3P33

Insulin fibrillation is the Janus face of induced fit. A chiral clamp stabilizes the native state at the expense of activity

• PDB DOI: https://doi.org/10.2210/pdb3P33/pdb

• Classification: HORMONE
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2010-10-04 Released: 2011-11-23 
• Deposition Author(s): Hua, Q.X., Wan, Z.L., Huang, K., Hu, S.Q., Phillip, N.F., Jia, W.H., Whittingham, J., Dodson, G.G., Katsoyannis, P.G., Weiss, M.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.299 
• R-Value Work: 0.214 

Starting Model: experimental

Literature

Insulin fibrillation is the Janus face of induced fit. A chiral clamp stabilizes the native state at the expense of activity

Hua, Q.X., Wan, Z.L., Huang, K., Hu, S.Q., Phillip, N.F., Jia, W.H., Whittingham, J., Dodson, G.G., Katsoyannis, P.G., Weiss, M.A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 

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

Biological Assembly 2  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 24.05 kDa 
• Atom Count: 1,746 
• Modelled Residue Count: 204 
• Deposited Residue Count: 204 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Insulin	A, C, E, G	21	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P01308 (Homo sapiens) Explore P01308  Go to UniProtKB:  P01308
PHAROS:  P01308 GTEx:  ENSG00000254647

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Insulin	B, D, F, H	30	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P01308 (Homo sapiens) Explore P01308  Go to UniProtKB:  P01308
PHAROS:  P01308 GTEx:  ENSG00000254647

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
IPH	I [auth A], L [auth C], O [auth E], R [auth G]	PHENOL C6 H6 O ISWSIDIOOBJBQZ-UHFFFAOYSA-N
ZN	J [auth B], M [auth D], P [auth F], S [auth H]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
CL	K [auth B], N [auth D], Q [auth F], T [auth H]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.299 
• R-Value Work: 0.214 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 77.9	α = 90
b = 77.9	β = 90
c = 78.3	γ = 120

Software Package:

Software Name	Purpose
PROTEUM PLUS	data collection
CNS	refinement
PROTEUM PLUS	data reduction
PROTEUM PLUS	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-11-23 
Deposition Author(s): Hua, Q.X., Wan, Z.L., Huang, K., Hu, S.Q., Phillip, N.F., Jia, W.H., Whittingham, J., Dodson, G.G., Katsoyannis, P.G., Weiss, M.A.

Revision History  

• Version 1.0: 2011-11-23
  Type: Initial release
  
• Version 1.1: 2014-10-08
  Changes: Database references
• Version 1.2: 2014-10-15
  Changes: Derived calculations
• Version 1.3: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-11-20
  Changes: Structure summary