934 resultados para Schell family (John Schell, fl. 1782)


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Published anonymously.

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Mode of access: Internet.

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"Pedigree of Stradling of St. Donat's of Glamorganshire": p. xvii-xxiii.

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Each volume has also a special title page.

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The notes signed E. A. V. are those left by Madame Venturi, who for some years before her death had been engaged upon copying and annotating the letters.

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"Account of the life of ... John Lightfoot": v. 1, p. [43]-125.

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The cyclotides are a recently discovered family of miniproteins that contain a head-to-tail cyclized backbone and a knotted arrangement of disulfide bonds. They are approximately 30 amino acids in size and are present in high abundance in plants from the Violaceae, Rubiaceae, and Cucurbitaceae families, with individual plants containing a suite of up to 100 cyclotides. They have a diverse range of biological activities, including uterotonic, anti-HIV, antitumor, and antimicrobial activities, although their natural function is likely that of defending their host plants from pathogens and pests. This review focuses on the structural aspects of cyclotides, which may be thought of as a natural combinatorial peptide template in which a wide range of amino acids is displayed on a compact molecular core made up of the cyclic cystine knot structural motif. Cyclotides are exceptionally stable and are resistant to denaturation via thermal, chemical, or enzymatic treatments. The struclural features that contribute to their remarkable stability are described ill this review. (c) 2006 Wiley Periodicals, Inc.