1GZI

CRYSTAL STRUCTURE OF TYPE III ANTIFREEZE PROTEIN FROM OCEAN POUT, AT 1.8 ANGSTROM RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb1GZI/pdb

• Classification: ICE-BINDING PROTEIN
• Organism(s): Zoarces americanus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 1996-10-25 Released: 1997-09-17 
• Deposition Author(s): Antson, A.A., Lewis, S., Roper, D.I., Smith, D.J., Hubbard, R.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.233 (Depositor) 
• R-Value Work: 
  0.174 (Depositor) 

Literature

The Structure of Type III Antifreeze Protein from Ocean Pout

Antson, A.A., Lewis, S., Roper, D.I., Smith, D.J., Hubbard, R.E.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 6.91 kDa 
• Atom Count: 537 
• Modelled Residue Count: 65 
• Deposited Residue Count: 65 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HPLC-12 TYPE III ANTIFREEZE PROTEIN	A	65	Zoarces americanus	Mutation(s): 1  Gene Names: RECOMBINANT TYPE III AFP HPLC
UniProt
Find proteins for P19614 (Zoarces americanus) Explore P19614  Go to UniProtKB:  P19614

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.233 (Depositor) 
• R-Value Work:  0.174 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 32.55	α = 90
b = 39.3	β = 90
c = 45.52	γ = 90

Software Package:

Software Name	Purpose
CCP4	model building
REFMAC	refinement
DENZO	data reduction
CCP4	data scaling
CCP4	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-09-17 
Deposition Author(s): Antson, A.A., Lewis, S., Roper, D.I., Smith, D.J., Hubbard, R.E.

Revision History  

• Version 1.0: 1997-09-17
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-11-03
  Changes: Database references, Other
• Version 1.4: 2024-02-07
  Changes: Data collection