PDBe 1ihs

X-ray diffraction
2Å resolution

CRYSTAL STRUCTURE OF THE COMPLEX OF HUMAN ALPHA-THROMBIN AND NON-HYDROLYZABLE BIFUNCTIONAL INHIBITORS, HIRUTONIN-2 AND HIRUTONIN-6

Released:

Function and Biology Details

Reaction catalysed:
Selective cleavage of Arg-|-Gly bonds in fibrinogen to form fibrin and release fibrinopeptides A and B.
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Thrombin light chain Chain: L
Molecule details ›
Chain: L
Length: 36 amino acids
Theoretical weight: 4.1 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P00734 (Residues: 328-363; Coverage: 6%)
Gene name: F2
Thrombin heavy chain Chain: H
Molecule details ›
Chain: H
Length: 259 amino acids
Theoretical weight: 29.78 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P00734 (Residues: 364-622; Coverage: 43%)
Gene name: F2
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases
Hirudin-2 Chain: I
Molecule details ›
Chain: I
Length: 21 amino acids
Theoretical weight: 2.53 KDa
Source organism: Hirudo medicinalis
Expression system: Not provided
UniProt:
  • Canonical: P28504 (Residues: 49-65; Coverage: 26%)

Ligands and Environments

No bound ligands

1 modified residue:

Experiments and Validation Details

Entry percentile scores
Spacegroup: C2
Unit cell:
a: 71Å b: 72.1Å c: 73.1Å
α: 90° β: 100.9° γ: 90°
R-values:
R R work R free
0.169 0.169 not available
Expression system: Not provided