7C79

Cryo-EM structure of yeast Ribonuclease MRP


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.2 of the entry. See complete history


Literature

Structural insight into precursor ribosomal RNA processing by ribonuclease MRP.

Lan, P.Zhou, B.Tan, M.Li, S.Cao, M.Wu, J.Lei, M.

(2020) Science 369: 656-663

  • DOI: https://doi.org/10.1126/science.abc0149
  • Primary Citation of Related Structures:  
    7C79, 7C7A

  • PubMed Abstract: 

    Ribonuclease (RNase) MRP is a conserved eukaryotic ribonucleoprotein complex that plays essential roles in precursor ribosomal RNA (pre-rRNA) processing and cell cycle regulation. In contrast to RNase P, which selectively cleaves transfer RNA-like substrates, it has remained a mystery how RNase MRP recognizes its diverse substrates. To address this question, we determined cryo-electron microscopy structures of Saccharomyces cerevisiae RNase MRP alone and in complex with a fragment of pre-rRNA. These structures and the results of biochemical studies reveal that coevolution of both protein and RNA subunits has transformed RNase MRP into a distinct ribonuclease that processes single-stranded RNAs by recognizing a short, loosely defined consensus sequence. This broad substrate specificity suggests that RNase MRP may have myriad yet unrecognized substrates that could play important roles in various cellular contexts.


  • Organizational Affiliation

    State Key Laboratory of Oncogenes and Related Genes, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.


Macromolecules

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonucleases P/MRP protein subunit POP1875Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.1.26.5
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonucleases P/MRP protein subunit POP3195Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
RNases MRP/P 32.9 kDa subunit279Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonuclease P/MRP protein subunit POP5173Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.1.26.5
UniProt
Find proteins for P28005 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonucleases P/MRP protein subunit POP6158Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.1.26.5
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonucleases P/MRP protein subunit POP7140Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.1.26.5
UniProt
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonucleases P/MRP protein subunit POP8133Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.1.26.5
UniProt
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonuclease P/MRP protein subunit RPP1
I, J
293Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.1.26.5
UniProt
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonuclease MRP protein subunit SNM1198Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
Ribonuclease MRP protein subunit RMP1201Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
Find proteins for Q12530 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 1
MoleculeChains LengthOrganismImage
Ribonuclease MRP RNA subunit NME1340Saccharomyces cerevisiae S288C
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-08
    Type: Initial release
  • Version 1.1: 2020-08-26
    Changes: Database references
  • Version 1.2: 2024-03-27
    Changes: Data collection, Database references