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Title:
Cryo EM map of the Gaalphaq-PLCbeta3 complex.
Authors:
Dutta S, Lyon AM, Tesmer JJG, Skiniotis G
Sample:
Cryo EM reconstruction of the Galphaq-PLCbeta3 complex.
Method:
Single particle reconstruction (21 angstroms resolution)
Summary
Experimental details
Visualization
Map information
Downloads
Sample
Sample name:
Cryo EM reconstruction of the Galphaq-PLCbeta3 complex.
Oligomeric state:
Dimer
Theoretical molecular weight of the sample:
1.8
Components:
ID
Type
Name
Exp. MW (MDa)
Oligomeric details
Recombinant expression
Synthetic
Organism
UniProt identifier
GO identifier
InterPro identifier
Virus identifier
Details
1
protein
G alpha q
0.044
monomer
true
Mus musculus
GO:0007202
IPR000654
2
protein
phospholipase C beta 3
0.139
monomer
true
Homo sapiens
GO:0007186
IPR016280
Experiment
Specimen state:
Particle
Specimen preparation:
pH
Specimen conc.
Details
Staining
Specimen support details
8.0
1 mg/mL
20 mM HEPES pH 8, 200 mM NaCl, 2 mM DTT, 0.9 mM CaCl2, 50 microM GDP, 30 microM AlCl3, 10 mM NaF, 5 mM MgCl2
glow-discharged Quantifoil R2/200 mesh grid
Vitrification:
Cryogen name
Humidity
Temp.
Instr.
Method
Time resolved
Details
ETHANE
100%
K
FEI VITROBOT MARK IV
Blot for 2 seconds at 3 microliter sample.
ms
Vitrification carried out in liquid nitrogen atmosphere.
Imaging:
Microscope
Voltage
Illumination mode
Imaging mode
Cs
Defocus min.
Defocus max.
Nominal mag.
Calibrated mag.
Electron source
Detector
Detector distance
Astigmatism
FEI TECNAI F20
120 kV
FLOOD BEAM
BRIGHT FIELD
2 mm
1500 nm
3500 nm
50000
71138
FIELD EMISSION GUN
US4000 CCD
mm
Objective lens astigmatism was corrected at 135,000 times magnification.
Specimen holder
Holder model
Tilt min.
Tilt max.
Energy filter
Energy window
Temp.
Temp. min.
Temp. max.
Beam tilt
Electron dose
Other details
Date
Used two holders.
OTHER
°
°
eV
89 K
89 K
95 K
mrad
20 e/Å
2
20-OCT-2011
Processing
Protocol:
cross-common lines
Software:
EMAN1
CTF correction:
each particle
Number of particles:
12673
Resolution by author:
21 Å
Resolution method:
FSC at 0.5 cut-off
Scanned images:
Num. images
Sampling size
OD range
Quant. bit number
Other details
Scanner
350
μm/pixel
Fitting:
PDB
Protocol
Target crit.
Software
B value
Fitting space
PDB chain
Details
4GNK
REAL