6UP6

Endophilin B1 helical scaffold


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.00 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Amphipathic Motifs Regulate N-BAR Protein Endophilin B1 Auto-inhibition and Drive Membrane Remodeling.

Bhatt, V.S.Ashley, R.Sundborger-Lunna, A.

(2021) Structure 29: 61

  • DOI: 10.1016/j.str.2020.09.012
  • Primary Citation of Related Structures:  
    6UPN, 6UP6

  • PubMed Abstract: 
  • Membrane remodeling is a common theme in a variety of cellular processes. Here, we investigated membrane remodeling N-BAR protein endophilin B1, a critical player in diverse intracellular trafficking events, including mitochondrial and Golgi fission, and apoptosis ...

    Membrane remodeling is a common theme in a variety of cellular processes. Here, we investigated membrane remodeling N-BAR protein endophilin B1, a critical player in diverse intracellular trafficking events, including mitochondrial and Golgi fission, and apoptosis. We find that endophilin B1 assembles into helical scaffolds on membranes, and that both membrane binding and assembly are driven by interactions between N-terminal helix H0 and the lipid bilayer. Furthermore, we find that endophilin B1 membrane remodeling is auto-inhibited and identify direct SH3 domain-H0 interactions as the underlying mechanism. Our results indicate that lipid composition plays a role in dictating endophilin B1 activity. Taken together, this study provides insight into a poorly understood N-BAR protein family member and highlights molecular mechanisms that may be general for the regulation of membrane remodeling. Our work suggests that interplay between membrane lipids and membrane interacting proteins facilitates spatial and temporal coordination of membrane remodeling.


    Organizational Affiliation

    The Hormel Institute, University of Minnesota, 801 16(th) Avenue NE, Austin, MN 55912, USA. Electronic address: asundbor@umn.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Endophilin-B1
A, B, C, D, E, F, G, H
365Homo sapiensMutation(s): 0 
Gene Names: SH3GLB1KIAA0491CGI-61
Membrane protein
Mpstruc
Group: 
MONOTOPIC MEMBRANE PROTEINS
Sub Group: 
Membrane-Shaping Proteins
Protein: 
Endophilin B1 N-BAR helical scaffold protein
Find proteins for Q9Y371 (Homo sapiens)
Explore Q9Y371 
Go to UniProtKB:  Q9Y371
NIH Common Fund Data Resources
PHAROS:  Q9Y371
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.00 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: HELICAL 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-06-24
    Type: Initial release
  • Version 1.1: 2020-11-04
    Changes: Database references
  • Version 1.2: 2021-01-20
    Changes: Database references