Cited by 65Protein Kinase Regulation and GTPase SignalingChemical Synthesis and AnalysisSignaling Pathways in Disease

Critical amino acid residues of AIP, a highly specific inhibitory peptide of calmodulin‐dependent protein kinase II

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Ishida, Atsuhiko, Shigeri, Yasushi, Tatsu, Yoshiro, Uegaki, Koichi, Kameshita, Isamu, Okuno, Sachiko, Kitani, Takako, Yumoto, Noboru +1 more·1998·FEBS Letters

Abstract

The importance of the individual amino acid residues of AIP (KKALRRQEAVDAL), a highly specific inhibitor of calmodulin‐dependent protein kinase II (CaMKII), was studied. Replacement of Arg 6, Gln 7, or Ala 9 by other amino acid residues produced a marked increase in the IC 50 value. Leu 4 and Val 10 were also sensitive to replacement, but some hydrophobic amino acids could substitute for these residues. Although replacement of Ala 3, Glu 8, Ala 12, and Leu 13 by other residues produced no significant increase in the IC 50, the substitution of Lys for Ala 3 decreased the IC 50. An AIP analog (KK LRRQEA DAY), in which Ala 3 and Val 10 were replaced with Lys and Phe, respectively, showed an IC 50 value as low as 4 nM, suggesting that it is a useful tool for studying the physiological roles of CaMKII.

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Crossref · 10.1016/s0014-5793(98)00405-0

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  • CaMKIINtides inhibit kinase activity with high affinity by binding across the entire substrate binding site and therefore also block GluN2B binding.

    “They inhibit kinase activity with high affinity by binding across the entire substrate binding site (FIGURE 2B7) (61, 147, 153), and therefore also block GluN2B binding (152, 154).”

    From Synaptic memory and CaMKII (2023) · cites this paper as [147]

    The Results and discussion report that AIP potently inhibits CaMKII and binds a substrate-binding site. The paper studies AIP, not CaMKIINtides, and does not establish binding across the entire substrate-binding site. The citing sentence attaches different references to the GluN2B claim, so that part is not attributed to this source. (LLM, conf=0.84)

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Authors
Ishida, A., Shigeri, Y., Tatsu, Y., Uegaki, K., Kameshita, I., Okuno, S., Kitani, T., Yumoto, N., & Fujisawa, H.
Affiliations
  • Asahikawa Medical University (JP)
  • National Institute of Advanced Industrial Science and Technology (JP)
Corresponding author
Fujisawa, Hitoshi
Venue
FEBS Letters
Publisher
Wiley
Published
1998-05
Volume
427
Issue
1
Pages
115-118
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W2055847058
Cited by
64
References
23
Citations by year
2024: 3 · 2023: 1 · 2022: 4 · 2021: 2 · 2020: 1 · 2019: 1 · 2017: 3 · 2016: 2 · 2015: 1 · 2014: 1 · 2013: 2 · 2012: 4
FWCI
0.93
Type
journal article
Language
en
Open access
Locations
  • FEBS Letters (publishedVersion)
  • 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 › Chemical Synthesis and Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
Keywords
calcium/calmodulin-dependent protein kinase II, CaMKII inhibitor, peptide inhibitors, amino acid substitutions, site-directed mutagenesis, IC50, peptide analogues
MeSH terms
Animals, Cerebral Cortex, Peptide Fragments, Peptides, Structure-Activity Relationship, Calcium-Calmodulin-Dependent Protein Kinases, Rats, Calcium-Calmodulin-Dependent Protein Kinase Type 2

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