5u1f

Electron Microscopy
6.8Å resolution

Initial contact of HIV-1 Env with CD4: Cryo-EM structure of BG505 DS-SOSIP trimer in complex with CD4 and antibody PGT145

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero nonamer (preferred)
PDBe Complex ID:
PDB-CPX-208503 (preferred)
Entry contents:
5 distinct polypeptide molecules
Macromolecules (5 distinct):
Envelope glycoprotein gp160 Chains: A, C, D
Molecule details ›
Chains: A, C, D
Length: 501 amino acids
Theoretical weight: 55.88 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Homo sapiens
UniProt:
  • Canonical: Q2N0S6 (Residues: 29-502; Coverage: 55%)
Gene name: env
Sequence domains: Envelope glycoprotein GP120
Transmembrane protein gp41 Chains: B, E, F
Molecule details ›
Chains: B, E, F
Length: 178 amino acids
Theoretical weight: 20.2 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Homo sapiens
UniProt:
  • Canonical: Q2N0S6 (Residues: 508-661; Coverage: 18%)
Gene name: env
Sequence domains: Retroviral envelope protein
PGT145 heavy chain Chain: H
Molecule details ›
Chain: H
Length: 267 amino acids
Theoretical weight: 28.95 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
PGT145 light chain Chain: L
Molecule details ›
Chain: L
Length: 239 amino acids
Theoretical weight: 26.05 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
T-cell surface glycoprotein CD4 Chain: M
Molecule details ›
Chain: M
Length: 363 amino acids
Theoretical weight: 40.46 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: P01730 (Residues: 26-388; Coverage: 84%)
Gene name: CD4
Sequence domains:

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
Resolution: 6.8Å
Relevant EMDB volumes: EMD-8427
Expression system: Homo sapiens