Phosphorylation Targets of DNA-PK and Their Role in HIV-1 Replication.
Cells
; 9(8)2020 08 16.
Article
en En
| MEDLINE
| ID: mdl-32824372
ABSTRACT
The DNA dependent protein kinase (DNA-PK) is a trimeric nuclear complex consisting of a large protein kinase and the Ku heterodimer. The kinase activity of DNA-PK is required for efficient repair of DNA double-strand breaks (DSB) by non-homologous end joining (NHEJ). We also showed that the kinase activity of DNA-PK is essential for post-integrational DNA repair in the case of HIV-1 infection. Besides, DNA-PK is known to participate in such cellular processes as protection of mammalian telomeres, transcription, and some others where the need for its phosphorylating activity is not clearly elucidated. We carried out a systematic search and analysis of DNA-PK targets described in the literature and identified 67 unique DNA-PK targets phosphorylated in response to various in vitro and/or in vivo stimuli. A functional enrichment analysis of DNA-PK targets and determination of protein-protein associations among them were performed. For 27 proteins from these 67 DNA-PK targets, their participation in the HIV-1 life cycle was demonstrated. This information may be useful for studying the functioning of DNA-PK in various cellular processes, as well as in various stages of HIV-1 replication.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Replicación Viral
/
Infecciones por VIH
/
VIH-1
/
Proteína Quinasa Activada por ADN
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Cells
Año:
2020
Tipo del documento:
Article
País de afiliación:
Rusia