MolNFT v1 · #21592 · protein
High resolution structure of a potent, cyclic protease inhibitor from sunflower seeds
1SFI · Trypsin: “High resolution structure of a potent, cyclic protease inhibitor from sunflower seeds”. X-ray diffraction, 2 ligands (CA, SO4). MolNFT v1 #21592 on GenesisL1: 3D structure, binding sites and pockets in GL1X.
- PDB
- 1SFI
- Type
- protein
- Length
- 237 residues
- Chains
- 2
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Trypsin; Trypsin inhibitor 1
- EC
- 3.4.21.4
- UniProt
- P00760
- Ligands
- CA, SO4
Structure
x-ray diffraction · 2 distinct chains · 10% helix, 35% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Trypsin (EC 3.4.21.4) | protein | 223 | 11% helix, 36% strand | P00760 |
| I | Trypsin inhibitor 1 | protein | 14 | 0% helix, 29% strand | — |
Ligands and binding sites
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Interfaces
1 interface between chains.
- A–I · 703 Ų buried · 16 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 7 disulfide (disulfide).
Compared structures
- 1SFI · High resolution structure of a potent, cyclic protease inhibitor from sunflower seeds · the same entry in another collection · chain A against A, TM-score 1.00
Analyse
- Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
- Every structure of UniProt P00760
- Elsewhere: RCSB PDB 1SFI · PDBe 1SFI · UniProt P00760
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