2AFP

THE SOLUTION STRUCTURE OF TYPE II ANTIFREEZE PROTEIN REVEALS A NEW MEMBER OF THE LECTIN FAMILY


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 
  • Selection Criteria: GLOBAL ENERGY AND LEAST RESTRAINT VIOLATION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The solution structure of type II antifreeze protein reveals a new member of the lectin family.

Gronwald, W.Loewen, M.C.Lix, B.Daugulis, A.J.Sonnichsen, F.D.Davies, P.L.Sykes, B.D.

(1998) Biochemistry 37: 4712-4721

  • DOI: 10.1021/bi972788c
  • Primary Citation of Related Structures:  
    2AFP

  • PubMed Abstract: 
  • A recombinant form of the sea raven type II antifreeze protein (SRAFP) has been produced using the Pichia pastoris expression system. The antifreeze activity of recombinant SRAFP is indistinguishable from that of the wild-type protein. The global fol ...

    A recombinant form of the sea raven type II antifreeze protein (SRAFP) has been produced using the Pichia pastoris expression system. The antifreeze activity of recombinant SRAFP is indistinguishable from that of the wild-type protein. The global fold of SRAFP has been determined by two-dimensional 1H homonuclear and three-dimensional 1H-¿15N¿ heteronuclear NMR spectroscopy using 785 NOE distance restraints and 47 angular restraints. The molecule folds into one globular domain that consists of two helices and nine beta-strands in two beta-sheets. The structure confirms the proposed existence of five disulfide bonds. The global fold of SRAFP is homologous to C-type lectins and pancreatic stone proteins, even though the sequence identity is only approximately 20%.


    Organizational Affiliation

    Protein Engineering Network of Centres of Excellence, University of Alberta, Edmonton, Alberta T6G 2S2, Canada.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (SEA RAVEN TYPE II ANTIFREEZE PROTEIN)A129Hemitripterus americanusMutation(s): 0 
Find proteins for P05140 (Hemitripterus americanus)
Explore P05140 
Go to UniProtKB:  P05140
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 
  • Selection Criteria: GLOBAL ENERGY AND LEAST RESTRAINT VIOLATION 
  • OLDERADO: 2AFP Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-12-23
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance