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Oxygen binding of arthropod hemocyanin The role of allosteric equilibria in terms of the nested Monod-Wyman-Changeux model

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Summary

When the oxygen binding of the hemocyanin from the lobsterHomarus americanus was analysed in terms of the nested Monod-Wyman-Changeux model, it revealed that protons affect the allosteric equilibria between four conformations. Applying computer simulations we have demonstrated the specific influence of the three different allosteric equilibrium constants on the affinity and cooperativity of oxygen binding.

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References

  • Decker H, Sterner R (1990) Nested allostery of arthropodan hemocyanin (Eurypelma californicum andHomarus americanus): the role of protons. J Mol Biol 211:281–293

    PubMed  Google Scholar 

  • Decker H, Robert CH, Gill SJ (1986) Nesting — an extension of the allosteric model and its application to tarantula hemocyanin. In: Linzen B (ed) Invertebrate oxygen carriers, Springer, Heidelberg, pp 383–388.

    Google Scholar 

  • Ellerton HD, Ellerton NF, Robinson HA (1983) Hemocyanin — a current perspective. Proc Biophys Mol Biol 41:143–248

    Google Scholar 

  • Mangum CP, Shick JM (1972) The pH of body fluids of marine invertebrates. Comp Biochem Physiol 42A:693–697

    Google Scholar 

  • Monod J, Wyman J, Changeux JP (1965) On the nature of allosteric transitions: a plausible model. J Mol Biol 12:88–118

    PubMed  Google Scholar 

  • Richey B, Decker H, Gill SJ (1985) Binding of oxygen and carbon monoxide to arthropodan hemocyanin: an allosteric analysis. Biochemistry 24:109–117

    PubMed  Google Scholar 

  • Robert CH, Decker H, Richey B, Gill SJ, Wyman J (1987) Nesting: hierarchies of allosteric interactions. Proc Natl Acad Sci USA 84:1891–1895

    PubMed  Google Scholar 

  • van Holde KE, Miller KJ (1982) Hemocyanins. Q Rev Biophys 5:1–129

    Google Scholar 

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Decker, H., Sterner, R. Oxygen binding of arthropod hemocyanin The role of allosteric equilibria in terms of the nested Monod-Wyman-Changeux model. Biol Metals 3, 85–86 (1990). https://doi.org/10.1007/BF01179509

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