5J1S

TorsinA-LULL1 complex, H. sapiens, bound to VHH-BS2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.399 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.143 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structures of TorsinA and its disease-mutant complexed with an activator reveal the molecular basis for primary dystonia.

Demircioglu, F.E.Sosa, B.A.Ingram, J.Ploegh, H.L.Schwartz, T.U.

(2016) Elife 5: --

  • DOI: 10.7554/eLife.17983
  • Primary Citation of Related Structures:  5J1T

  • PubMed Abstract: 
  • The most common cause of early onset primary dystonia, a neuromuscular disease, is a glutamate deletion (ΔE) at position 302/303 of TorsinA, a AAA+ ATPase that resides in the endoplasmic reticulum. While the function of TorsinA remains elusive, the Δ ...

    The most common cause of early onset primary dystonia, a neuromuscular disease, is a glutamate deletion (ΔE) at position 302/303 of TorsinA, a AAA+ ATPase that resides in the endoplasmic reticulum. While the function of TorsinA remains elusive, the ΔE mutation is known to diminish binding of two TorsinA ATPase activators: lamina-associated protein 1 (LAP1) and its paralog, luminal domain like LAP1 (LULL1). Using a nanobody as a crystallization chaperone, we obtained a 1.4 Å crystal structure of human TorsinA in complex with LULL1. This nanobody likewise stabilized the weakened TorsinAΔE-LULL1 interaction, which enabled us to solve its structure at 1.4 Å also. A comparison of these structures shows, in atomic detail, the subtle differences in activator interactions that separate the healthy from the diseased state. This information may provide a structural platform for drug development, as a small molecule that rescues TorsinAΔE could serve as a cure for primary dystonia.


    Organizational Affiliation

    Department of Biology, Massachusetts Institute of Technology, Cambridge, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Torsin-1A
A
284Homo sapiensGene Names: TOR1A (DQ2, DYT1, TA, TORA)
EC: 3.6.4.-
Find proteins for O14656 (Homo sapiens)
Go to Gene View: TOR1A
Go to UniProtKB:  O14656
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Torsin-1A-interacting protein 2
B
239Homo sapiensGene Names: TOR1AIP2 (IFRG15, LULL1)
Find proteins for Q8NFQ8 (Homo sapiens)
Go to Gene View: TOR1AIP2
Go to UniProtKB:  Q8NFQ8
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
VHH domain BS-2
C
123N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A, B, C
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
MES
Query on MES

Download SDF File 
Download CCD File 
A
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 75.739α = 90.00
b = 90.659β = 90.00
c = 105.092γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
PHENIXrefinement
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationCountryGrant Number
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin DiseasesUnited StatesAR065484

Revision History 

  • Version 1.0: 2016-08-17
    Type: Initial release
  • Version 1.1: 2017-09-20
    Type: Author supporting evidence, Derived calculations