The Protein Journal

, Volume 29, Issue 6, pp 387–393 | Cite as

Towards the Development of Hemerythrin-Based Blood Substitutes

  • Augustin C. Mot
  • Alina Roman
  • Iulia Lupan
  • Donald M. KurtzJr
  • Radu Silaghi-Dumitrescu


Hemerythrin is proposed as an alternative to hemoglobin-based blood substitutes. In contrast to hemoglobin, hemerythrin exhibits negligible reactivity towards oxidative and nitrosative stress agents (peroxide, nitric oxide, nitrite). Protocols for attachment of polyethylene glycol and glutaraldehyde cross-linking of Hr are described. These derivatizations appear to have favorable effects on O2 affinity and autoxidation rates for use in blood substitutes. Based on lessons learned from hemoglobin-based blood substitutes, these derivatizations should also help limit extravasation and antigenicity of a hemerythrin-based blood substitute.


Hemerythrin Blood substitute Oxygen carrier Hemoglobin 









Optical density at 600 nm


Sodium dodecyl sulfate–polyacrylamide gel electrophoresis


Phosphate buffer saline


Polyethelene glycol


Methyl-PEG4-N-hydroxysuccinimide ester


(Methyl-PEG12)3-PEG4-N-hydroxysuccinimide ester







We thank Prof. C.C. Cooper (University of Essex, UK) for helpful discussions. Funding from the Romanian government (project PNII 565/2007) and NIH grant GM040388 (D.M.K.) is gratefully acknowledged.


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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Augustin C. Mot
    • 1
  • Alina Roman
    • 1
  • Iulia Lupan
    • 2
  • Donald M. KurtzJr
    • 3
  • Radu Silaghi-Dumitrescu
    • 1
  1. 1.Department of Chemistry and Chemical Engineering“Babes-Bolyai” UniversityCluj-NapocaRomania
  2. 2.Department of Biology“Babes-Bolyai” UniversityCluj-NapocaRomania
  3. 3.Department of ChemistryUniversity of Texas at San AntonioSan AntonioUSA

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