› 1a0t

X-ray diffraction
2.4Å resolution

SUCROSE-SPECIFIC PORIN, WITH BOUND SUCROSE MOLECULES

Released:
DOI: 10.2210/pdb1a0t/pdb
PDB entry 1a0t coloured by chain, front view.
PDB entry 1a0t coloured by chain, side view.
PDB entry 1a0t coloured by chain, top view.
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium
Primary publication:
Structure of the sucrose-specific porin ScrY from Salmonella typhimurium and its complex with sucrose.
Forst D, Welte W, Wacker T, Diederichs K
Nat Struct Biol 5 37-46 (1998)
PMID: 9437428

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo trimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-149600 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Sucrose porin Chains: P, Q, R
Molecule details ›
Chains: P, Q, R
Length: 413 amino acids
Theoretical weight: 45.33 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium
Expression system: Escherichia coli
UniProt:
  • Canonical: P22340 (Residues: 93-505; Coverage: 86%)
Gene name: scrY
Sequence domains: LamB porin
Structure domains: Porin, LamB type

Ligands and Environments

Carbohydrate polymer : NEW Components: GLC, FRU
Carbohydrate polymer
1 bound ligand:
Ligand CA 3 x CA
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: OTHER
Spacegroup: P32
Unit cell:
a: 111.8Å b: 111.8Å c: 147.8Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.207 0.207 0.246
Expression system: Escherichia coli

Quick links

Citations

19 review citations

Molecular basis of bacterial outer membrane permeability revisited.
Nikaido H. (2003)
18 more

7 mentions without citation

The structural biology of β-barrel membrane proteins: a summary of recent reports.
Fairman et al. (2011)
6 more