8QVQ | pdb_00008qvq

Cryo-EM structure of human islet amyloid polypeptide (hIAPP) mutant S29P, polymorph 2

• PDB DOI: https://doi.org/10.2210/pdb8QVQ/pdb
• EM Map EMD-18672: EMDB EMDataResource

• Classification: PROTEIN FIBRIL
• Organism(s): Homo sapiens
• Mutation(s): Yes 


• Deposited: 2023-10-18 Released: 2025-05-21 
• Deposition Author(s): Ooi, S.A., Valli, D., Maj, M.
• Funding Organization(s): Swedish Research Council, Other private

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.07 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

Cryo-EM structure of human islet amyloid polypeptide (hIAPP) mutant S29P, polymorph 2

Ooi, S.A., Valli, D., Maj, M.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 15-mer - A15 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 58.76 kDa 
• Atom Count: 2,545 
• Modeled Residue Count: 360 
• Deposited Residue Count: 570 
• 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, I, J, K, L, M, N, O	38	Homo sapiens	Mutation(s): 1
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: 4.07 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21
RECONSTRUCTION	RELION	4.0.0

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-05-21 
Deposition Author(s): Ooi, S.A., Valli, D., Maj, M.

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Funding Organization	Location	Grant Number
Swedish Research Council	Sweden	VR 2020-05403
Other private		Swedish Society for Medical Research (S20-0156)

Revision History  

• Version 1.0: 2025-05-21
  Type: Initial release
  
• Version 2.0: 2025-10-01
  Type: Coordinate replacement
  Reason: Atomic clashes
  Changes: Atomic model, Author supporting evidence, Data collection, Derived calculations, Structure summary