› 4k4x

X-ray diffraction
2.37Å resolution

Coxsackievirus B3 polymerase elongation complex (r2_form), rna

Released:
DOI: 10.2210/pdb4k4x/pdb
PDB entry 4k4x coloured by chain, front view.
PDB entry 4k4x coloured by chain, side view.
PDB entry 4k4x coloured by chain, top view.
Source organism: Coxsackievirus B3
Primary publication:
Structures of coxsackievirus, rhinovirus, and poliovirus polymerase elongation complexes solved by engineering RNA mediated crystal contacts.
Gong P, Kortus MG, Nix JC, Davis RE, Peersen OB
PLoS One 8 e60272 (2013)
PMID: 23667424

Function and Biology Details

Reactions catalysed: 
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Selective cleavage of Gln-|-Gly bond in the poliovirus polyprotein. In other picornavirus reactions Glu may be substituted for Gln, and Ser or Thr for Gly.
Selective cleavage of Tyr-|-Gly bond in picornavirus polyprotein.
NTP + H(2)O = NDP + phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-178363 (preferred)
Entry contents:
1 distinct polypeptide molecule
3 distinct RNA molecules
Macromolecules (4 distinct):
RNA-dependent RNA polymerase Chains: A, E, I, M
Molecule details ›
Chains: A, E, I, M
Length: 472 amino acids
Theoretical weight: 53.62 KDa
Source organism: Coxsackievirus B3
Expression system: Escherichia coli
UniProt:
  • Canonical: Q5UEA2 (Residues: 1724-2185; Coverage: 21%)
Sequence domains: Viral RNA-dependent RNA polymerase
Structure domains:
RNA (5'-R(*AP*AP*GP*UP*CP*UP*CP*CP*AP*GP*GP*UP*CP*UP*CP*UP*CP*GP*UP*CP*GP*AP*AP*A)-3') Chains: B, F, J, N
Molecule details ›
Chains: B, F, J, N
Length: 24 nucleotides
Theoretical weight: 7.63 KDa
Source organism: Coxsackievirus B3
Expression system: Not provided
RNA (5'-R(*UP*GP*UP*UP*CP*GP*AP*CP*GP*AP*GP*AP*GP*A)-3') Chains: C, G, K, O
Molecule details ›
Chains: C, G, K, O
Length: 14 nucleotides
Theoretical weight: 4.53 KDa
Source organism: Coxsackievirus B3
Expression system: Not provided
RNA (5'-R(P*GP*GP*GP*AP*GP*AP*UP*GP*A)-3') Chains: D, H, L, P
Molecule details ›
Chains: D, H, L, P
Length: 9 nucleotides
Theoretical weight: 2.97 KDa
Source organism: Coxsackievirus B3
Expression system: Not provided

Ligands and Environments

2 bound ligands:
Ligand GOL 4 x GOL
Ligand MG 4 x MG
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 4.2.2
Spacegroup: P1
Unit cell:
a: 61.001Å b: 61.013Å c: 195.137Å
α: 90.02° β: 89.98° γ: 78.36°
R-values:
R R work R free
0.205 0.204 0.241
Expression systems:
  • Escherichia coli
  • Not provided

Quick links

Citations

8 review citations

RNA Dependent RNA Polymerases: Insights from Structure, Function and Evolution.
Venkataraman et al. (2018)
7 more

6 mentions without citation

Picornaviral polymerase structure, function, and fidelity modulation.
Peersen OB. (2017)
5 more