From ORFeomes to protein interaction maps in viruses

Area of Science:

• Virology
• Systems Biology
• Bioinformatics

Background:

• Genome-wide interaction mapping is challenging for viruses.
• Cloned viral ORFeomes offer a promising approach due to limited viral genome sizes.
• Few studies have utilized viral ORFeomes for interaction mapping.

Purpose of the Study:

• To summarize existing and ongoing virus interaction mapping projects using cloned viral ORFeomes.
• To highlight the importance of considering virus-specific coding and replication strategies for accurate interaction mapping.
• To underscore the potential of viral ORFeomes in systems biology and understanding pathogenesis.

Main Methods:

• Review and summarization of published and in-progress virus interaction mapping projects.
• Analysis of studies involving vaccinia virus, hepatitis C virus (HCV), potato virus A (PVA), pea seed-borne mosaic virus (PSbMV), and bacteriophage T7.
• Identification of challenges and considerations for accurate viral protein interaction mapping.

Main Results:

• Viral protein interaction mapping projects using cloned ORFeomes have been initiated for several viruses.
• Accurate interaction mapping requires accounting for virus-specific strategies, such as polyprotein processing in RNA viruses and cytoplasmic replication.
• Significant numbers of false negatives can occur if these specificities are not considered.

Conclusions:

• Cloned pathogen ORFeomes are valuable tools for creating comprehensive viral protein interaction maps.
• These maps will contribute to a holistic understanding of infectious disease pathogenesis.
• Viral ORFeome and interaction mapping projects are foundational for new systems biology approaches.