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Calcium Rises Abruptly and Briefly Throughout the Cell at the Onset of Anaphase

Poenie, Martin, Alderton, Janet, Steinhardt, Richard, Tsien, Roger·1986·Science

Abstract

Continuous measurement and imaging of the intracellular free calcium ion concentration ([Ca 2+ ] i ) of mitotic and interphase PtK 1 cells was accomplished with the new fluorescent Ca 2+ indicator fura-2. No statistically significant difference between basal [Ca 2+ ] i of interphase and mitotic cells was detected. However, mitotic cells showed a rapid elevation of [Ca 2+ ] i from basal levels of 130 n M to 500 to 800 n M at the metaphase-anaphase transition. The [Ca 2+ ] i transient was brief, lasting approximately 20 seconds and the elevated [Ca 2+ ] i appeared uniformly distributed over the entire spindle and central region of the cell. The close temporal association of the [Ca 2+ ] i transient with the onset of anaphase suggests that calcium may have a signaling role in this event.

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Metadata

Authors
Poenie, M., Alderton, J., Steinhardt, R., & Tsien, R.
Venue
Science
Published
1986-08-22
Volume
233
Issue
4766
Pages
886-889
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2088233139
Cited by
539
References
0
FWCI
27.65
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Calcium Rises Abruptly and Briefly Throughout the Cell at the Onset of Anaphase. https://app.cochat.ai/papers/10.1126/science.3755550
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Poenie, M., Alderton, J., Steinhardt, R., & Tsien, R. (1986). Calcium Rises Abruptly and Briefly Throughout the Cell at the Onset of Anaphase. Science. https://doi.org/10.1126/science.3755550

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