Skip to main content
Log in

Differential Scanning Calorimetric and Circular Dichroistic Studies on Plant Antifreeze Proteins

  • Published:
Journal of Thermal Analysis and Calorimetry Aims and scope Submit manuscript

Abstract

Antifreeze protein (AFP) can lower the freezing point by inhibiting the growth of ice crystals. In this article, the thermal hysteresis activity (THA) of a plant AFP was measured with differential scanning calorimetry (DSC). As is shown, when the amount of ice in the sample was less than 5% THA of this AFP reached as high as 0.35°C. The secondary structure of this AFP was studied with circular dichroism (CD). The CD spectrum from 195to 240 nm indicated a well-defined secondary structure consisting 11% α-helix, 34%antiparallel β-sheet and 55% random coil.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. C. L. Hew and D. S. C. Yang, Eur. J. Biochem., 203 (1992) 33.

    Article  CAS  Google Scholar 

  2. J. G. Duman, Biochimica et Biophysica Acta, 1206 (1994) 129.

    CAS  Google Scholar 

  3. W. C. How, M. Griffith, P. Chong and D. S. C. Yang, Plant Physiol, 104 (1994) 971.

    Google Scholar 

  4. T. N. Hansen and J. G. Baust, Biochim. Biophys. Acta, 957 (1988) 217.

    CAS  Google Scholar 

  5. J. G. Duman and T. M. Olsen, Cryobiology, 30 (1993) 322.

    Article  Google Scholar 

  6. V. S. Ananthanarayanan, D. Slaughter and C. L. Hew, Biochim. Biophys. Acta, 870 (1986) 154.

    CAS  Google Scholar 

  7. D. Slaughter, G. L. Fletcher, V. S. Ananthanaryanan and C. L. Hew, J. Bio. Chem., 256 (1981) 2022.

    CAS  Google Scholar 

  8. F. D. Sonnichsen, B. D. Sykes, H. Chao and P. L. Davies, Science, 259 (1993) 1154.

    CAS  Google Scholar 

  9. P. L. Davies and C. L. Hew, FASEB J., 4 (1992) 2460.

    Google Scholar 

  10. A. L. Devries and Y. Lin, Biochim. Biophys. Acta, 495 (1977) 388.

    CAS  Google Scholar 

  11. D. Wen and R. A. Lausen, Biophys. J., 63 (1992) 1659.

    Article  CAS  Google Scholar 

  12. J. G. Duman, J. Comp. Physiol. B, 131 (1979) 347.

    Article  Google Scholar 

  13. J. G. Duman, J. Exp. Zool., 201 (1997) 333.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lu, M., Wang, B., Li, Z. et al. Differential Scanning Calorimetric and Circular Dichroistic Studies on Plant Antifreeze Proteins. Journal of Thermal Analysis and Calorimetry 67, 689–698 (2002). https://doi.org/10.1023/A:1014369208229

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1014369208229

Navigation