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Cover Picture: NMR Structure of the Single QALGGH Zinc Finger Domain from the Arabidopsis thaliana SUPERMAN Protein (ChemBioChem 2-3/2003)
The cover picture shows the NMR structure of the SUPERMAN zinc finger domain, which is the first high-resolution structure of a classical zinc finger domain from a plant protein. The structure consists of a very well-defined ββα motif, typical of all the other Cys2–His2 zinc fingers so far structurally characterized. As a consequence, the QALGGH sequence, which is highly conserved in plant protein classical zinc finger domains, is located at the N terminus of the α helix. Interestingly, this domain region, in animal protein zinc fingers, is constituted of hypervariable residues deputed to the recognition of the DNA bases. Therefore, a peculiar DNA recognition code for the QALGGH zinc finger domain is proposed in the article by Fattorusso and co-workers on p. 171 ff.