7YKW

Structure of hIAPP fibril at 3.6 Angstroms resolution

• PDB DOI: https://doi.org/10.2210/pdb7YKW/pdb
• EM Map EMD-33897: EMDB EMDataResource

• Classification: PROTEIN FIBRIL
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2022-07-25 Released: 2023-01-18 
• Deposition Author(s): Li, D., Zhang, X., Wang, Y., Zhu, P.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.60 Å
• Aggregation State: HELICAL ARRAY 
• Reconstruction Method: HELICAL 

Literature

A new polymorphism of human amylin fibrils with similar protofilaments and a conserved core

Li, D., Zhang, X., Wang, Y., Zhang, H., Song, K., Bao, K., Zhu, P.

(2022) iScience 25: 105705

• DOI: https://doi.org/10.1016/j.isci.2022.105705

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 8-mer - A4B4 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 31.27 kDa 
• Atom Count: 1,908 
• Modelled Residue Count: 256 
• Deposited Residue Count: 296 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Islet amyloid polypeptide	A, B, C, D, E, F, G, H	37	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P10997 (Homo sapiens) Explore P10997  Go to UniProtKB:  P10997
PHAROS:  P10997 GTEx:  ENSG00000121351

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.60 Å
• Aggregation State: HELICAL ARRAY 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION	3.0

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-01-18 
Deposition Author(s): Li, D., Zhang, X., Wang, Y., Zhu, P.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	2017YFA0504700
National Natural Science Foundation of China (NSFC)	China	2018YFE0203300
National Natural Science Foundation of China (NSFC)	China	2021YFA1300100

Revision History  

• Version 1.0: 2023-01-18
  Type: Initial release