Correct spelling for the English word "PARG" is [pˈɑːɡ], [pˈɑːɡ], [p_ˈɑː_ɡ] (IPA phonetic alphabet).
PARG stands for Poly(ADP-ribose) Glycohydrolase. It is an enzyme that plays a crucial role in the regulation of cellular processes involving DNA repair and metabolism. PARG specifically functions as a glycohydrolase, meaning it cleaves the glycosidic bonds that link together ADP-ribose subunits in poly(ADP-ribose) chains.
Poly(ADP-ribose) chains, synthesized by another enzyme called poly(ADP-ribose) polymerase (PARP), are important in cellular responses to DNA damage, such as DNA strand breaks. These chains serve as signals to recruit DNA repair enzymes and facilitate the repair of damaged DNA. However, once the repair process is complete, PARG acts to degrade the poly(ADP-ribose) chains.
The degradation of poly(ADP-ribose) chains by PARG is necessary to ensure the proper functioning of cellular processes. Excessive accumulation of poly(ADP-ribose) chains can interfere with normal DNA repair mechanisms, leading to genomic instability. Therefore, PARG helps to maintain genomic stability and prevent the occurrence of DNA damage-related diseases, such as cancer.
Recent research has also highlighted the involvement of PARG in other cellular processes, including cell division, cell death, and cellular stress responses. Dysregulation of PARG activity has been linked to various diseases, including neurodegenerative disorders, cardiovascular diseases, and inflammatory conditions. Therefore, PARG is considered an important target for the development of therapeutic interventions aimed at modulating DNA repair processes and treating associated pathologies.