The terminal amino acids of protein sequences and protein maturation

John A. Black, Peter Stenzel, Richard N. Harkins

Research output: Contribution to journalArticle

Abstract

A comparison is made of the N- and C-terminal amino acids from 96 published protein sequences, 26 from prokaryotes, 70 from eukaryotes. The observed frequencies of the N-terminal amino acids methionine, alanine and serine in prokaryotes, and alanine and serine in eukaryotes are significantly higher than expected for a random arrangement of amino acids. At the C-terminal end, the observed frequencies of lysine, asparagine and glutamine in prokaryotes and phenylalanine, asparagine and glutamine in eukaryotes exceed random expectation. These results could be explained by specific proteolytic cleavage during protein synthesis.

Original languageEnglish (US)
Pages (from-to)161-166
Number of pages6
JournalJournal of Theoretical Biology
Volume50
Issue number1
DOIs
StatePublished - Mar 1975

ASJC Scopus subject areas

  • Statistics and Probability
  • Modeling and Simulation
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Agricultural and Biological Sciences(all)
  • Applied Mathematics

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