6ND4

Conformational switches control early maturation of the eukaryotic small ribosomal subunit


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report



Literature

Conformational switches control early maturation of the eukaryotic small ribosomal subunit.

Hunziker, M.Barandun, J.Buzovetsky, O.Steckler, C.Molina, H.Klinge, S.

(2019) Elife 8

  • DOI: 10.7554/eLife.45185
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Eukaryotic ribosome biogenesis is initiated with the transcription of pre-ribosomal RNA at the 5' external transcribed spacer, which directs the early association of assembly factors but is absent from the mature ribosome. The subsequent co-transcrip ...

    Eukaryotic ribosome biogenesis is initiated with the transcription of pre-ribosomal RNA at the 5' external transcribed spacer, which directs the early association of assembly factors but is absent from the mature ribosome. The subsequent co-transcriptional association of ribosome assembly factors with pre-ribosomal RNA results in the formation of the small subunit processome. Here we show that stable rRNA domains of the small ribosomal subunit can independently recruit their own biogenesis factors in vivo. The final assembly and compaction of the small subunit processome requires the presence of the 5' external transcribed spacer RNA and all ribosomal RNA domains. Additionally, our cryo-electron microscopy structure of the earliest nucleolar pre-ribosomal assembly - the 5' external transcribed spacer ribonucleoprotein - provides a mechanism for how conformational changes in multi-protein complexes can be employed to regulate the accessibility of binding sites and therefore define the chronology of maturation events during early stages of ribosome assembly.


    Organizational Affiliation

    Laboratory of Protein and Nucleic Acid Chemistry, The Rockefeller University, New York, United States.



Macromolecules

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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Utp8
I
519Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
Utp9
K
183Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
Utp1
O
923Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for P25635 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P25635

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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
Utp6
P
421Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
Sof1
U
489Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for P33750 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
Utp7
W
554Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for P40055 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40055

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Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
Imp3
Z
183Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for P32899 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
Bud21
D
214Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for Q08492 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 24
MoleculeChainsSequence LengthOrganismDetails
Nop1.1
c, d
327Saccharomyces cerevisiae BY4741Mutation(s): 0 
EC: 2.1.1
Find proteins for P15646 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 28
MoleculeChainsSequence LengthOrganismDetails
Unidentified fragment
x
24Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
Utp4
N
727Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
Utp12
Q
917Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
Utp13
R
736Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
Utp18
S
594Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for P40362 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
Utp21
T
939Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for Q06078 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
Mpp10
A
593Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for P47083 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 22
MoleculeChainsSequence LengthOrganismDetails
Nop56
a
494Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 23
MoleculeChainsSequence LengthOrganismDetails
Nop58
b
503Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 25
MoleculeChainsSequence LengthOrganismDetails
Snu13
e, f
126Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for P39990 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 26
MoleculeChainsSequence LengthOrganismDetails
Rrp9
g
573Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for Q06506 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 27
MoleculeChainsSequence LengthOrganismDetails
Utp24
l
189Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for Q05498 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Utp17
H
853Saccharomyces cerevisiae BY4741Mutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.

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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Utp15
J
513Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for Q04305 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
Utp5
L
643Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for Q04177 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
Utp10
M
1769Saccharomyces cerevisiae BY4741Mutation(s): 0 
Find proteins for P42945 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P42945

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Entity ID: 1
MoleculeChainsLengthOrganism
5'ETS rRNA0700Saccharomyces cerevisiae BY4741

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Entity ID: 3
MoleculeChainsLengthOrganism
U3 snoRNA2146Saccharomyces cerevisiae BY4741
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Entity ID: 2
MoleculeChainsLengthOrganism
18S rRNA 5' domain start115Saccharomyces cerevisiae BY4741
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/Office of the DirectorUnited States1DP2GM123459
Swiss National Science FoundationSwitzerland155515

Revision History 

  • Version 1.0: 2019-06-19
    Type: Initial release
  • Version 1.1: 2019-06-26
    Changes: Data collection, Structure summary
  • Version 1.2: 2019-07-03
    Changes: Data collection, Database references
  • Version 2.0: 2019-12-18
    Changes: Other, Polymer sequence