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J Am Chem Soc ; 145(41): 22287-22292, 2023 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-37774000

RESUMO

Protein palmitoylation, with more than 5000 substrates, is the most prevalent form of protein lipidation. Palmitoylated proteins participate in almost all areas of cellular physiology and have been linked to several human diseases. Twenty-three zDHHC enzymes catalyze protein palmitoylation with extensive overlap among the substrates of each zDHHC member. Currently, there is no global strategy to delineate the physiological substrates of individual zDHHC enzymes without perturbing the natural cellular pool. Here, we outline a general approach to accomplish this on the basis of synthetic orthogonal substrates that are only compatible with engineered zDHHC enzymes. We demonstrate the utility of this strategy by validating known substrates and use it to identify novel substrates of two human zDHHC enzymes. Finally, we employ this method to discover and explore conserved palmitoylation in a family of host restriction factors against pathogenic viruses, including SARS-CoV-2.


Assuntos
Aciltransferases , COVID-19 , Humanos , Aciltransferases/metabolismo , Especificidade por Substrato , SARS-CoV-2/metabolismo , Proteínas/metabolismo , Lipoilação
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