The mechanism of Q-enzyme action and its influence on the structure of amylopectin

Dov Borovsky, Eric E. Smith, William J. Whelan, Dexter French, Shoichi Kikumoto

Research output: Contribution to journalArticle

52 Scopus citations

Abstract

Q-Enzyme is responsible for the synthesis of the 1,6-branch linkages in amylopectin. Its action on a model amylodextrin containing a single branch linkage has been studied. It is concluded that the enzymic process whereby the branch linkages of amylopectin are synthesized is a random action of the branching enzyme on a complex-possibly a double helix-formed between two 1,4-α-glucan chains. This action pattern predicts a novel arrangement of the units chains in amylopectin.

Original languageEnglish (US)
Pages (from-to)627-631
Number of pages5
JournalArchives of Biochemistry and Biophysics
Volume198
Issue number2
DOIs
StatePublished - Dec 1979

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology

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