6BM0

Cryo-EM structure of human CPSF-160-WDR33 complex at 3.8 A resolution


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Molecular basis for the recognition of the human AAUAAA polyadenylation signal.

Sun, Y.Zhang, Y.Hamilton, K.Manley, J.L.Shi, Y.Walz, T.Tong, L.

(2018) Proc Natl Acad Sci U S A 115: E1419-E1428

  • DOI: 10.1073/pnas.1718723115
  • Primary Citation of Related Structures:  
    6BLY, 6BM0, 6DNH

  • PubMed Abstract: 
  • Nearly all eukaryotic messenger RNA precursors must undergo cleavage and polyadenylation at their 3'-end for maturation. A crucial step in this process is the recognition of the AAUAAA polyadenylation signal (PAS), and the molecular mechanism of this recognition has been a long-standing problem ...

    Nearly all eukaryotic messenger RNA precursors must undergo cleavage and polyadenylation at their 3'-end for maturation. A crucial step in this process is the recognition of the AAUAAA polyadenylation signal (PAS), and the molecular mechanism of this recognition has been a long-standing problem. Here, we report the cryo-electron microscopy structure of a quaternary complex of human CPSF-160, WDR33, CPSF-30, and an AAUAAA RNA at 3.4-Å resolution. Strikingly, the AAUAAA PAS assumes an unusual conformation that allows this short motif to be bound directly by both CPSF-30 and WDR33. The A1 and A2 bases are recognized specifically by zinc finger 2 (ZF2) of CPSF-30 and the A4 and A5 bases by ZF3. Interestingly, the U3 and A6 bases form an intramolecular Hoogsteen base pair and directly contact WDR33. CPSF-160 functions as an essential scaffold and preorganizes CPSF-30 and WDR33 for high-affinity binding to AAUAAA. Our findings provide an elegant molecular explanation for how PAS sequences are recognized for mRNA 3'-end formation.


    Organizational Affiliation

    Department of Biological Sciences, Columbia University, New York, NY 10027; jlm2@columbia.edu twalz@mail.rockefeller.edu ltong@columbia.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cleavage and polyadenylation specificity factor subunit 1A1443Homo sapiensMutation(s): 0 
Gene Names: CPSF1CPSF160
UniProt & NIH Common Fund Data Resources
Find proteins for Q10570 (Homo sapiens)
Explore Q10570 
Go to UniProtKB:  Q10570
PHAROS:  Q10570
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
pre-mRNA 3' end processing protein WDR33B587Homo sapiensMutation(s): 0 
Gene Names: WDR33WDC146
UniProt & NIH Common Fund Data Resources
Find proteins for Q9C0J8 (Homo sapiens)
Explore Q9C0J8 
Go to UniProtKB:  Q9C0J8
PHAROS:  Q9C0J8
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 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/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR35GM118093

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-22
    Type: Initial release
  • Version 1.1: 2017-12-06
    Changes: Author supporting evidence
  • Version 1.2: 2017-12-20
    Changes: Database references
  • Version 1.3: 2018-02-28
    Changes: Database references
  • Version 1.4: 2020-01-01
    Changes: Author supporting evidence