The substrate specificity of adenosine 3'

5' cyclic monophosphate dependent protein kinase of rabbit skeletal muscle

S. J. Yeaman, P. Cohen, D. C. Watson, G. H. Dixon

    Research output: Contribution to journalArticle

    79 Citations (Scopus)

    Abstract

    The known amino acid sequences at the two sites on phosphorylase kinase that are phosphorylated by cyclic AMP dependent protein kinase were extended. The sequences of 42 amino acids around the phosphorylation site on the α subunit and of 14 amino acids around the phosphorylation site on the β subunit were shown to be: α subunit Phe Arg Arg Leu Ser(P) Ile Ser Thr Glu Ser Glx Pro Asx Gly Gly His Ser Leu Gly Ala Asp Leu Met Ser Pro Ser Phe Leu Ser Pro Gly Thr Ser Val Phe(Ser,Pro,Gly)His Thr Ser Lys; β subunit, Ala Arg Thr Lys Arg Ser Gly Ser(P) Val/Ile Tyr Glu Pro Leu Lys. The sites on histone H2B which are phosphorylated by cyclic AMP dependent protein kinase in vitro were identified as serine 36 and serine 32. The amino acid sequence in this region is: Lys Lys Arg Lys Arg Ser(P) Arg Lys Glu Ser(P) Tyr Ser Val Tyr Val [Iwai, K., Ishikawa, K, & Hayashi, H. (1970) Nature (London) 226, 1056 - 1058]. Serine 36 was phosphorylated at 50% of the rate at which the β subunit of phosphorylase kinase was phosphorylated, and it was phosphorylated 6-7 fold more rapidly than was serine 32. The amino acid sequences when compared with those at the phosphorylation sites of other physiological substrates suggest that the presence of two adjacent basic amino acids on the N terminal side of the susceptible serine residue may be critical for specific substrate recognition in vivo.

    Original languageEnglish
    Pages (from-to)411-421
    Number of pages11
    JournalBiochemical Journal
    Volume162
    Issue number2
    DOIs
    Publication statusPublished - 1 Jan 1977

    Fingerprint

    Substrate Specificity
    Adenosine
    Protein Kinases
    Serine
    Muscle
    Skeletal Muscle
    Phosphorylation
    Amino Acid Sequence
    Rabbits
    Amino Acids
    Phosphorylase Kinase
    Substrates
    Cyclic AMP-Dependent Protein Kinases
    Basic Amino Acids
    Viperidae
    Histones
    Cyclic AMP

    Cite this

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    abstract = "The known amino acid sequences at the two sites on phosphorylase kinase that are phosphorylated by cyclic AMP dependent protein kinase were extended. The sequences of 42 amino acids around the phosphorylation site on the α subunit and of 14 amino acids around the phosphorylation site on the β subunit were shown to be: α subunit Phe Arg Arg Leu Ser(P) Ile Ser Thr Glu Ser Glx Pro Asx Gly Gly His Ser Leu Gly Ala Asp Leu Met Ser Pro Ser Phe Leu Ser Pro Gly Thr Ser Val Phe(Ser,Pro,Gly)His Thr Ser Lys; β subunit, Ala Arg Thr Lys Arg Ser Gly Ser(P) Val/Ile Tyr Glu Pro Leu Lys. The sites on histone H2B which are phosphorylated by cyclic AMP dependent protein kinase in vitro were identified as serine 36 and serine 32. The amino acid sequence in this region is: Lys Lys Arg Lys Arg Ser(P) Arg Lys Glu Ser(P) Tyr Ser Val Tyr Val [Iwai, K., Ishikawa, K, & Hayashi, H. (1970) Nature (London) 226, 1056 - 1058]. Serine 36 was phosphorylated at 50{\%} of the rate at which the β subunit of phosphorylase kinase was phosphorylated, and it was phosphorylated 6-7 fold more rapidly than was serine 32. The amino acid sequences when compared with those at the phosphorylation sites of other physiological substrates suggest that the presence of two adjacent basic amino acids on the N terminal side of the susceptible serine residue may be critical for specific substrate recognition in vivo.",
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    The substrate specificity of adenosine 3' : 5' cyclic monophosphate dependent protein kinase of rabbit skeletal muscle. / Yeaman, S. J.; Cohen, P.; Watson, D. C.; Dixon, G. H.

    In: Biochemical Journal, Vol. 162, No. 2, 01.01.1977, p. 411-421.

    Research output: Contribution to journalArticle

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