PDBe 3tuz

X-ray diffraction
3.4Å resolution

Inward facing conformations of the MetNI methionine ABC transporter: CY5 SeMet soak crystal form

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Methionine import ATP-binding protein MetN Chains: C, D, G, H
Molecule details ›
Chains: C, D, G, H
Length: 366 amino acids
Theoretical weight: 40.61 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P30750 (Residues: 1-343; Coverage: 100%)
Gene names: JW0195, abc, b0199, metN
Sequence domains:
Structure domains:
D-methionine transport system permease protein MetI Chains: A, B, E, F
Molecule details ›
Chains: A, B, E, F
Length: 217 amino acids
Theoretical weight: 23.27 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P31547 (Residues: 1-217; Coverage: 100%)
Gene names: JW0194, b0198, metI, yaeE
Sequence domains: Binding-protein-dependent transport system inner membrane component
Structure domains: MetI-like

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL12-2
Spacegroup: P21
Unit cell:
a: 83.31Å b: 138.89Å c: 147.51Å
α: 90° β: 95.72° γ: 90°
R-values:
R R work R free
0.262 0.26 0.306
Expression system: Escherichia coli BL21