6CMY

Solution NMR Structure Determination of Mouse Melanoregulin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 125 
  • Conformers Submitted: 20 
  • Selection Criteria: 20 structures with lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The Structure of Melanoregulin Reveals a Role for Cholesterol Recognition in the Protein's Ability to Promote Dynein Function.

Rout, A.K.Wu, X.Starich, M.R.Strub, M.P.Hammer, J.A.Tjandra, N.

(2018) Structure 26: 1373

  • DOI: https://doi.org/10.1016/j.str.2018.07.009
  • Primary Citation of Related Structures:  
    6CMY

  • PubMed Abstract: 

    Melanoregulin (Mreg) is a small, highly charged, multiply palmitoylated protein present on the membrane of melanosomes. Mreg is implicated in the transfer of melanosomes from melanocytes to keratinocytes, and in promoting the microtubule minus end-directed transport of these organelles. The possible molecular function of Mreg was identified by solving its structure using nuclear magnetic resonance (NMR) spectroscopy. Mreg contains six α helices forming a fishhook-like fold in which positive and negative charges occupy opposite sides of the protein's surface and sandwich a putative, cholesterol recognition sequence (CRAC motif). Mreg containing a point mutation within its CRAC motif still targets to late endosomes/lysosomes, but no longer promotes their microtubule minus end-directed transport. Moreover, wild-type Mreg does not promote the microtubule minus end-directed transport of late endosomes/lysosomes in cells transiently depleted of cholesterol. Finally, reversing the charge of three clustered acidic residues partially inhibits Mreg's ability to drive these organelles to microtubule minus ends.


  • Organizational Affiliation

    Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Melanoregulin182Mus musculusMutation(s): 0 
Gene Names: MregDsuGm974Wdt2
UniProt & NIH Common Fund Data Resources
Find proteins for Q6NVG5 (Mus musculus)
Explore Q6NVG5 
Go to UniProtKB:  Q6NVG5
IMPC:  MGI:2151839
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6NVG5
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 125 
  • Conformers Submitted: 20 
  • Selection Criteria: 20 structures with lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-09-19
    Type: Initial release
  • Version 1.1: 2018-10-17
    Changes: Data collection, Database references
  • Version 1.2: 2023-06-14
    Changes: Data collection, Database references, Other
  • Version 1.3: 2024-05-15
    Changes: Data collection, Database references