Adenine and guanine nucleotide content of Triton-extracted cytoskeletal fractions of nonmuscle cells.
Anal Biochem
; 204(1): 47-52, 1992 Jul.
Article
em En
| MEDLINE
| ID: mdl-1514695
ABSTRACT
Determination of the adenine and guanine nucleotides in Triton X-100-extracted cytoskeletal fractions was utilized to estimate the actin and tubulin content of the assembled cytoskeletons in nonmuscle cells. Results with stable cell lines (i.e., rat pheochromocytoma PC12 and neuroblastoma NB41A3) and with primary cultures (i.e., human foreskin fibroblasts and chick embryonic dorsal root ganglion neurons) exhibited levels of cytoskeletal fraction ADP and GDP consistent with their assembly-induced nucleoside-5'-triphosphatase activities only previously analyzed in vitro. Likewise, estimates of actin and tubulin content fall in the range of values obtained by other experimental approaches. In contrast, analysis of whole cell nucleotides showed high [ATP]/[ADP] and [GTP]/[GDP] ratios, suggesting there is little, if any, contamination of the cytoskeletal nucleotide pool by other cellular nucleotides.
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Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Citoesqueleto
/
Nucleotídeos de Adenina
/
Nucleotídeos de Guanina
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Anal Biochem
Ano de publicação:
1992
Tipo de documento:
Article