6K2K

Solution structure of MUL1-RING domain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 250 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Solution structure of MUL1-RING domain and its interaction with p53 transactivation domain.

Lee, M.S.Lee, S.O.Lee, M.K.Yi, G.S.Lee, C.K.Ryu, K.S.Chi, S.W.

(2019) Biochem Biophys Res Commun 516: 533-539

  • DOI: 10.1016/j.bbrc.2019.06.101
  • Primary Citation of Related Structures:  
    6K2K

  • PubMed Abstract: 
  • Mitochondrial E3 ubiquitin ligase 1 (MUL1) is a multifunctional mitochondrial protein involved in various biological processes such as mitochondrial dynamics, cell growth, apoptosis, and mitophagy. MUL1 mediates the ubiquitylation of mitochondrial p53 for proteasomal degradation ...

    Mitochondrial E3 ubiquitin ligase 1 (MUL1) is a multifunctional mitochondrial protein involved in various biological processes such as mitochondrial dynamics, cell growth, apoptosis, and mitophagy. MUL1 mediates the ubiquitylation of mitochondrial p53 for proteasomal degradation. Although the interaction of MUL1-RING domain with its substrate, p53, is a unique mechanism in RING-mediated ubiquitylation, the molecular basis of this process remains unknown. In this study, we determined the solution structure of the MUL1-RING domain and characterized its interaction with the p53 transactivation domain (p53-TAD) by nuclear magnetic resonance (NMR) spectroscopy. The overall structure of the MUL1-RING domain is similar to those of RING domains of other E3 ubiquitinases. The MUL1-RING domain adopts a ββαβ fold with three anti-parallel β-strands and one α-helix, containing a canonical cross-brace motif for the ligation of two zinc ions. Through NMR chemical shift perturbation experiments, we determined the p53-TAD-binding site in the MUL1-RING domain and showed that the MUL1-RING domain interacts mainly with the p53-TAD2 subdomain composed of residues 39-57. Taken together, our results provide a molecular basis for the novel recognition mechanism of the p53-TAD substrate by the MUL1-RING domain.


    Organizational Affiliation

    Disease Target Structure Research Center, Division of Biomedical Research, KRIBB, Daejeon 34141, Republic of Korea; Department of Proteome Structural Biology, KRIBB School of Bioscience, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea. Electronic address: swchi@kribb.re.kr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mitochondrial ubiquitin ligase activator of NFKB 1A57Homo sapiensMutation(s): 0 
Gene Names: MUL1C1orf166GIDEMAPLMULANRNF218
EC: 2.3.2.27
UniProt & NIH Common Fund Data Resources
Find proteins for Q969V5 (Homo sapiens)
Explore Q969V5 
Go to UniProtKB:  Q969V5
PHAROS:  Q969V5
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
B [auth A], C [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 250 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 6K2K Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-10
    Type: Initial release
  • Version 1.1: 2019-07-31
    Changes: Data collection, Database references