ArticleThe Journal of cell biology1980
Contractile basis of ameboid movement. VII. Aequorin luminescence during ameboid movement, endocytosis, and capping.
Article in The Journal of cell biology, 1980. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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Who cites it
40 citing papers in PubMed.
- Aspects of plant intelligence (ii).Plant signaling & behavior · 2026Review
- How filopodia respond to calcium in the absence of a calcium-binding structural protein: non-channel functions of TRP.Cell communication and signaling : CCS · 2022Article
- STIM-Orai1 signaling regulates fluidity of cytoplasm during membrane blebbing.Nature communications · 2021Article
- From damage response to action potentials: early evolution of neural and contractile modules in stem eukaryotes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016Review
- Reconstruction of active regular motion in amoeba extract: dynamic cooperation between sol and gel states.PloS one · 2013Article
- Locomotive mechanism of Physarum plasmodia based on spatiotemporal analysis of protoplasmic streaming.Biophysical journal · 2008Article
- Ca(2+) signalling is not required for chemotaxis in Dictyostelium.The EMBO journal · 2000Article
- A fluorescent protein biosensor of myosin II regulatory light chain phosphorylation reports a gradient of phosphorylated myosin II in migrating cells.Molecular biology of the cell · 1995Article
- Polarized ion transport during migration of transformed Madin-Darby canine kidney cells.Pflugers Archiv : European journal of physiology · 1995Article
- Electric field-directed fibroblast locomotion involves cell surface molecular reorganization and is calcium independent.The Journal of cell biology · 1994Article
- Mediation of chemoattractant-induced changes in [Ca2+]i and cell shape, polarity, and locomotion by InsP3, DAG, and protein kinase C in newt eosinophils.The Journal of cell biology · 1994Article
- In vitro models of tail contraction and cytoplasmic streaming in amoeboid cells.The Journal of cell biology · 1993Article
- Gradients in the concentration and assembly of myosin II in living fibroblasts during locomotion and fiber transport.Molecular biology of the cell · 1993Article
- Relative distribution of actin, myosin I, and myosin II during the wound healing response of fibroblasts.The Journal of cell biology · 1993Article
- Identification and molecular characterization of a Salmonella typhimurium gene involved in triggering the internalization of salmonellae into cultured epithelial cells.Proceedings of the National Academy of Sciences of the United States of America · 1992Article
- Detection of extracellular calcium gradients with a calcium-specific vibrating electrode.The Journal of cell biology · 1990Article
- Mechanics and control of the cytoskeleton in Amoeba proteus.Biophysical journal · 1989Article
- Prostaglandins may play a signal-coupling role during phagocytosis in Amoeba proteus.Cell and tissue research · 1989Article
- The dynamic distribution of fluorescent analogues of actin and myosin in protrusions at the leading edge of migrating Swiss 3T3 fibroblasts.The Journal of cell biology · 1988Article
- Relationship of free intracellular calcium to the cytolytic activity of Entamoeba histolytica.Infection and immunity · 1988Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aequorin luminescence has been utilized to determine the spatial and temporal fluctuations of the free calcium ion concentration [Ca++] in Chaos carolinensis during ameboid movement, pinocytosis, and capping. The [Ca++] increases above approximately 10(-7) M during normal ameboid movement. Three types of luminescent signals are detected in cells: continuous luminescence, spontaneous pulses, and stimulated pulses. Continuous luminescence is localized in the tails of actively motile cells, and spontaneous pulses occur primarily over the anterior regions of cells. We are sometimes able to correlate the spontaneous pulses with extending pseudopods, whereas stimulated pulses are induced by mechanical damage, electrical stimulation, concanavalin A-induced capping, and pinocytosis. The localization of both distinct actin structures and sites where [Ca++] increases suggests cellular sites of contractile activity. The independent evidence from localizing actin structures and the distribution of [Ca++] can also be viewed in relation to the solation-contraction coupling hypothesis defined in vitro.
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