Monitoring of Chromatin Organization at the Nuclear Pore Complex, Inner Nuclear Membrane, and Nuclear Interior in Live Cells by Fluorescence Ratiometric Imaging of Chromatin (FRIC).
Methods Mol Biol
; 2502: 151-160, 2022.
Article
en En
| MEDLINE
| ID: mdl-35412237
ABSTRACT
The image analysis tool FRIC (Fluorescence Ratiometric Imaging of Chromatin) quantitatively monitors dynamic spatiotemporal distribution of euchromatin and total chromatin in live cells. A vector (pTandemH) assures stoichiometrically constant expression of the histone variants Histone 3.3 and Histone 2B, fused to EGFP and mCherry, respectively. Quantitative ratiometric (H3.3/H2B) imaging displayed a concentrated distribution of heterochromatin in the periphery of U2OS cell nuclei. As a proof of concept, peripheral heterochromatin responded to experimental manipulation of histone acetylation as well as expression of the mutant lamin A protein "progerin," which causes Hutchinson-Gilford Progeria Syndrome. In summary FRIC is versatile, unbiased, robust, requires a minimum of experimental steps and is suitable for screening purposes.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cromatina
/
Membrana Nuclear
Límite:
Humans
Idioma:
En
Revista:
Methods Mol Biol
Asunto de la revista:
BIOLOGIA MOLECULAR
Año:
2022
Tipo del documento:
Article
País de afiliación:
Suecia