-0.02920.0134-0.03450.0188-0.0429-2.921330.8296-9.4349
21.85772.02182.16855.02592.51679.99970.0517-0.28390.09740.0276-0.17670.80450.0077-1.01360.1249-0.13840.0130.0134-0.0299-0.0486-0.0432-11.338715.1907-39.0331
30.5956-0.0556-0.01061.46340.45951.0546-0.03070.09570.0101-0.1746-0.04050.052-0.0612-0.02530.0712-0.1521-0.01080.01-0.05490.0258-0.13350.462733.071-34.1713
40.46060.13160.3530.76060.57331.7034-0.07050.28780.0423-0.37820.08020.0215-0.20730.0601-0.00970.01790.00030.00010.05020.0196-0.038-20.8054-22.1037-38.9462
50.79740.38890.00562.07920.71021.2870.00460.10660.0649-0.0049-0.01190.15470.0138-0.12580.0073-0.12140.0202-0.0147-0.12080.0228-0.1598-24.3162-21.4333-13.0373
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A14 - 288
2X-RAY DIFFRACTION2A295 - 316
3X-RAY DIFFRACTION3A326 - 742
4X-RAY DIFFRACTION4B1 - 291
5X-RAY DIFFRACTION5B294 - 742

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