4GNK

Crystal structure of Galphaq in complex with full-length human PLCbeta3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Full-length G alpha (q)-phospholipase C-beta 3 structure reveals interfaces of the C-terminal coiled-coil domain.

Lyon, A.M.Dutta, S.Boguth, C.A.Skiniotis, G.Tesmer, J.J.

(2013) Nat Struct Mol Biol 20: 355-362

  • DOI: 10.1038/nsmb.2497
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Phospholipase C-β (PLCβ) is directly activated by Gαq, but the molecular basis for how its distal C-terminal domain (CTD) contributes to maximal activity is poorly understood. Herein we present both the crystal structure and cryo-EM three-dimensional ...

    Phospholipase C-β (PLCβ) is directly activated by Gαq, but the molecular basis for how its distal C-terminal domain (CTD) contributes to maximal activity is poorly understood. Herein we present both the crystal structure and cryo-EM three-dimensional reconstructions of human full-length PLCβ3 in complex with mouse Gαq. The distal CTD forms an extended monomeric helical bundle consisting of three antiparallel segments with structural similarity to membrane-binding bin-amphiphysin-Rvs (BAR) domains. Sequence conservation of the distal CTD suggests putative membrane and protein interaction sites, the latter of which bind the N-terminal helix of Gαq in both the crystal structure and cryo-EM reconstructions. Functional analysis suggests that the distal CTD has roles in membrane targeting and in optimizing the orientation of the catalytic core at the membrane for maximal rates of lipid hydrolysis.


    Organizational Affiliation

    Life Sciences Institute, University of Michigan, Ann Arbor, Michigan, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(q) subunit alphaA, C353Mus musculusMutation(s): 0 
Gene Names: g alpha qGnaq
Find proteins for P21279 (Mus musculus)
Explore P21279 
Go to UniProtKB:  P21279
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-3B, D1235Homo sapiensMutation(s): 0 
Gene Names: phospholipase c beta 3PLCB3
EC: 3.1.4.11
Find proteins for Q01970 (Homo sapiens)
Explore Q01970 
Go to UniProtKB:  Q01970
NIH Common Fund Data Resources
PHAROS  Q01970
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-3E259Homo sapiensMutation(s): 0 
Gene Names: phospholipase c beta 3PLCB3
EC: 3.1.4.11
Find proteins for Q01970 (Homo sapiens)
Explore Q01970 
Go to UniProtKB:  Q01970
NIH Common Fund Data Resources
PHAROS  Q01970
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

Download CCD File 
A, C
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
ALF
Query on ALF

Download CCD File 
A, C
TETRAFLUOROALUMINATE ION
Al F4
UYOMQIYKOOHAMK-UHFFFAOYSA-J
 Ligand Interaction
CA
Query on CA

Download CCD File 
B, D
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
A, C
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.216 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.423α = 90
b = 188.845β = 90
c = 293.857γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-02-06
    Type: Initial release
  • Version 1.1: 2013-09-04
    Changes: Database references