Mass spectrometry analysis of affinity-purified cytoplasmic translation initiation complexes from human and fly cells.
STAR Protoc
; 3(4): 101739, 2022 12 16.
Article
en En
| MEDLINE
| ID: mdl-36181679
ABSTRACT
eIF5-mimic protein (5MP) controls translation through binding to the ribosomal pre-initiation complex (PIC) and alters non-AUG translation rates for cancer oncogenes and repeat-expansions in neurodegenerative diseases. Here, we describe a semi-quantitative protocol for detecting 5MP-associated proteins in cultured human and fly cells. We detail one-step anti-FLAG affinity purification and whole-lane mass spectrometry analysis of samples resolved by SDS-PAGE. This protocol allows for quantitative evaluation of the effect of 5MP mutations on its molecular interactions, to elucidate translational control by 5MP. For complete details on the use and execution of this protocol, please refer to Singh et al. (2021).
Palabras clave
Texto completo:
1
Colección:
01-internacional
Asunto principal:
Ribosomas
/
Biosíntesis de Proteínas
Límite:
Humans
Idioma:
En
Revista:
STAR Protoc
Año:
2022
Tipo del documento:
Article