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X-RAY CRYSTAL STRUCTURE OF YEAST RNA TRIPHOSPHATASE IN COMPLEX WITH SULFATE AND MANGANESE IONS.

X-ray diffraction
2Å resolution
PDB entry 1d8h coloured by chain, front view.
PDB entry 1d8h coloured by chain, side view.
PDB entry 1d8h coloured by chain, top view.
Source organism: Saccharomyces cerevisiae
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: mRNA-capping enzyme subunit beta
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Multimeric state: homo dimer
Accessible surface area: 27651.9 Å2
Buried surface area: 5143.85 Å2
Dissociation area: 2,146.53 Å2
Dissociation energy (ΔGdiss): 24.26 kcal/mol
Dissociation entropy (TΔSdiss): 13.88 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-126743
Assembly 2
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Assembly Name: mRNA-capping enzyme subunit beta
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Multimeric state: homo dimer
Accessible surface area: 27670.65 Å2
Buried surface area: 5208.94 Å2
Dissociation area: 2,175.13 Å2
Dissociation energy (ΔGdiss): 23.16 kcal/mol
Dissociation entropy (TΔSdiss): 13.88 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-126743

Macromolecules

mRNA-capping enzyme subunit beta
Chains: A, B, C
Length: 311 amino acids
Theoretical weight: 35.69 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O13297 (Residues: 241-549; Coverage: 56%)
Gene names: CET1, P1433, YPL228W
Pfam: mRNA capping enzyme, beta chain
InterPro:
CATH: mRNA triphosphatase Cet1-like
SCOP: mRNA triphosphatase CET1
mRNA-capping enzyme subunit beta in PDB entry 1d8h, assembly 1, front view.
mRNA-capping enzyme subunit beta in PDB entry 1d8h, assembly 1, side view.
mRNA-capping enzyme subunit beta in PDB entry 1d8h, assembly 1, top view.
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