Crystal structure of Parvalbumin SPV-II of Mustelus griseus

Experimental Data Snapshot

  • Resolution: 1.54 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.195 

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Purification, Characterization, and Crystal Structure of Parvalbumins, the Major Allergens in Mustelus griseus.

Yang, R.Q.Chen, Y.L.Chen, F.Wang, H.Zhang, Q.Liu, G.M.Jin, T.Cao, M.J.

(2018) J Agric Food Chem 66: 8150-8159

  • DOI: https://doi.org/10.1021/acs.jafc.8b01889
  • Primary Citation of Related Structures:  
    5ZGM, 5ZH6

  • PubMed Abstract: 

    Fish play important roles in human nutrition and health, but also trigger allergic reactions in some population. Parvalbumin (PV) represents the major allergen of fish. While IgE cross-reactivity to PV in various bony fish species has been well characterized, little information is available about allergens in cartilaginous fish. In this study, two shark PV isoforms (named as SPV-I and SPV-II) from Mustelus griseus were purified. Their identities were further confirmed by mass spectroscopic analysis. IgE immunoblot analysis showed that sera from fish-allergic patients reacted to both SPV-I and SPV-II, but the majority of sera reacted more intensely to SPV-I than SPV-II. Thermal denaturation monitored by CD spectrum showed that both of the SPV allergens are highly thermostable. SPV-I maintained its IgE-binding capability after heat denaturation, while the IgE-binding capability of SPV-II was reduced. The results of crystal structure showed that SPV-I and SPV-II were similar in their overall tertiary structure, but their amino acid sequences shared lower similarities, indicating that the differences in the IgE-binding capabilities of SPV-I and SPV-II might be due to differential antigen epitopes in these two isoforms.

  • Organizational Affiliation

    College of Food and Biological Engineering , Jimei University , Xiamen , Fujian 361021 , China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Parvalbumin SPV-II
A, B
107Mustelus griseusMutation(s): 0 
Find proteins for A0A3F2YLV2 (Mustelus griseus)
Explore A0A3F2YLV2 
Go to UniProtKB:  A0A3F2YLV2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A3F2YLV2
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.54 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.195 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.87α = 90
b = 41.8β = 110.41
c = 60.34γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XDSdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-08-01
    Type: Initial release
  • Version 1.1: 2018-08-08
    Changes: Data collection, Database references
  • Version 1.2: 2019-08-28
    Changes: Data collection
  • Version 1.3: 2023-11-22
    Changes: Data collection, Database references, Derived calculations, Refinement description