8e6b

X-ray diffraction
1.55Å resolution

Function and Biology Details

Reactions catalysed:
S-adenosyl-L-methionine + a 5'-(5'-triphosphoguanosine)-[mRNA] = S-adenosyl-L-homocysteine + a 5'-(N(7)-methyl 5'-triphosphoguanosine)-[mRNA]
S-adenosyl-L-methionine + a 5'-(N(7)-methyl 5'-triphosphoguanosine)-(ribonucleotide)-[mRNA] = S-adenosyl-L-homocysteine + a 5'-(N(7)-methyl 5'-triphosphoguanosine)-(2'-O-methyl-ribonucleotide)-[mRNA]
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
GTP + a 5'-diphospho-[mRNA] = diphosphate + a 5'-(5'-triphosphoguanosine)-[mRNA]
Thiol-dependent hydrolysis of ester, thioester, amide, peptide and isopeptide bonds formed by the C-terminal Gly of ubiquitin (a 76-residue protein attached to proteins as an intracellular targeting signal).
ATP + H(2)O = ADP + phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-125704 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
3C-like proteinase nsp5 Chains: A, B
Molecule details ›
Chains: A, B
Length: 313 amino acids
Theoretical weight: 34.31 KDa
Source organism: Middle East respiratory syndrome-related coronavirus
Expression system: Escherichia coli
UniProt:
  • Canonical: K9N7C7 (Residues: 3248-3553; Coverage: 4%)
Gene names: 1a-1b, rep
Sequence domains: Coronavirus endopeptidase C30

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS-II BEAMLINE 19-ID
Spacegroup: P21
Unit cell:
a: 49.651Å b: 105.943Å c: 58.213Å
α: 90° β: 108.89° γ: 90°
R-values:
R R work R free
0.175 0.174 0.198
Expression system: Escherichia coli