3PSU | pdb_00003psu

HIV-1 protease in complex with an isobutyl decorated oligoamine (symmetric binding mode)

• PDB DOI: https://doi.org/10.2210/pdb3PSU/pdb

• Classification: HYDROLASE/HYDROLASE INHIBITOR
• Organism(s): Human immunodeficiency virus type 1 (BRU ISOLATE)
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-12-02 Released: 2011-12-07 
• Deposition Author(s): Lindemann, I., Heine, A., Klebe, G.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.07 Å
• R-Value Free: 
  0.244 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.184 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.189 (Depositor) 

Starting Model: experimental

Literature

Multiple binding modes of a symmetric inhibitor in HIV-1 protease

Lindemann, I., Linde, K., Sammet, B., Heine, A., Diederich, W.E., Klebe, G.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content 

• Total Structure Weight: 11.36 kDa 
• Atom Count: 852 
• Modeled Residue Count: 99 
• Deposited Residue Count: 99 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protease	A	99	Human immunodeficiency virus type 1 (BRU ISOLATE)	Mutation(s): 0  EC: 3.4.23.16
UniProt
Find proteins for P03366 (Human immunodeficiency virus type 1 group M subtype B (isolate BH10)) Explore P03366  Go to UniProtKB:  P03366

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
LJG	B [auth A]	N,N'-(iminodiethane-2,1-diyl)bis[4-amino-N-(2-methylpropyl)benzenesulfonamide] C24 H39 N5 O4 S2 BMXYVKCLBAGXOY-UHFFFAOYSA-N
CL	C [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Binding Affinity Annotations
ID	Source	Binding Affinity
LJG	BindingDB:  3PSU	Ki: 900 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.07 Å
• R-Value Free:  0.244 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.184 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.189 (Depositor) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.652	α = 90
b = 62.652	β = 90
c = 82.438	γ = 120

Software Package:

Software Name	Purpose
MAR345dtb	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-12-07 
Deposition Author(s): Lindemann, I., Heine, A., Klebe, G.

Revision History  

• Version 1.0: 2011-12-07
  Type: Initial release
  
• Version 1.1: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description