1M5A | pdb_00001m5a

Crystal Structure of 2-Co(2+)-Insulin at 1.2A Resolution

• PDB DOI: https://doi.org/10.2210/pdb1M5A/pdb

• Classification: HORMONE/GROWTH FACTOR
• Organism(s): Sus scrofa
• Mutation(s): No 


• Deposited: 2002-07-09 Released: 2002-08-14 
• Deposition Author(s): Nicholson, J.M., Perkins, L.C., Korber, F.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 
  0.241 (Depositor) 
• R-Value Work: 
  0.181 (Depositor) 
• R-Value Observed: 
  0.185 (Depositor) 

Starting Model: experimental

Literature

The high-resolution structure of hexameric T6 cobalt insulin: A possible pathway for the T to R transition.

Nicholson, J.M., Perkins, L.C., Korber, F.C.

(2006) Recent Research Developments In Molecular Biology 3: 1-17

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Hetero 12-mer - A6B6 Pseudo Symmetry: Cyclic - C3  (Explore in 3D)
Pseudo Stoichiometry: Hetero 12-mer - A6B3C3 

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

Macromolecule Content 

• Total Structure Weight: 11.69 kDa 
• Atom Count: 1,005 
• Modeled Residue Count: 102 
• Deposited Residue Count: 102 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
INSULIN A CHAIN	A, C	21	Sus scrofa	Mutation(s): 0
UniProt
Find proteins for P01315 (Sus scrofa) Explore P01315  Go to UniProtKB:  P01315

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
INSULIN B CHAIN	B, D	30	Sus scrofa	Mutation(s): 0
UniProt
Find proteins for P01315 (Sus scrofa) Explore P01315  Go to UniProtKB:  P01315

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CO	E [auth B], F [auth D]	COBALT (II) ION Co XLJKHNWPARRRJB-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free:  0.241 (Depositor) 
• R-Value Work:  0.181 (Depositor) 
• R-Value Observed: 0.185 (Depositor) 

Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.75	α = 90
b = 80.75	β = 90
c = 33.63	γ = 120

Software Package:

Software Name	Purpose
PXGEN	data collection
ROTAVATA	data reduction
AMoRE	phasing
PROLSQ	refinement
PXGEN	data reduction
CCP4	data scaling
ROTAVATA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-08-14 
Deposition Author(s): Nicholson, J.M., Perkins, L.C., Korber, F.C.

Revision History  

• Version 1.0: 2002-08-14
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2011-11-16
  Changes: Atomic model
• Version 1.4: 2014-02-19
  Changes: Database references
• Version 1.5: 2017-10-11
  Changes: Advisory, Refinement description
• Version 1.6: 2024-11-06
  Changes: Advisory, Data collection, Database references, Derived calculations, Refinement description, Structure summary