5w8u

X-ray diffraction
2.41Å resolution

Crystal structure of MERS-CoV papain-like protease in complex with the C-terminal domain of human ISG15

Released:

Function and Biology Details

Reactions catalysed:
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]
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:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-126023 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
ORF1ab protein Chains: A, C
Molecule details ›
Chains: A, C
Length: 322 amino acids
Theoretical weight: 35.82 KDa
Source organism: Human betacoronavirus 2c EMC/2012
Expression system: Escherichia coli
UniProt:
  • Canonical: M4STU1 (Residues: 1482-1803; Coverage: 5%)
Gene name: ORF1ab
Sequence domains: Coronavirus papain-like peptidase
Structure domains:
Ubiquitin-like protein ISG15 Chains: B, D
Molecule details ›
Chains: B, D
Length: 79 amino acids
Theoretical weight: 8.91 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P05161 (Residues: 80-156; Coverage: 47%)
Gene names: G1P2, ISG15, UCRP
Sequence domains: Ubiquitin family

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P43
Unit cell:
a: 86.37Å b: 86.37Å c: 224.087Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.214 0.212 0.237
Expression system: Escherichia coli