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[Multinuclear blue copper-proteins: the evolutionary design].
Zhurnal Evoliutsionnoi Biokhimii I Fiziologii
|March 18, 2015
Summary
Multinuclear blue copper-proteins (MBCP) evolved from simpler precursors through gene amplification and domain combination. These widespread proteins, including oxidases and reductases, showcase diverse evolutionary adaptations.
Area of Science:
- Biochemistry and Molecular Evolution
- Bioinorganic Chemistry
Context:
- Multinuclear blue copper-proteins (MBCP) are ubiquitous in nature, found in archaea, bacteria, and eukaryotes.
- These proteins exhibit diverse functions, encompassing roles as oxidases, reductases, and crucial blood coagulation factors (V and VIII).
Purpose:
- To review the evolutionary pathways and mechanisms that have shaped multinuclear blue copper-proteins (MBCP).
- To explore the structural and functional diversification of MBCP from a common protein precursor.
Summary:
- MBCP likely originated from a low-molecular weight, cupredoxin-like precursor.
- Evolutionary mechanisms include gene amplification, domain shuffling, alterations in domain size, and modifications of copper-binding centers.
- Further diversification involves changes in amino acid ligands, acquisition of other binding sites, and glycosylation.
Impact:
- Provides insights into the evolutionary strategies driving protein complexity and functional diversity.
- Highlights the conserved yet adaptable nature of copper-binding proteins across different life forms.
- Establishes a framework for understanding the structure-function relationships in MBCP.
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