6H9M

Coiled-coil domain-containing protein 90B residues 43-125 from Homo sapiens fused to a GCN4 adaptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.232 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Characterization of MCU-Binding Proteins MCUR1 and CCDC90B - Representatives of a Protein Family Conserved in Prokaryotes and Eukaryotic Organelles.

Adlakha, J.Karamichali, I.Sangwallek, J.Deiss, S.Bar, K.Coles, M.Hartmann, M.D.Lupas, A.N.Hernandez Alvarez, B.

(2019) Structure 27: 464-475.e6

  • DOI: https://doi.org/10.1016/j.str.2018.11.004
  • Primary Citation of Related Structures:  
    6H9L, 6H9M

  • PubMed Abstract: 
  • Membrane-bound coiled-coil proteins are important mediators of signaling, fusion, and scaffolding. Here, we delineate a heterogeneous group of trimeric membrane-anchored proteins in prokaryotes and eukaryotic organelles with a characteristic head-neck-stalk-anchor architecture, in which a membrane-anchored coiled-coil stalk projects an N-terminal head domain via a β-layer neck ...

    Membrane-bound coiled-coil proteins are important mediators of signaling, fusion, and scaffolding. Here, we delineate a heterogeneous group of trimeric membrane-anchored proteins in prokaryotes and eukaryotic organelles with a characteristic head-neck-stalk-anchor architecture, in which a membrane-anchored coiled-coil stalk projects an N-terminal head domain via a β-layer neck. Based on sequence analysis, we identify different types of head domains and determine crystal structures of two representatives, the archaeal protein Kcr-0859 and the human CCDC90B, which possesses the most widespread head type. Using mitochondrial calcium uniporter regulator 1 (MCUR1), the functionally characterized paralog of CCDC90B, we study the role of individual domains, and find that the head interacts directly with the mitochondrial calcium uniporter (MCU) and is destabilized upon Ca 2+ binding. Our data provide structural details of a class of membrane-bound coiled-coil proteins and identify the conserved head domain of the most widespread type as a mediator of their function.


    Organizational Affiliation

    Department of Protein Evolution, Max Planck Institute for Developmental Biology, Max-Planck-Ring 5, 72076 Tübingen, Germany. Electronic address: birte.hernandez@tuebingen.mpg.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Coiled-coil domain-containing protein 90B, mitochondrial,General control protein GCN4
A, B, C
118Homo sapiensSaccharomyces cerevisiae S288C
This entity is chimeric
Mutation(s): 2 
Gene Names: CCDC90BCUA003MDS011MDS025GCN4AAS3ARG9YEL009C
UniProt & NIH Common Fund Data Resources
Find proteins for Q9GZT6 (Homo sapiens)
Explore Q9GZT6 
Go to UniProtKB:  Q9GZT6
PHAROS:  Q9GZT6
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P03069 
Go to UniProtKB:  P03069
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsQ9GZT6P03069
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.232 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.009α = 90
b = 298.178β = 90
c = 29.297γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-13
    Type: Initial release
  • Version 1.1: 2019-03-13
    Changes: Data collection, Database references