1I84

CRYO-EM STRUCTURE OF THE HEAVY MEROMYOSIN SUBFRAGMENT OF CHICKEN GIZZARD SMOOTH MUSCLE MYOSIN WITH REGULATORY LIGHT CHAIN IN THE DEPHOSPHORYLATED STATE. ONLY C ALPHAS PROVIDED FOR REGULATORY LIGHT CHAIN. ONLY BACKBONE ATOMS PROVIDED FOR S2 FRAGMENT.


ELECTRON CRYSTALLOGRAPHY Experimental Data


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Lipid Monolayer
pH 7.5
Temperature 277.0
Details MgCl, sodium phosphate, ATP, EGTA, PEG 6000, pH 7.5, Lipid monolayer, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 133 α = 90
b = 304 β = 90
c = 200 γ = 91.5
Symmetry
Space Group P 1 1 2

Diffraction

Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 20.0 -- -- -- -- -- -- -- -- -- -- -- --
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 16580
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

EM Sample
Sample Vitrification Details Specimens were frozen in liquid ethane using a drop freezing apparatus.
Sample Aggregation State 2D ARRAY
Sample Reconstruction Method CRYSTALLOGRAPHY
Name of Sample HEAVY MEROMYOSIN SUBFRAGMENT OF CHICKEN GIZZARD SMOOTH MUSCLE MYOSIN WITH REGULATORY LIGHT CHAIN IN THE DEPHOSPHORYLATED STATE
EM Data Acquisition
Date of Experiment 1999-07-01
Temperature (Kelvin) 93.0
Microscope Model FEI/PHILIPS CM300FEG/T
Detector Type KODAK SO-163 FILM
Minimum Defocus (nm) --
Maximum Defocus (nm) --
Minimum Tilt Angle (degrees) --
Maximum Tilt Angle (degrees) --
Nominal CS --
Imaging Mode BRIGHT FIELD
Electron Dose (electrons per Å**-2) 5.0
Illumination Mode FLOOD BEAM
Nominal Magnification 24000
Calibrated Magnification --
Source --
Acceleration Voltage (kV) 300
Imaging Details --
3D Reconstruction
Software Package(s) --
Reconstruction Method(s) --
EM Image Reconstruction Statistics
Number of Particles --
Other Details --
Effective Resolution 20.0
EM Map-Model Fitting and Refinement
Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Fitting Software
REAL OTHER VISUAL AGREEMENT -- -- --