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THERMUS THERMOPHILUS 30S ribosomal subunit complexed with Era
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
Cryogen Name
ETHANE
Sample Vitrification Details
Rapid-freezing in liquid ethane
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
Reported Resolution (Å)
13.5
Resolution Method
Other Details
projection matching using spider package. The coordinates for only the alpha carbons in protein and phosphoruses in nucleic acid are present in the s ...
projection matching using spider package. The coordinates for only the alpha carbons in protein and phosphoruses in nucleic acid are present in the structure. The number of missing atoms was so much that remark 470 for the missing atoms list were removed.
Refinement Type
Symmetry Type
POINT
Point Symmetry
C1
Map-Model Fitting and Refinement
Id
1 (1FJF, 1EGA)
Refinement Space
REAL
Refinement Protocol
RIGID BODY FIT
Refinement Target
X-ray coordinates of the 30S ribosomal subunit and era were fitted into the
13.5 angstroms resolution CRYO-EM map of the T. Thermophilus 30S subunit-era
complex. The atomic structure of era was fitted as 3 rigid bodies, N-terminal
domain, C-terminal domain and C-terminal helix within the C-terminal domain.
the resultant era structure was then energy minimized. The X-ray coordinates of
T. Thermophilus 30S subunit was fitted as 4 rigid bodies, head, body, platform
and 16S rRNA 3' minor domains. Only the proteins and segments of RNA helices of
the 30S subunit that contact era in the era-30S complex are included here.
Overall B Value
Fitting Procedure
Details
METHOD--Cross-correlation coefficient based manual fitting in O REFINEMENT
PROTOCOL--MULTIPLE RIGID BODY