Engineering β-sheets employing N-methylated heterochiral amino acids.
Engineering β-sheets employing N-methylated heterochiral amino acids.
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使用N-甲基化杂色氨基酸的工程β-折叠。
DOI:
10.1039/c6sc00518g
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发表时间:
2016-08-01
期刊:
影响因子:
8.4
通讯作者:
Chatterjee J
中科院分区:
文献类型:
--
作者:
Ghosh D;Lahiri P;Verma H;Mukherjee S;Chatterjee J
Engineerable β-turn motif is reported that modulates the extent of right-handed twist in β-sheets. There is a lack of functional group diversity in the reverse turn motifs nucleating a β-sheet conformation in designed peptides, proteins and foldamers. The majority of these sequences consist of d-Pro–l-Pro, d-Pro–Gly or Asn–Gly as the turn inducing motif restricting their biological application and physicochemical modulation. In this report, for the first time we elucidate that N-methylation of heterochiral amino acids in linear peptides nucleates β-sheet conformation without the necessity of having a ring or covalent constraint at the reverse turn. Our results show that d-Pro can be conveniently substituted by any other N-methylated d-amino acid followed by an N-methylated l-amino acid or sarcosine to adopt a βII′ turn inducing the β-sheet folding. Furthermore, we reveal that a single amino acid either at the i + 1 or i + 2 site of the reverse turn can modulate the right-handed twist, which eventually dictates the extent of the foldedness of the β-hairpin.
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影响因子:
15
作者:
Beck, Johannes G.;Chatterjee, Jayanta;Kessler, Horst
通讯作者:
Kessler, Horst
DOI:
10.1002/anie.201006652
发表时间:
2011-02-11
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Micklitsch CM;Knerr PJ;Branco MC;Nagarkar R;Pochan DJ;Schneider JP
通讯作者:
Schneider JP
影响因子:
15
作者:
Chung, YJ;Huck, BR;Gellman, SH
通讯作者:
Gellman, SH
影响因子:
15
作者:
Culik, Robert M.;Jo, Hyunil;DeGrado, William F.;Gai, Feng
通讯作者:
Gai, Feng
影响因子:
15
作者:
CHALMERS, DK;MARSHALL, GR
通讯作者:
MARSHALL, GR