3P9G

Crystal structure of the TSG101 UEV domain in complex with FA459 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Elucidation of New Binding Interactions with the Tumor Susceptibility Gene 101 (Tsg101) Protein Using Modified HIV-1 Gag-p6 Derived Peptide Ligands.

Kim, S.E.Liu, F.Im, Y.J.Stephen, A.G.Fivash, M.J.Waheed, A.A.Freed, E.O.Fisher, R.J.Hurley, J.H.Burke, T.R.

(2011) ACS Med Chem Lett 2: 337-341

  • DOI: 10.1021/ml1002579
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Targeting protein-protein interactions is gaining greater recognition as an attractive approach to therapeutic development. An example of this may be found with the human cellular protein encoded by the tumor susceptibility gene 101 (Tsg101), where i ...

    Targeting protein-protein interactions is gaining greater recognition as an attractive approach to therapeutic development. An example of this may be found with the human cellular protein encoded by the tumor susceptibility gene 101 (Tsg101), where interaction with the p6 C-terminal domain of the nascent viral Gag protein is required for HIV-1 particle budding and release. This association of Gag with Tsg101 is highly dependent on a "Pro-Thr-Ala-Pro" ("PTAP") peptide sequence within the p6 protein. Although p6-derived peptides offer potential starting points for developing Tsg101-binding inhibitors, the affinities of canonical peptides are outside the useful range (K(d) values greater than 50 μM). Reported herein are crystal structures of Tsg101 in complex with two structurally-modified PTAP-derived peptides. This data define new regions of ligand interaction not previously identified with canonical peptide sequences. This information could be highly useful in the design of Tsg101-binding antagonists.


    Organizational Affiliation

    Chemical Biology Laboratory, Molecular, Discovery Program, CCR, NCI-Frederick, Frederick, MD 21702.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tumor susceptibility gene 101 protein
A
145Homo sapiensMutation(s): 0 
Gene Names: TSG101
Find proteins for Q99816 (Homo sapiens)
Go to Gene View: TSG101
Go to UniProtKB:  Q99816
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Gag polyprotein
B
11N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  3 Unique
IDChainsTypeFormula2D DiagramParent
NH2
Query on NH2
B
NON-POLYMERH2 N

--

ZYK
Query on ZYK
B
L-peptide linkingC14 H18 N2 O6PRO
ACE
Query on ACE
B
NON-POLYMERC2 H4 O

--

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 33.556α = 90.00
b = 45.657β = 90.00
c = 88.521γ = 90.00
Software Package:
Software NamePurpose
StructureStudiodata collection
MOLREPphasing
HKL-3000data scaling
HKL-2000data reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2010-10-17 
  • Released Date: 2011-06-29 
  • Deposition Author(s): Hurley, J.H., Im, Y.J.

Revision History 

  • Version 1.0: 2011-06-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance