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Related Concept Videos

Oxygen Transport in the Blood01:27

Oxygen Transport in the Blood

Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
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Gene families consist of groups of genes proposed to have originated from a common ancestor. Typically these arise through events in which a gene or genes are mistakenly duplicated during cell division. Unlike their parent genes (which are subject to selection pressure to maintain function), these gene copies do not need to preserve their sequences and may evolve at a relatively faster rate.
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Related Experiment Video

Updated: Jun 10, 2026

Synthesis, Hemoglobin Encapsulation and Biorthogonal PEGylation in Hierarchically Porous UiO-66 Nanoparticles for Oxygen Delivery Applications
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Reversible dioxygen binding in solvent-free liquid myoglobin.

Adam W Perriman1, Alex P S Brogan, Helmut Cölfen

  • 1Centre for Organized Matter Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, UK.

Nature Chemistry
|July 24, 2010
PubMed
Summary

Researchers created room-temperature, solvent-free myoglobin liquids. These liquids maintain near-native structure and reversible dioxygen binding, offering new possibilities for protein-based nanotechnology.

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Published on: April 14, 2015

Area of Science:

  • Biochemistry
  • Structural Biology
  • Materials Science

Background:

  • Protein structure and function are intrinsically linked to aqueous environments.
  • Denaturation and loss of function occur under non-native conditions like dehydration or heat.
  • Functional metalloproteins in solvent-free liquids are previously unknown.

Purpose of the Study:

  • To synthesize and characterize room-temperature, solvent-free myoglobin liquids.
  • To assess the structural integrity and functional activity of myoglobin in a solvent-free state.
  • To explore potential applications in nanoscience and bionanotechnology.

Main Methods:

  • Synthesis of room-temperature, solvent-free myoglobin liquids.
  • Structural analysis to confirm near-native protein conformation.
  • Functional assays to evaluate dioxygen binding capacity.

Main Results:

  • Successfully created stable, room-temperature solvent-free myoglobin liquids.
  • Myoglobin retained near-native structure in the solvent-free liquid state.
  • Dioxygen binding ability was equivalent to physiological conditions and reversible.

Conclusions:

  • Demonstrated the feasibility of functional metalloproteins in solvent-free liquids.
  • Challenges existing theories on the role of solvent in protein structure and function.
  • Opens new avenues for protein-based nanoscience and bionanotechnology.