7rye

Electron Microscopy
3.9Å resolution

Cryo-EM structure of the needle filament-tip complex of the Salmonella type III secretion injectisome

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero 24-mer (preferred)
PDBe Complex ID:
PDB-CPX-154440 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
SPI-1 type 3 secretion system needle filament protein Chains: A, B, C, D, E, G, H, I, J, K, L, M, N, P, Q, S, T, U, W
Molecule details ›
Chains: A, B, C, D, E, G, H, I, J, K, L, M, N, P, Q, S, T, U, W
Length: 80 amino acids
Theoretical weight: 8.86 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium
UniProt:
  • Canonical: P41784 (Residues: 1-80; Coverage: 100%)
Gene names: STM2873, prgI, sctF1
Sequence domains: Type III secretion needle MxiH, YscF, SsaG, EprI, PscF, EscF
Cell invasion protein SipD Chains: F, O, R, V, X
Molecule details ›
Chains: F, O, R, V, X
Length: 343 amino acids
Theoretical weight: 37.14 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium
UniProt:
  • Canonical: Q56026 (Residues: 1-343; Coverage: 100%)
Gene names: STM2883, sipD, sspD
Sequence domains: Type III secretion systems tip complex components

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.9Å
Relevant EMDB volumes: EMD-24735