کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10582562 | 981052 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and functional analysis of deferriferrichrysin derivatives: Application to colorimetric pH indicators
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Deferriferrichrysin belongs to the siderophore peptide family which are Fe(III)-coordinating cyclic peptides. The common structure of this family is three consecutive hydroxamate moieties, such as Nδ-acetyl-Nδ-hydroxy-l-ornithine (Aho). We have designed two deferriferrichrysin derivatives where three Aho residues were arranged as: cyclo(-Aho-Gly-Aho-Gly-Aho-Gly-) and cyclo(-Aho-Ser-Aho-Ser-Aho-Ser-). Comparative evaluation of the physicochemical properties of their Fe(III) complexes revealed that naturally occurring deferriferrichrysin formed a more stable Fe(III) complex when compared with the two derivatives. This result shows that three consecutive Aho residues are indispensable for high affinity Fe(III) binding by deferriferrichrysin. Of note, the observed pH-dependent chromogenic response of the Fe(III) complexes of the derivatives suggests that these two derivatives should function as sensitive pH indicators in acidic environments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioorganic & Medicinal Chemistry - Volume 21, Issue 14, 15 July 2013, Pages 4296-4300
Journal: Bioorganic & Medicinal Chemistry - Volume 21, Issue 14, 15 July 2013, Pages 4296-4300
نویسندگان
Yuka Kobayashi, Shinya Oishi, Kazuya Kobayashi, Hiroaki Ohno, Hiroko Tsutsumi, Yoji Hata, Nobutaka Fujii,