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- PDB-6r4u: Crystal structure of the Pri1 subunit of human primase bound to f... -

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Basic information

Entry
Database: PDB / ID: 6r4u
TitleCrystal structure of the Pri1 subunit of human primase bound to fludarabine triphosphate
ComponentsDNA primase small subunit
KeywordsREPLICATION / Primase / DNA-dependent RNA polymerase / ATP / priming
Function / homology
Function and homology information


DNA primase AEP / ribonucleotide binding / DNA replication initiation / Telomere C-strand synthesis initiation / Inhibition of replication initiation of damaged DNA by RB1/E2F1 / Polymerase switching / alpha DNA polymerase:primase complex / Processive synthesis on the lagging strand / DNA primase activity / Removal of the Flap Intermediate ...DNA primase AEP / ribonucleotide binding / DNA replication initiation / Telomere C-strand synthesis initiation / Inhibition of replication initiation of damaged DNA by RB1/E2F1 / Polymerase switching / alpha DNA polymerase:primase complex / Processive synthesis on the lagging strand / DNA primase activity / Removal of the Flap Intermediate / Polymerase switching on the C-strand of the telomere / primosome complex / DNA replication, synthesis of primer / DNA replication initiation / Activation of the pre-replicative complex / Defective pyroptosis / magnesium ion binding / zinc ion binding / nucleoplasm / membrane
Similarity search - Function
DNA primase, PRIM domain / DNA primase, PRIM domain / DNA primase, small subunit, eukaryotic/archaeal / DNA primase, small subunit / DNA primase small subunit / Alpha-Beta Complex / Alpha Beta
Similarity search - Domain/homology
Chem-HFD / : / DNA primase small subunit
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsKilkenny, M.L. / Pellegrini, L.
Funding support United Kingdom, 1items
OrganizationGrant numberCountry
Wellcome Trust104641/Z/14/Z United Kingdom
CitationJournal: Acs Chem.Biol. / Year: 2019
Title: Structural Basis for Inhibition of Human Primase by Arabinofuranosyl Nucleoside Analogues Fludarabine and Vidarabine.
Authors: Holzer, S. / Rzechorzek, N.J. / Short, I.R. / Jenkyn-Bedford, M. / Pellegrini, L. / Kilkenny, M.L.
History
DepositionMar 24, 2019Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 11, 2019Provider: repository / Type: Initial release
Revision 1.1Oct 2, 2019Group: Data collection / Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.title
Revision 1.2Jan 24, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / entity / pdbx_entity_nonpoly / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn
Item: _chem_comp.name / _database_2.pdbx_DOI ..._chem_comp.name / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: DNA primase small subunit
E: DNA primase small subunit
hetero molecules


Theoretical massNumber of molelcules
Total (without water)98,90411
Polymers97,4412
Non-polymers1,4639
Water3,441191
1
A: DNA primase small subunit
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,4215
Polymers48,7211
Non-polymers7004
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
E: DNA primase small subunit
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,4836
Polymers48,7211
Non-polymers7635
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)110.830, 117.570, 148.800
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number20
Space group name H-MC2221
Space group name HallC2c2

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Components

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Protein , 1 types, 2 molecules AE

#1: Protein DNA primase small subunit / DNA primase 49 kDa subunit / p49


Mass: 48720.516 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PRIM1 / Production host: Escherichia coli BL21(DE3) (bacteria) / Variant (production host): Rosetta2
References: UniProt: P49642, Transferases; Transferring phosphorus-containing groups; Nucleotidyltransferases

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Non-polymers , 5 types, 200 molecules

#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#3: Chemical
ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Mn
#4: Chemical ChemComp-HFD / 2-fluoro-9-{5-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]oxy}phosphoryl]-beta-D-arabinofuranosyl}-9H-purin-6-a mine / Fludarabine-TRIPHOSPHATE


Mass: 525.171 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H15FN5O13P3 / Feature type: SUBJECT OF INVESTIGATION
#5: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H6O2
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 191 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY

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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: 2.49 Å3/Da / Density % sol: 50.55 %
Crystal growTemperature: 292 K / Method: vapor diffusion, sitting drop
Details: 23% PEG3350, 10% ethylene glycol, 200 mM Na/K tartrate

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Diamond / Beamline: I02 / Wavelength: 0.97944 Å
DetectorType: DECTRIS PILATUS 6M-F / Detector: PIXEL / Date: Nov 19, 2014
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97944 Å / Relative weight: 1
ReflectionResolution: 2.2→46.125 Å / Num. obs: 49380 / % possible obs: 99.2 % / Redundancy: 6.5 % / CC1/2: 0.998 / Net I/σ(I): 12.91
Reflection shellResolution: 2.2→2.33 Å / Mean I/σ(I) obs: 1.52 / Num. unique obs: 7541 / CC1/2: 0.83 / % possible all: 95.3

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Processing

Software
NameVersionClassification
PHENIX1.14_3260_000refinement
XDSdata reduction
XDSdata scaling
Cootmodel building
PHENIXphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6RB4

6rb4


Resolution: 2.2→46.125 Å / Cross valid method: FREE R-VALUE
RfactorNum. reflection% reflection
Rfree0.2232 2419 5.01 %
Rwork0.1961 --
obs0.1975 48326 97.06 %
Refinement stepCycle: LAST / Resolution: 2.2→46.125 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6418 0 74 191 6683

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