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這是一個突變的β-淀粉樣蛋白1-28個氨基酸的序列,其中KLVFF序列(Ab16-20)被AAVFA取代
編號:434174
CAS號:
單字母:H2N-DAEFRHDSGYEVHHQAAVFAAEDVGSNK-OH
這是一個突變的β-淀粉樣蛋白1-28個氨基酸的序列,其中KLVFF序列(Ab16-20)被AAVFA取代。KLVFF是最短的肽,對全長Aβ顯示出一致的高結(jié)合能力。第一、第二和第五個殘基(即KLXXF)對于結(jié)合是關(guān)鍵的。該Aβ(1-28)氨基酸序列在16-20區(qū)的取代嚴(yán)重?fù)p害了肽聚集和形成淀粉樣原纖維的能力。
This is a mutated β-Amyloid 1 to 28 amino acids sequence in which the KLVFF sequence (Ab16-20) is substituted with AAVFA. The KLVFF is the shortest peptide displaying consistent high binding capacity to full-length Aβ. The first, second, and fifth residues (i.e. KLXXF) are critical for binding. The substitutions in this Aβ (1-28) amino acids sequence in the 16 to 20 region profoundly impair the ability of the peptide to aggregate and form amyloid-like fibrils.
Tjernberg, L. et al. J. Biol. Chem. 271, 8545 (1996).