6IW6

Crystal structure of the Lin28-interacting module of human TUT4

  • Classification: TRANSFERASE
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2018-12-04 Released: 2019-04-24 
  • Deposition Author(s): Yamashita, S., Tomita, K.
  • Funding Organization(s): Japan Society for the Promotion of Science, Ministry of Education, Culture, Sports, Science and Technology (Japan)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of the Lin28-interacting module of human terminal uridylyltransferase that regulates let-7 expression.

Yamashita, S.Nagaike, T.Tomita, K.

(2019) Nat Commun 10: 1960-1960

  • DOI: 10.1038/s41467-019-09966-5
  • Primary Citation of Related Structures:  
    6IW6

  • PubMed Abstract: 
  • Lin28-dependent oligo-uridylylation of precursor let-7 (pre-let-7) by terminal uridylyltransferase 4/7 (TUT4/7) represses let-7 expression by blocking Dicer processing, and regulates cell differentiation and proliferation. The interaction between the Lin28:pre-let-7 complex and the N-terminal Lin28-interacting module (LIM) of TUT4/7 is required for pre-let-7 oligo-uridylylation by the C-terminal catalytic module (CM) of TUT4/7 ...

    Lin28-dependent oligo-uridylylation of precursor let-7 (pre-let-7) by terminal uridylyltransferase 4/7 (TUT4/7) represses let-7 expression by blocking Dicer processing, and regulates cell differentiation and proliferation. The interaction between the Lin28:pre-let-7 complex and the N-terminal Lin28-interacting module (LIM) of TUT4/7 is required for pre-let-7 oligo-uridylylation by the C-terminal catalytic module (CM) of TUT4/7. Here, we report crystallographic and biochemical analyses of the LIM of human TUT4. The LIM consists of the N-terminal Cys2His2-type zinc finger (ZF) and the non-catalytic nucleotidyltransferase domain (nc-NTD). The ZF of LIM adopts a distinct structural domain, and its structure is homologous to those of double-stranded RNA binding zinc fingers. The interaction between the ZF and pre-let-7 stabilizes the Lin28:pre-let-7:TUT4 ternary complex, and enhances the oligo-uridylylation reaction by the CM. Thus, the ZF in LIM and the zinc-knuckle in the CM, which interacts with the oligo-uridylylated tail, together facilitate Lin28-dependent pre-let-7 oligo-uridylylation.


    Organizational Affiliation

    Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, 277-8562, Japan. kozo_tomita@cbms.k.u-tokyo.ac.jp.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Terminal uridylyltransferase 4,Terminal uridylyltransferase 4A, B448Homo sapiensMutation(s): 0 
Gene Names: TUT4KIAA0191ZCCHC11
EC: 2.7.7.52
UniProt & NIH Common Fund Data Resources
Find proteins for Q5TAX3 (Homo sapiens)
Explore Q5TAX3 
Go to UniProtKB:  Q5TAX3
PHAROS:  Q5TAX3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 
  • Space Group: I 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 113.27α = 90
b = 127.83β = 90
c = 168.8γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XSCALEdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Japan Society for the Promotion of ScienceJapanLS135
Japan Society for the Promotion of ScienceJapan18H03980
Ministry of Education, Culture, Sports, Science and Technology (Japan)Japan26113002

Revision History  (Full details and data files)

  • Version 1.0: 2019-04-24
    Type: Initial release
  • Version 1.1: 2019-05-08
    Changes: Data collection, Database references
  • Version 1.2: 2019-05-15
    Changes: Data collection, Database references