3LIQ

Crystal Structure of HTLV protease complexed with the inhibitor, KNI-10673


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.29 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structures of inhibitor complexes of human T-cell leukemia virus (HTLV-1) protease.

Satoh, T.Li, M.Nguyen, J.T.Kiso, Y.Gustchina, A.Wlodawer, A.

(2010) J.Mol.Biol. 401: 626-641

  • DOI: 10.1016/j.jmb.2010.06.052
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Human T-cell leukemia virus type 1 (HTLV-1) is a retrovirus associated with several serious diseases, such as adult T-cell leukemia and tropical spastic paraparesis/myelopathy. For a number of years, the protease (PR) encoded by HTLV-1 has been a tar ...

    Human T-cell leukemia virus type 1 (HTLV-1) is a retrovirus associated with several serious diseases, such as adult T-cell leukemia and tropical spastic paraparesis/myelopathy. For a number of years, the protease (PR) encoded by HTLV-1 has been a target for designing antiviral drugs, but that effort was hampered by limited available structural information. We report a high-resolution crystal structure of HTLV-1 PR complexed with a statine-containing inhibitor, a significant improvement over the previously available moderate-resolution structure. We also report crystal structures of the complexes of HTLV-1 PR with five different inhibitors that are more compact and more potent. A detailed study of structure-activity relationships was performed to interpret in detail the influence of the polar and hydrophobic interactions between the inhibitors and the protease.


    Organizational Affiliation

    Protein Structure Section, Macromolecular Crystallography Laboratory, National Cancer Institute at Frederick, Frederick, MD 21702, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protease
A, B
116Human T-cell leukemia virus type IMutation(s): 1 
Gene Names: prt
Find proteins for Q82134 (Human T-cell leukemia virus type I)
Go to UniProtKB:  Q82134
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
E14
Query on E14

Download SDF File 
Download CCD File 
B
(4R)-3-[(2S,3S)-3-[[(2S)-2-[[(2S)-2-azanyl-2-phenyl-ethanoyl]amino]-3,3-dimethyl-butanoyl]amino]-2-hydroxy-4-phenyl-butanoyl]-5,5-dimethyl-N-(2-methylpropyl)-1,3-thiazolidine-4-carboxamide
KNI-10673
C34 H49 N5 O5 S
GKUGZHJDSRCEKG-APNLASKRSA-N
 Ligand Interaction
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000578 (E14)
Query on PRD_000578
BKNI-10673Peptide-like / Inhibitor

--

External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
E14IC50: 331.6 nM (96) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.29 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.188 
  • Space Group: P 63 2 2
Unit Cell:
Length (Å)Angle (°)
a = 77.950α = 90.00
b = 77.950β = 90.00
c = 163.204γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-3000data reduction
MAR345data collection
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-07-14
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.2: 2012-12-12
    Type: Other
  • Version 1.3: 2017-11-01
    Type: Refinement description