Adenine and guanine nucleotide content of triton-extracted cytoskeletal fractions of nonmuscle cells

James M Angelastro, Daniel L. Purich

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)47-52
Number of pages6
JournalAnalytical Biochemistry
Volume204
Issue number1
DOIs
StatePublished - 1992
Externally publishedYes

Fingerprint

Guanine Nucleotides
Adenine Nucleotides
Nucleotides
Tubulin
Adenosine Diphosphate
Actins
Nucleoside-Triphosphatase
Foreskin
Octoxynol
Spinal Ganglia
Pheochromocytoma
Fibroblasts
Guanosine Triphosphate
Cytoskeleton
Neuroblastoma
Nucleosides
Cell culture
Neurons
Rats
Contamination

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

Cite this

Adenine and guanine nucleotide content of triton-extracted cytoskeletal fractions of nonmuscle cells. / Angelastro, James M; Purich, Daniel L.

In: Analytical Biochemistry, Vol. 204, No. 1, 1992, p. 47-52.

Research output: Contribution to journalArticle

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