5W0O

Structure of human TUT7 catalytic module (CM) in complex with dsRNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.49 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.208 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Multi-domain utilization by TUT4 and TUT7 in control of let-7 biogenesis.

Faehnle, C.R.Walleshauser, J.Joshua-Tor, L.

(2017) Nat Struct Mol Biol 24: 658-665

  • DOI: 10.1038/nsmb.3428
  • Primary Citation of Related Structures:  
    5W0M, 5W0B, 5W0O, 5W0N

  • PubMed Abstract: 
  • The uridyl transferases TUT4 and TUT7 (collectively called TUT4(7)) switch between two modes of activity, either promoting expression of let-7 microRNA (monoU) or marking it for degradation (oligoU). Lin28 modulates the switch via recruitment of TUT4(7) to the precursor pre-let-7 in stem cells and human cancers ...

    The uridyl transferases TUT4 and TUT7 (collectively called TUT4(7)) switch between two modes of activity, either promoting expression of let-7 microRNA (monoU) or marking it for degradation (oligoU). Lin28 modulates the switch via recruitment of TUT4(7) to the precursor pre-let-7 in stem cells and human cancers. We found that TUT4(7) utilize two multidomain functional modules during the switch from monoU to oligoU. The catalytic module (CM) is essential for both activities, while the Lin28-interacting module (LIM) is indispensable for oligoU. A TUT7 CM structure trapped in the monoU activity staterevealed a duplex-RNA-binding pocket that orients group II pre-let-7 hairpins to favor monoU addition. Conversely, the switch to oligoU requires the ZK domain of Lin28 to drive the formation of a stable ternary complex between pre-let-7 and the inactive LIM. Finally, ZK2 of TUT4(7) aids oligoU addition by engaging the growing oligoU tail through uracil-specific interactions.


    Organizational Affiliation

    Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Terminal uridylyltransferase 7A, B389Homo sapiensMutation(s): 0 
Gene Names: ZCCHC6HS2KIAA1711TUT7
EC: 2.7.7.52
Find proteins for Q5VYS8 (Homo sapiens)
Explore Q5VYS8 
Go to UniProtKB:  Q5VYS8
NIH Common Fund Data Resources
PHAROS:  Q5VYS8
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 2
    MoleculeChainsLengthOrganismImage
    double-stranded RNAC, D15synthetic construct
    Small Molecules
    Ligands 1 Unique
    IDChainsName / Formula / InChI Key2D Diagram3D Interactions
    UTP
    Query on UTP

    Download Ideal Coordinates CCD File 
    E [auth A], F [auth B]URIDINE 5'-TRIPHOSPHATE
    C9 H15 N2 O15 P3
    PGAVKCOVUIYSFO-XVFCMESISA-N
     Ligand Interaction
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 2.49 Å
    • R-Value Free: 0.254 
    • R-Value Work: 0.205 
    • R-Value Observed: 0.208 
    • Space Group: P 21 21 21
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 66.825α = 90
    b = 80.851β = 90
    c = 181.83γ = 90
    Software Package:
    Software NamePurpose
    PHENIXrefinement
    SCALAdata scaling
    PDB_EXTRACTdata extraction
    XDSdata reduction
    PHASERphasing

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    Revision History  (Full details and data files)

    • Version 1.0: 2017-06-28
      Type: Initial release
    • Version 1.1: 2017-07-19
      Changes: Database references
    • Version 1.2: 2017-08-16
      Changes: Database references