X-ray diffraction
2.06Å resolution

The S31N mutant of the influenza A M2 proton channel in two distinct conformational states

Entry authors: Thomaston JL, DeGrado WF

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Matrix protein 2 Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 27 amino acids
Theoretical weight: 2.78 KDa
Source organism: Influenza A virus (A/pigeon/Jiangsu/K23/2013(H9N2))
Expression system: Not provided
  • Canonical: A0A0R5TVW3 (Residues: 20-44; Coverage: 28%)
Gene name: M2

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.3.1
Spacegroup: P21
Unit cell:
a: 36.29Å b: 36.15Å c: 76.45Å
α: 90° β: 103.6° γ: 90°
R R work R free
0.22 0.217 0.248
Expression system: Not provided