6QRK | pdb_00006qrk

High pressure structure of bovine insulin (200 MPa)

• PDB DOI: https://doi.org/10.2210/pdb6QRK/pdb

• Classification: HORMONE
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 2019-02-19 Released: 2019-03-06 
• Deposition Author(s): Kurpiewska, K., Milaczewska, A., Lewinski, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 
  0.248 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.193 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.198 (Depositor) 

Starting Model: experimental

Literature

Insulin conformational changes under high pressure in structural studies and molecular dynamics simulations

Kurpiewska, K., Milaczewska, A., Lewinski, K.

(2020) J Mol Struct 

• DOI: https://doi.org/10.1016/j.molstruc.2019.127251

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Macromolecule Content 

• Total Structure Weight: 5.74 kDa 
• Atom Count: 441 
• Modeled Residue Count: 51 
• Deposited Residue Count: 51 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Insulin	A	21	Bos taurus	Mutation(s): 0
UniProt
Find proteins for P01317 (Bos taurus) Explore P01317  Go to UniProtKB:  P01317

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Insulin	B	30	Bos taurus	Mutation(s): 0
UniProt
Find proteins for P01317 (Bos taurus) Explore P01317  Go to UniProtKB:  P01317

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free:  0.248 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.193 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.198 (Depositor) 

Space Group: I 2₁ 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.14	α = 90
b = 78.14	β = 90
c = 78.14	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
CrysalisPro	data collection
MOSFLM	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-03-06 
Deposition Author(s): Kurpiewska, K., Milaczewska, A., Lewinski, K.

Revision History  

• Version 1.0: 2019-03-06
  Type: Initial release
  
• Version 1.1: 2020-03-18
  Changes: Database references
• Version 1.2: 2024-01-24
  Changes: Data collection, Database references, Refinement description
• Version 1.3: 2024-10-16
  Changes: Structure summary