hnRNP A1 segment GGGYGGS (residues 234-240)

Experimental Data Snapshot

  • Resolution: 0.95 Å
  • R-Value Free: 0.121 
  • R-Value Work: 0.100 
  • R-Value Observed: 0.102 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Structural basis for reversible amyloids of hnRNPA1 elucidates their role in stress granule assembly.

Gui, X.Luo, F.Li, Y.Zhou, H.Qin, Z.Liu, Z.Gu, J.Xie, M.Zhao, K.Dai, B.Shin, W.S.He, J.He, L.Jiang, L.Zhao, M.Sun, B.Li, X.Liu, C.Li, D.

(2019) Nat Commun 10: 2006-2006

  • DOI: https://doi.org/10.1038/s41467-019-09902-7
  • Primary Citation of Related Structures:  
    5ZGD, 5ZGL, 6J60

  • PubMed Abstract: 

    Subcellular membrane-less organelles consist of proteins with low complexity domains. Many of them, such as hnRNPA1, can assemble into both a polydisperse liquid phase and an ordered solid phase of amyloid fibril. The former mirrors biological granule assembly, while the latter is usually associated with neurodegenerative disease. Here, we observe a reversible amyloid formation of hnRNPA1 that synchronizes with liquid-liquid phase separation, regulates the fluidity and mobility of the liquid-like droplets, and facilitates the recruitment of hnRNPA1 into stress granules. We identify the reversible amyloid-forming cores of hnRNPA1 (named hnRACs). The atomic structures of hnRACs reveal a distinct feature of stacking Asp residues, which contributes to fibril reversibility and explains the irreversible pathological fibril formation caused by the Asp mutations identified in familial ALS. Our work characterizes the structural diversity and heterogeneity of reversible amyloid fibrils and illuminates the biological function of reversible amyloid formation in protein phase separation.

  • Organizational Affiliation

    Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 201210, China.


Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
7-mer peptide from Heterogeneous nuclear ribonucleoprotein A1
A, B
7Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P09651 (Homo sapiens)
Explore P09651 
Go to UniProtKB:  P09651
PHAROS:  P09651
GTEx:  ENSG00000135486 
Entity Groups  
UniProt GroupP09651
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 0.95 Å
  • R-Value Free: 0.121 
  • R-Value Work: 0.100 
  • R-Value Observed: 0.102 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 11.957α = 90
b = 10.141β = 100.11
c = 21.372γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
HKL-2000data collection
SHELXTmodel building
SHELXLmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-04-03
    Type: Initial release
  • Version 1.1: 2019-10-16
    Changes: Data collection, Database references
  • Version 1.2: 2020-03-04
    Changes: Data collection
  • Version 1.3: 2024-03-27
    Changes: Data collection, Database references, Refinement description