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CRYSTAL STRUCTURE OF A NON-PSYCHROPHILIC TRYPSIN FROM A COLD-ADAPTED FISH SPECIES.

X-ray diffraction
1.7Å resolution
PDB entry 1a0j coloured by chain, front view.
PDB entry 1a0j coloured by chain, side view.
PDB entry 1a0j coloured by chain, top view.
Source organism: Salmo salar
Assembly composition:
homo tetramer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Trypsin-3
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Multimeric state: homo tetramer
Accessible surface area: 33054.17 Å2
Buried surface area: 8136.54 Å2
Dissociation area: 2,366.5 Å2
Dissociation energy (ΔGdiss): -16.16 kcal/mol
Dissociation entropy (TΔSdiss): 38.42 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-152776
Assembly 2
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Assembly Name: Trypsin-3
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Multimeric state: homo tetramer
Accessible surface area: 31124.26 Å2
Buried surface area: 10066.16 Å2
Dissociation area: 2,508.09 Å2
Dissociation energy (ΔGdiss): 11.76 kcal/mol
Dissociation entropy (TΔSdiss): 26.9 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-152776

Macromolecules

Trypsin-3
Chains: A, B, C, D
Length: 223 amino acids
Theoretical weight: 23.8 KDa
Source organism: Salmo salar
UniProt:
  • Canonical: P35033 (Residues: 16-238; Coverage: 97%)
Pfam: Trypsin
InterPro:
CATH: Trypsin-like serine proteases
SCOP: Eukaryotic proteases
Trypsin-3 in PDB entry 1a0j, assembly 1, front view.
Trypsin-3 in PDB entry 1a0j, assembly 1, side view.
Trypsin-3 in PDB entry 1a0j, assembly 1, top view.
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