Find PDB structures and Computed Structure Models (CSM) by combining queries from tools in this suite: Attribute Search, Sequence Similarity, Sequence Motif, 3D Similarity, and 3D Motif with 'AND' logic.
HUMAN BETA CARDIAC HEAVY MEROMYOSIN INTERACTING-HEADS MOTIF OBTAINED BY HOMOLOGY MODELING (USING SWISS-MODEL) OF HUMAN SEQUENCE FROM APHONOPELMA HOMOLOGY MODEL (PDB-3JBH), RIGIDLY FITTED TO HUMAN BETA-CARDIAC NEGATIVELY STAINED THICK FILAMENT 3D-RECONSTRUCTION (EMD-2240)
PLUNGING IN A LIQUID ETHANE COOLED BY LIQUID NITROGEN. BLOTTING WAS PERFORMED FROM ONE SIDE OF THE GRID TILL A THIN SAMPLE FILM ON IT USING WHATMAN NO ...
PLUNGING IN A LIQUID ETHANE COOLED BY LIQUID NITROGEN. BLOTTING WAS PERFORMED FROM ONE SIDE OF THE GRID TILL A THIN SAMPLE FILM ON IT USING WHATMAN NO. 42 FILTER PAPER, THEN THE GRID WAS IMMEDIATELY PLUNGED UNDER GRAVITY INTO LIQUID ETHANE COOLED BY LIQUID NITROGEN. GRIDS WERE STORED UNDER LIQUID NITROGEN.
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
10700
Reported Resolution (Å)
20
Resolution Method
FSC 0.5 CUT-OFF
Other Details
For projection matching, giving a total of 4,095 projections (13 tilted projections plus-minus 12 deg. every 2deg., 45 reference rotated projections ( ...
For projection matching, giving a total of 4,095 projections (13 tilted projections plus-minus 12 deg. every 2deg., 45 reference rotated projections (0-90 degrees, 2deg. rotation angle), and 7 image axial shifts of 2.2 nm. The resulting 3D-map combines about 10,700 out of 15,504 filament segments, a yield of 69 percent of included segments. There are 4 helices of myosin heads, rotated 30 degrees, every 145 Angstroms. The filament segments were selected based on visual judgement of good helical order.
Refinement Type
Symmetry Type
POINT
Point Symmetry
C4
Map-Model Fitting and Refinement
Id
1 (3JBH, 3JBH, 3JBH, 3JBH, 3JBH, 3JBH)
Refinement Space
REAL
Refinement Protocol
RIGID BODY FIT
Refinement Target
CORRELATION COEFFICIENT
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector Type
KODAK SO-163 FILM
Electron Dose (electrons/Å**2)
9
Imaging Experiment
1
Date of Experiment
Temperature (Kelvin)
Microscope Model
FEI/PHILIPS CM120T
Minimum Defocus (nm)
1950
Maximum Defocus (nm)
1950
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
2
Imaging Mode
BRIGHT FIELD
Specimen Holder Model
GATAN LIQUID NITROGEN
Nominal Magnification
35000
Calibrated Magnification
35000
Source
LAB6
Acceleration Voltage (kV)
120
Imaging Details
Holey carbon grids Cryopreserved in Liquid ethane were observed in a Philips CM120 electron microscope under low dose conditions. Only filaments on thin carbon over holes were photographed
EM Software
Task
Software Package
Version
PARTICLE SELECTION
EMAN
2
MODEL FITTING
UCSF Chimera
10
RECONSTRUCTION
ITERATIVE HELICAL REAL SPACE RECONSTRUCTION (EGELMAN, 2000)
SPIDER 14
Image Processing
CTF Correction Type
CTF Correction Details
Number of Particles Selected
Particle Selection Details
NONE
15504
A total of 15,504 segments, each 62 nm long, with an overlap of 55.8 nm, and containing aprox. 40,000 unique pairs of interacting myosin heads went into the reconstruction.