ISGylation: is our genome yearning for such a modification?

Area of Science:

• Molecular Biology
• Immunology
• Oncology

Background:

• ISGylation is a post-translational modification involving the conjugation of interferon-stimulated gene 15 (ISG15) to protein substrates.
• Initially recognized for its role in antiviral immunity, ISGylation is now implicated in broader biological functions.
• Emerging evidence links ISGylation to genomic stability, tumorigenesis, and other pathological conditions.

Purpose of the Study:

• To review the molecular mechanisms governing ISGylation.
• To explore the interplay between ISGylation and other post-translational modifications.
• To discuss the involvement of ISGylation in various biological and pathological processes, with a focus on genome instability.

Main Methods:

• Literature review of existing research on ISGylation.
• Analysis of molecular pathways and regulatory networks involving ISGylation.
• Synthesis of data on ISGylation's role in disease pathogenesis.

Main Results:

• Detailed examination of the enzymatic machinery and substrate recognition in ISGylation.
• Elucidation of how ISGylation influences cellular processes like DNA repair and cell cycle control.
• Identification of ISGylation as a key player in promoting or suppressing tumor development.

Conclusions:

• ISGylation is a versatile modification with significant roles beyond antiviral defense.
• Further research into ISGylation mechanisms and its pathological relevance is warranted.
• Targeting ISGylation pathways holds potential for therapeutic interventions, particularly for genome instability-associated diseases.