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Hemoglobin: Structure, Function and Allostery

Mostafa H Ahmed1, Mohini S Ghatge1,2, Martin K Safo3,4

  • 1Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, 23219, USA.

Sub-Cellular Biochemistry
|March 20, 2020
PubMed

This chapter reviews how allosteric (heterotrophic) effectors and natural mutations impact hemoglobin (Hb) primary physiological function of oxygen binding and transport. First, an introduction about the structure of Hb is provided, including the ensemble of tense and relaxed Hb states and the dynamic equilibrium of Hb multistate. This is followed by a brief review of Hb variants with altered Hb structure and oxygen binding properties. Finally, a review of different endogenous and exogenous allosteric effectors of Hb is presented with particular emphasis on the atomic interactions of synthetic ligands with altered allosteric function of Hb that could potentially be harnessed for the treatment of diseases.

Keywords:
Allosteric effectorsAllosteryHemoglobinHemoglobin variantsOxygen affintyRelaxed stateT stateX-ray crystallography

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