HIV-1 Protease Saquinavir:Ritonavir 1:15 complex structure

Experimental Data Snapshot

  • Resolution: 1.14 Å

wwPDB Validation   3D Report Full Report

Ligand Structure Quality Assessment 

This is version 1.2 of the entry. See complete history


Investigation of 2-Fold Disorder of Inhibitors and Relative Potency by Crystallizations of HIV-1 Protease in Ritonavir and Saquinavir Mixtures

Olajuyigbe, F.M.Demitri, N.Geremia, S.

(2011) Cryst Growth Des 11: 4378-4385

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ProteaseA, B99Human immunodeficiency virus 1Mutation(s): 5 
Gene Names: pol
EC: (PDB Primary Data), (UniProt), (UniProt), (UniProt), (UniProt), 2.7.7 (UniProt), 3.1 (UniProt)
Find proteins for P03367 (Human immunodeficiency virus type 1 group M subtype B (isolate BRU/LAI))
Explore P03367 
Go to UniProtKB:  P03367
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03367
Protein Feature View
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
RIT BindingDB:  3NDW Ki: min: 0.01, max: 109 (nM) from 35 assay(s)
Kd: min: 0.6, max: 0.61 (nM) from 2 assay(s)
IC50: min: 67, max: 9850 (nM) from 2 assay(s)
EC50: 150 (nM) from 1 assay(s)
-TΔS: min: -1.02e+2, max: -3.01e+1 (kJ/mol) from 42 assay(s)
ΔH: min: -2.76e+1, max: 73.15 (kJ/mol) from 44 assay(s)
ΔG: min: -6.02e+1, max: -2.88e+1 (kJ/mol) from 43 assay(s)
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChainsNameType/Class2D Diagram3D Interactions
PRD_001001 (RIT)
Query on PRD_001001
C [auth A]RITONAVIRPeptide-like / Inhibitor Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Resolution: 1.14 Å
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.254α = 90
b = 58.793β = 90
c = 61.334γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SHELXmodel building
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-07-20
    Type: Initial release
  • Version 1.1: 2011-12-07
    Changes: Database references
  • Version 1.2: 2012-12-12
    Changes: Other