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Studies of Amyloid-Like Fibrillogenesis through β-Sheet-Mediated Self-Assembly of Short Synthetic Peptides
被引:5
|作者:
Dutt, Anita
[1
]
Spencer, Elinor C.
[2
]
Howard, Judith A. K.
[2
]
Pramanik, Animesh
[1
]
机构:
[1] Univ Calcutta, Dept Chem, Kolkata 700009, W Bengal, India
[2] Univ Durham, Dept Chem, Durham DH1 3LE, England
关键词:
OMEGA-AMINO ACIDS;
SOLID-STATE;
FIBRIL FORMATION;
PARKINSONS-DISEASE;
ALPHA-SYNUCLEIN;
LEWY BODIES;
HELIX;
CONFORMATION;
PROTEINS;
PARALLEL;
D O I:
10.1002/cbdv.200900050
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Three structurally different types of small peptides, namely, i) Boc-Ile-Aib-Ile-OMe (Aib=alpha-aminoisobutyric acid), ii) Boc-Xx-m-aminobenzoic acid (Xx=beta-Ala and gamma-aminobutyric acid), and iii) Boc-Xx-m-nitroaniline, were found to exhibit beta-sheet-mediated fibrillogenesis in the solid state, revealed by FT-IR, single-crystal X-ray diffraction, and FE-SEM studies. Interestingly, the fibrils grown from peptides 2 and 3 were found to bind with the physiological dye Congo red, a characteristic feature of amyloid fibrils.
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页码:363 / 375
页数:13
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