Cited by 217Microtubule and mitosis dynamicsCancer Treatment and PharmacologyGenetic and Kidney Cyst Diseases

Bovine brain kinesin is a microtubule-activated ATPase

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Kuznetsov, S A, Gelfand, V I·1986·Proceedings of the National Academy of Sciences

Abstract

Recently, a protein called kinesin was described, which is capable of inducing movement of inert particles along microtubules. To purify this protein from bovine brain, we used the ability of kinesin to bind to taxol-stabilized microtubules in the presence of inorganic tripolyphosphate. The brain kinesin preparation contained one major polypeptide of 135 kDa and four minor polypeptides of 45-70 kDa. The minor polypeptides were eluted from a gel-permeation chromatography column at the same position as the major component. All the polypeptides of the preparation were capable of binding to the microtubules under identical conditions. The kinesin molecule is most probably a complex of these polypeptides. Brain kinesin had a very low ATPase activity (0.06-0.08 mumol X min-1 X mg-1 in 3 mM Mg2+ at pH 6.7). ATPase activity was strongly stimulated by microtubules (Vmax = 4.6 mumol per min per mg of kinesin). Microtubule-activated kinesin ATPase had a Km for ATP between 10 and 12 X 10(-6) M and a Kapp for microtubules (i.e., polymerized tubulin concentration required for a half-maximal activation) of 12-14 X 10(-6) M. Kinesin had a significant ATPase activity even without microtubules if 2 mM Ca2+ was substituted for Mg2+ (Vmax = 1.6 mumol X min-1 X mg-1; Km = 800 X 10(-6) M). Kinesin is therefore a mechanochemical ATPase that is activated by microtubules.

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Crossref · 10.1073/pnas.83.22.8530

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  • Kinesin is commonly purified at pH 6.6-6.8, whereas the lysates in this study were analyzed at pH 7.2-7.4.

    “since kinesin is commonly purified at pH 6.6–6.8 (Kuznetsov and Gelfand, 1986; Hackney, 1988; Wagner et al., 1989, 1991), whereas our lysates were analyzed at pH 7.2–7.4.”

    From Light Chain– dependent Regulation of Kinesin's Interaction with Microtubules (1998) · cites this paper as Kuznetsov and Gelfand, 1986

  • Purification of kinesin is performed at the nonphysiological pH of 6.6-6.8.

    “Purification of kinesin is performed at the nonphysiological pH of 6.6–6.8 (Kuznetsov and Gelfand, 1986; Wagner et al., 1989, 1991; Hackney, 1991).”

    From Light Chain– dependent Regulation of Kinesin's Interaction with Microtubules (1998) · cites this paper as Kuznetsov and Gelfand, 1986

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Authors
Kuznetsov, S. A., & Gelfand, V. I.
Affiliations
Lomonosov Moscow State University (RU)
Venue
Proceedings of the National Academy of Sciences
Published
1986-11
Volume
83
Issue
22
Pages
8530-8534
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2007253244
Cited by
217
References
17
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 1 · 2022: 3 · 2021: 1 · 2020: 1 · 2018: 1 · 2017: 2 · 2016: 3 · 2012: 3
FWCI
10.17
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Health Sciences › Medicine › Oncology › Cancer Treatment and Pharmacology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
Keywords
kinesin, bovine brain, microtubule binding, taxol-stabilized microtubules, ATPase activity
MeSH terms
Adenosine Triphosphatases, Adenosine Triphosphate, Adenylyl Imidodiphosphate, Animals, Brain Chemistry, Cattle, Enzyme Activation, Hydrolysis, Kinetics, Microtubule Proteins, Microtubules, Nerve Tissue Proteins, Polyphosphates, Kinesins

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