5VKG

Solution-state NMR structural ensemble of human Tsg101 UEV in complex with tenatoprazole


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Tsg101 chaperone function revealed by HIV-1 assembly inhibitors.

Strickland, M.Ehrlich, L.S.Watanabe, S.Khan, M.Strub, M.P.Luan, C.H.Powell, M.D.Leis, J.Tjandra, N.Carter, C.A.

(2017) Nat Commun 8: 1391-1391

  • DOI: 10.1038/s41467-017-01426-2
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • HIV-1 replication requires Tsg101, a component of cellular endosomal sorting complex required for transport (ESCRT) machinery. Tsg101 possesses an ubiquitin (Ub) E2 variant (UEV) domain with a pocket that can bind PT/SAP motifs and another pocket tha ...

    HIV-1 replication requires Tsg101, a component of cellular endosomal sorting complex required for transport (ESCRT) machinery. Tsg101 possesses an ubiquitin (Ub) E2 variant (UEV) domain with a pocket that can bind PT/SAP motifs and another pocket that can bind Ub. The PTAP motif in the viral structural precursor polyprotein, Gag, allows the recruitment of Tsg101 and other ESCRTs to virus assembly sites where they mediate budding. It is not known how or even whether the UEV Ub binding function contributes to virus production. Here, we report that disruption of UEV Ub binding by commonly used drugs arrests assembly at an early step distinct from the late stage involving PTAP binding disruption. NMR reveals that the drugs form a covalent adduct near the Ub-binding pocket leading to the disruption of Ub, but not PTAP binding. We conclude that the Ub-binding pocket has a chaperone function involved in bud initiation.


    Organizational Affiliation

    Department of Molecular Genetics & Microbiology, School of Medicine, Stony Brook University, Stony Brook, NY, 11794-5222, USA. carol.carter@stonybrook.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tumor susceptibility gene 101 proteinA145Homo sapiensMutation(s): 1 
Gene Names: TSG101
Find proteins for Q99816 (Homo sapiens)
Explore Q99816 
Go to UniProtKB:  Q99816
NIH Common Fund Data Resources
PHAROS  Q99816
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
4N1
Query on 4N1

Download CCD File 
A
4-methoxy-1-(5-methoxy-3H-imidazo[4,5-b]pyridin-2-yl)-3,5-dimethyl-2-(sulfanylmethyl)pyridin-1-ium
C16 H19 N4 O2 S
IOWWPLTUCPQFIL-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 5VKG Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-11-15
    Type: Initial release
  • Version 1.1: 2017-11-22
    Changes: Database references