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- EMDB-5419: Sulfolobus solfataricus methylation-guide sRNP -

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Basic information

Database: EMDB / ID: 5419
TitleSulfolobus solfataricus methylation-guide sRNP
Map dataProjection matching single particle reconstruction of Sulfolobus solfataricus methylation-guide sRNP, 26 Angstrom resolution
SampleSulfolobus solfataricus methylation-guide sRNP:
Keywordsarchaea / box C/D sRNP / single particle EM / rRNA modification / RNA-protein complex / non-coding RNA
SourceSulfolobus solfataricus (acidophilic)
Methodsingle particle reconstruction / negative staining / 26 Å resolution
AuthorsBower-Phipps KR / Taylor DW / Wang HW / Baserga SJ
CitationJournal: RNA / Year: 2012
Title: The box C/D sRNP dimeric architecture is conserved across domain Archaea.
Authors: Kathleen R Bower-Phipps / David W Taylor / Hong-Wei Wang / Susan J Baserga
DateDeposition: May 8, 2012 / Header (metadata) release: Jun 5, 2012 / Map release: Jul 9, 2012 / Last update: Jul 9, 2012

Structure visualization

  • Surface view with section colored by density value
  • Surface level: 3
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by radius
  • Surface level: 3
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
Supplemental images

Downloads & links


Fileemd_5419.map.gz (map file in CCP4 format, 8193 KB)
Projections & slices

Image control

AxesZ (Sec.)Y (Row.)X (Col.)
128 pix
2.7 Å/pix.
= 345.6 Å
128 pix
2.7 Å/pix.
= 345.6 Å
128 pix
2.7 Å/pix.
= 345.6 Å



Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 2.7 Å
Contour Level:3 (by author), 3 (movie #1):
Minimum - Maximum-4.397295 - 14.74745083
Average (Standard dev.)0E-8 (0.9999997)


Space Group Number1
Map Geometry
Axis orderXYZ
CellA=B=C: 345.6 Å
α=β=γ: 90 deg.

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z2.72.72.7
M x/y/z128128128
origin x/y/z0.0000.0000.000
length x/y/z345.600345.600345.600
start NX/NY/NZ-62-62-62
MAP C/R/S123
start NC/NR/NS000
D min/max/mean-4.39714.747-0.000

Supplemental data

Sample components

Entire Sulfolobus solfataricus methylation-guide sRNP

EntireName: Sulfolobus solfataricus methylation-guide sRNP / Number of components: 1
Oligomeric State: Four copies of each box C/D core protein could be docked in this map.
MassTheoretical: 371 kDa

Component #1: protein, ribonucleoprotein

ProteinName: ribonucleoproteinNucleoprotein / a.k.a: box C/D sRNP / Recombinant expression: Yes
MassTheoretical: 371 kDa
SourceSpecies: Sulfolobus solfataricus (acidophilic)

Experimental details

Sample preparation

SpecimenSpecimen state: particle / Method: negative staining
Sample solutionBuffer solution: 20mM HEPES, 500mM NaCl, 1.5mM MgCl2 / pH: 7.5
Staining2% uranyl formate
VitrificationInstrument: NONE / Cryogen name: NONE

Electron microscopy imaging

ImagingMicroscope: FEI TECNAI 12 / Date: Jun 1, 2011 / Details: low-dose conditions
Electron gunElectron source: LAB6 / Accelerating voltage: 120 kV / Electron dose: 20 e/Å2 / Illumination mode: FLOOD BEAM
LensMagnification: 42000 X (nominal) / Imaging mode: BRIGHT FIELD
Specimen HolderModel: SIDE ENTRY, EUCENTRIC
CameraDetector: GATAN ULTRASCAN 4000 (4k x 4k)

Image processing

ProcessingMethod: single particle reconstruction / Number of projections: 6149 / Applied symmetry: C1 (asymmetric)
3D reconstructionAlgorithm: Projection matching / Software: SPIDER / Resolution: 26 Å / Resolution method: FSC 0.5

Atomic model buiding

Modeling #1Software: Chimera, Situs / Refinement space: REAL
Input PDB model: 3ID5

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