Abstract
Using a new immunocytochemical technique, we have visualized the spatial arrangement of those microtubules in cells that are stable to biotin-tubulin incorporation after microinjection. Cells fixed at various periods of time after injection were exposed to antibody to biotinylated tubulin and several layers of secondary antibodies; these layers prevented reaction of biotin-containing microtubules with antitubulin antibodies. The microtubules that had not incorporated biotin-tubulin could then be stained with anti-tubulin and a fluorescent secondary antibody. In BSC1 cells, most microtubules in the cell exchange with a half-time of 10 min. A separate population of microtubules can be detected, using the above techniques, that are stable to exchange for 1 h or more; these have a characteristic pericentrosomal spatial arrangement as compared to the majority of dynamic microtubules. Unlike the dynamic microtubules, most of the stable microtubules are nongrowing. The average BSC-1 cell contains approximately 700 microtubules: approximately 500 growing at 4 micron min-1, 100 shrinking at approximately 20 micron min-1, and approximately 100 that are relatively more stable to exchange. The potential significance of these stable microtubules is discussed.
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- Behnke O., Forer A. Evidence for four classes of microtubules in individual cells. J Cell Sci. 1967 Jun;2(2):169–192. doi: 10.1242/jcs.2.2.169. [DOI] [PubMed] [Google Scholar]
- Bluestein H. G. Neurocytotoxic antibodies in serum of patients with systemic lupus erythematosus. Proc Natl Acad Sci U S A. 1978 Aug;75(8):3965–3969. doi: 10.1073/pnas.75.8.3965. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bradford M. M. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem. 1976 May 7;72:248–254. doi: 10.1016/0003-2697(76)90527-3. [DOI] [PubMed] [Google Scholar]
- Cassimeris L. U., Wadsworth P., Salmon E. D. Dynamics of microtubule depolymerization in monocytes. J Cell Biol. 1986 Jun;102(6):2023–2032. doi: 10.1083/jcb.102.6.2023. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Graessmann A., Graessmann M., Mueller C. Microinjection of early SV40 DNA fragments and T antigen. Methods Enzymol. 1980;65(1):816–825. doi: 10.1016/s0076-6879(80)65076-9. [DOI] [PubMed] [Google Scholar]
- Graessmann M., Graessman A. "Early" simian-virus-40-specific RNA contains information for tumor antigen formation and chromatin replication. Proc Natl Acad Sci U S A. 1976 Feb;73(2):366–370. doi: 10.1073/pnas.73.2.366. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gundersen G. G., Kalnoski M. H., Bulinski J. C. Distinct populations of microtubules: tyrosinated and nontyrosinated alpha tubulin are distributed differently in vivo. Cell. 1984 Oct;38(3):779–789. doi: 10.1016/0092-8674(84)90273-3. [DOI] [PubMed] [Google Scholar]
- Heath J. P. Direct evidence for microfilament-mediated capping of surface receptors on crawling fibroblasts. Nature. 1983 Apr 7;302(5908):532–534. doi: 10.1038/302532a0. [DOI] [PubMed] [Google Scholar]
- Horio T., Hotani H. Visualization of the dynamic instability of individual microtubules by dark-field microscopy. Nature. 1986 Jun 5;321(6070):605–607. doi: 10.1038/321605a0. [DOI] [PubMed] [Google Scholar]
- Kirschner M., Mitchison T. Beyond self-assembly: from microtubules to morphogenesis. Cell. 1986 May 9;45(3):329–342. doi: 10.1016/0092-8674(86)90318-1. [DOI] [PubMed] [Google Scholar]
- Kristofferson D., Mitchison T., Kirschner M. Direct observation of steady-state microtubule dynamics. J Cell Biol. 1986 Mar;102(3):1007–1019. doi: 10.1083/jcb.102.3.1007. [DOI] [PMC free article] [PubMed] [Google Scholar]
- LeDizet M., Piperno G. Cytoplasmic microtubules containing acetylated alpha-tubulin in Chlamydomonas reinhardtii: spatial arrangement and properties. J Cell Biol. 1986 Jul;103(1):13–22. doi: 10.1083/jcb.103.1.13. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mitchison T. J., Kirschner M. W. Properties of the kinetochore in vitro. II. Microtubule capture and ATP-dependent translocation. J Cell Biol. 1985 Sep;101(3):766–777. doi: 10.1083/jcb.101.3.766. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mitchison T., Kirschner M. Dynamic instability of microtubule growth. Nature. 1984 Nov 15;312(5991):237–242. doi: 10.1038/312237a0. [DOI] [PubMed] [Google Scholar]
- Mitchison T., Kirschner M. Microtubule assembly nucleated by isolated centrosomes. Nature. 1984 Nov 15;312(5991):232–237. doi: 10.1038/312232a0. [DOI] [PubMed] [Google Scholar]
- Saxton W. M., Stemple D. L., Leslie R. J., Salmon E. D., Zavortink M., McIntosh J. R. Tubulin dynamics in cultured mammalian cells. J Cell Biol. 1984 Dec;99(6):2175–2186. doi: 10.1083/jcb.99.6.2175. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schulze E., Kirschner M. Microtubule dynamics in interphase cells. J Cell Biol. 1986 Mar;102(3):1020–1031. doi: 10.1083/jcb.102.3.1020. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Soltys B. J., Borisy G. G. Polymerization of tubulin in vivo: direct evidence for assembly onto microtubule ends and from centrosomes. J Cell Biol. 1985 May;100(5):1682–1689. doi: 10.1083/jcb.100.5.1682. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sternlicht H., Ringel I. Colchicine inhibition of microtubule assembly via copolymer formation. J Biol Chem. 1979 Oct 25;254(20):10540–10550. [PubMed] [Google Scholar]
- Vale R. D., Reese T. S., Sheetz M. P. Identification of a novel force-generating protein, kinesin, involved in microtubule-based motility. Cell. 1985 Aug;42(1):39–50. doi: 10.1016/s0092-8674(85)80099-4. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Weingarten M. D., Lockwood A. H., Hwo S. Y., Kirschner M. W. A protein factor essential for microtubule assembly. Proc Natl Acad Sci U S A. 1975 May;72(5):1858–1862. doi: 10.1073/pnas.72.5.1858. [DOI] [PMC free article] [PubMed] [Google Scholar]