Role of amino acid residues surrounding the phosphorylation site in peptide substrates of G protein-coupled receptor kinase 2 (GRK2)

Daisuke Asai, Masaharu Murata, Riki Toita, Takahito Kawano, Hideki Nakashima, Jeong Hun Kang

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    A series of amino acid substitutions was made in a previously identified β-tubulin-derived GRK2 substrate peptide (404DEMEFTEAESNMN416) to examine the role of amino acid residues surrounding the phosphorylation site. Anionic amino acid residues surrounding the phosphorylation site played an important role in the affinity for GRK2. Compared to the original peptide, a modified peptide (Ac-EEMEFSEAEANMN-NH2) exhibited markedly higher affinity for GRK2, but very low affinity for GRK5, suggesting that it can be a sensitive and selective peptide for GRK2.

    Original languageEnglish
    Pages (from-to)2875-2880
    Number of pages6
    JournalAmino Acids
    Volume48
    Issue number12
    DOIs
    Publication statusPublished - Dec 1 2016

    All Science Journal Classification (ASJC) codes

    • Biochemistry
    • Clinical Biochemistry
    • Organic Chemistry

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