5J1S

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.144 

wwPDB Validation   3D Report Full Report


This is version 1.2 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, 5J1S

  • 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 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) ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Torsin-1AA284Homo sapiensMutation(s): 1 
Gene Names: TOR1ADQ2DYT1TATORA
EC: 3.6.4
Find proteins for O14656 (Homo sapiens)
Explore O14656 
Go to UniProtKB:  O14656
NIH Common Fund Data Resources
PHAROS:  O14656
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Torsin-1A-interacting protein 2B239Homo sapiensMutation(s): 0 
Gene Names: TOR1AIP2IFRG15LULL1
Find proteins for Q8NFQ8 (Homo sapiens)
Explore Q8NFQ8 
Go to UniProtKB:  Q8NFQ8
NIH Common Fund Data Resources
PHAROS:  Q8NFQ8
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
VHH domain BS-2C123Vicugna pacosMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download Ideal Coordinates CCD File 
D [auth A]ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
MES
Query on MES

Download Ideal Coordinates CCD File 
G [auth A]2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
F [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
E [auth A], H [auth B], I [auth C]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.144 
  • Space Group: P 21 21 21
  • Diffraction Data DOI: 10.15785/SBGRID/524 SBGrid
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.739α = 90
b = 90.659β = 90
c = 105.092γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIH/NIAMS)United StatesAR065484

Revision History  (Full details and data files)

  • Version 1.0: 2016-08-17
    Type: Initial release
  • Version 1.1: 2017-09-20
    Changes: Author supporting evidence, Derived calculations
  • Version 1.2: 2019-12-11
    Changes: Author supporting evidence