Cited by 367Protein Kinase Regulation and GTPase SignalingLipid Membrane Structure and BehaviorSphingolipid Metabolism and Signaling

Cooperative roles of various membrane phospholipids in the activation of calcium-activated, phospholipid-dependent protein kinase.

Open access
Kaibuchi, K., Takai, Y., Nishizuka, Y.·1981·Journal of Biological Chemistry

Abstract

Although phosphatidylserine is the sole phospholipid effective for the activation of Ca2+-activated, phospholipid-dependent protein kinase in the presence of a small amount of unsaturated diacylglycerol and micromolar concentrations of Ca2+ (Takai, Y., Kishimoto, A., Kikkawa, U., Mori, T., and Nishizuka, Y. (1979) Biochem. Biophys. Res. Commun. 91, 1218-1224), other species of phospholipids modulate the activation of enzyme considerably. When phosphatidylserine is supplemented with phosphatidylethanolamine, further enhancement of the enzymatic activity is observed. Inversely, the addition of phosphatidylcholine or sphingomyelin markedly diminishes the enzyme activation by phosphatidylserine. Phosphatidylinositol, which serves as the source of unsaturated diacylglycerol, and phosphatidic acid do not show significant effects. Kinetic analysis has indicated that phosphatidylethanolamine enhances the enzyme activation by marked increase in the affinity of enzyme for Ca2+ and also by slight increase in the affinity for phosphatidylserine as well as for unsaturated diacylglycerol without affecting the maximum reaction velocity. Phosphatidylcholine and sphingomyelin diminish the enzyme activation in an uncompetitive manner with respect to Ca2+ and in a competitive manner with respect to both phosphatidylserine and unsaturated diacylglycerol. These results suggest that each species of the various membrane phospholipids plays a specific role with positive or negative cooperativity in the activation of this unique protein kinase.

Integrity signals

Registry

Crossref · 10.1016/s0021-9258(19)68938-6

Cites

25 of 25 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Kaibuchi, K., Takai, Y., & Nishizuka, Y.
Affiliations
National Institute for Basic Biology (JP)
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1981-07
Volume
256
Issue
14
Pages
7146-7149
ISSN
0021-9258 (ISSN-L)
OpenAlex
W191339276
Cited by
367
References
25
Citations by year
2026: 1 · 2023: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2016: 2 · 2015: 2 · 2014: 1 · 2013: 1 · 2012: 2
FWCI
9.78
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sphingolipid Metabolism and Signaling
Keywords
phospholipid-dependent protein kinase, phosphatidylserine, phosphatidylethanolamine, phosphatidylcholine, sphingomyelin, phosphatidylinositol, phosphatidic acid, enzyme activation, calcium affinity, cooperative enzyme kinetics, membrane phospholipids
MeSH terms
Animals, Brain, Calcium, Cell Membrane, Enzyme Activation, Kinetics, Membrane Lipids, Phospholipids, Protein Kinases, Structure-Activity Relationship, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review