7FF1 | pdb_00007ff1

Structure of C34E136G/N36

• PDB DOI: https://doi.org/10.2210/pdb7FF1/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Human immunodeficiency virus 1
• Mutation(s): Yes 


• Deposited: 2021-07-22 Released: 2022-11-23 
• Deposition Author(s): Yu, D.W., Qin, B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free: 
  0.224 (Depositor), 0.225 (DCC) 
• R-Value Work: 
  0.216 (Depositor), 0.219 (DCC) 
• R-Value Observed: 
  0.216 (Depositor) 

Starting Model: experimental

Literature

Structure of C34E136G/N36

Yu, D.W., Qin, B.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 Pseudo Symmetry: Dihedral - D3  (Explore in 3D)
Pseudo Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: isothermal titration calorimetry

Macromolecule Content 

• Total Structure Weight: 25.08 kDa 
• Atom Count: 1,900 
• Modeled Residue Count: 216 
• Deposited Residue Count: 216 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
gp41 N36	A [auth N], C [auth B], E	37	Human immunodeficiency virus 1	Mutation(s): 1
UniProt
Find proteins for P04578 (Human immunodeficiency virus type 1 group M subtype B (isolate HXB2)) Explore P04578  Go to UniProtKB:  P04578

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
gp41 C34E136G	B [auth C], D [auth A], F [auth D]	35	Human immunodeficiency virus 1	Mutation(s): 0
UniProt
Find proteins for P04578 (Human immunodeficiency virus type 1 group M subtype B (isolate HXB2)) Explore P04578  Go to UniProtKB:  P04578

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free:  0.224 (Depositor), 0.225 (DCC) 
• R-Value Work:  0.216 (Depositor), 0.219 (DCC) 
• R-Value Observed: 0.216 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 88.089	α = 90
b = 50.391	β = 90.13
c = 56.909	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2022-11-23 
Deposition Author(s): Yu, D.W., Qin, B.

Revision History  

• Version 1.0: 2022-11-23
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description
• Version 1.2: 2024-10-23
  Changes: Structure summary
• Version 1.3: 2025-03-12
  Changes: Database references