کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1257542 971567 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electron transfer in peptides and proteins
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Electron transfer in peptides and proteins
چکیده انگلیسی

Proteins and peptides use their amino acids as medium for electron-transfer reactions that occur either in single-step superexchange or in multistep hopping processes. Whereas the rate of the single-step electron transfer dramatically decreases with the distance, a hopping process is less distance dependent. Electron hopping is possible if amino acids carry oxidizable side chains, like the phenol group in tyrosine. These side chains become intermediate charge carriers. Because of the weak distance dependency of hopping processes, fast electron transfer over very long distances occurs in multistep reactions, as in the enzyme ribonucleotide reductase.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Opinion in Chemical Biology - Volume 12, Issue 6, December 2008, Pages 755–759
نویسندگان
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