Electron microscopy of glutamine synthetase from pea leaf chloroplasts

V. L. Tsuprun, T. G. Samsonidze, N. A. Radukina, A. V. Pushkin, Z. G. Evstigneeva, W. L. Kretovich

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


The structure of pea leaf chloroplast glutamine synthetase was studied by electron microscopy. The enzyme is shown to consist of eight elongated subunits which are arranged with point 42 symmetry at the vertices of two squares. These squares are twisted about the 4-fold axis at 40° relative to each other.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalBBA - Protein Structure
Issue number1
StatePublished - Nov 20 1980


  • (Pea leaf chloroplast)
  • Electron microscopy
  • Enzyme structure
  • Glutamine synthetase


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