Prion-like proteins: from computational approaches to proteome-wide analysis

Area of Science:

• Biochemistry
• Molecular Biology
• Evolutionary Biology

Background:

• Prions are self-perpetuating proteins that switch between soluble and aggregated, transmissible states.
• Studied extensively in yeast, prions are implicated in heritable phenotypic adaptations.
• The potential functional and evolutionary roles of prions have spurred research into their identification across diverse life forms.

Purpose of the Study:

• To review state-of-the-art computational methods for identifying prion-like proteins.
• To summarize proteome-wide analyses of prion-like protein distribution.
• To discuss the functional significance and disease relevance of these proteins.

Main Methods:

• Utilizing computational algorithms to screen proteomes for prion-like protein sequences.
• Analyzing the distribution and conservation of prion-like proteins across different species.
• Reviewing literature on the functional roles and validated examples of prion-like proteins.

Main Results:

• Computational tools have successfully identified prion-like proteins in various unrelated organisms.
• The prion phenomenon is conserved across a wide diversity of species.
• Prion-like proteins are associated with functional membraneless coacervates and human diseases.

Conclusions:

• Prion-like proteins are widespread and evolutionarily conserved, suggesting important biological functions.
• Computational approaches are effective for identifying these proteins across different kingdoms of life.
• Further research into prion-like proteins is crucial for understanding both fundamental biology and human health.