5W0N

Structure of human TUT7 catalytic module (CM) in complex with UMPNPP and U2 RNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 

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, B, C403Homo 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
Expand
  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
UPU
Query on UPU

Download Ideal Coordinates CCD File 
F [auth A], L [auth B], Q [auth C][(2R,3S,4R,5R)-5-(2,4-DIOXO-3,4-DIHYDROPYRIMIDIN-1(2H)-YL)-3,4-DIHYDROXYTETRAHYDROFURAN-2-YL]METHYL (2R,3S,4R,5R)-5-(2,4-DIOXO-3,4-DIHYDROPYRIMIDIN-1(2H)-YL)-4-HYDROXY-2-(HYDROXYMETHYL)TETRAHYDROFURAN-3-YL HYDROGEN (S)-PHOSPHATE
C18 H23 N4 O14 P
KXSPLNAXPMVUEC-NCOIDOBVSA-N
 Ligand Interaction
2KH
Query on 2KH

Download Ideal Coordinates CCD File 
E [auth A], K [auth B], P [auth C]5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]uridine
C9 H16 N3 O14 P3
OZIBFYOFLVBDIY-XVFCMESISA-N
 Ligand Interaction
IOD
Query on IOD

Download Ideal Coordinates CCD File 
H [auth A], N [auth B], R [auth C]IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
I [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
G [auth A], M [auth B]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
D [auth A], J [auth B], O [auth C]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 135.972α = 90
b = 135.972β = 90
c = 181.574γ = 120
Software Package:
Software NamePurpose
Aimlessdata scaling
PHENIXrefinement
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