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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Grupo metilo

Methyl group (MEH-thul groop)
A small molecule made of one carbon and three hydrogen atoms. Methyl groups are added or removed from proteins or nucleic acids and may change the way these molecules act in the body.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.