Structure of a paralytic peptide from an insect, Manduca sexta.
Structure of a paralytic peptide from an insect, Manduca sexta.
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来自昆虫 Manduca sexta 的麻痹肽的结构。
DOI:
10.1034/j.1399-3011.1999.00136.x
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Kanost,MR
中科院分区:
文献类型:
--
作者:
Yu,XQ;Prakash,O;Kanost,MR
Paralytic peptide 1 (PP1) from a moth,Manduca sexta, is a 23‐residue peptide (Glu‐Asn‐Phe‐Ala‐Gly‐Gly‐Cys‐Ala‐Thr‐Gly‐Tyr‐Leu‐Arg‐Thr‐Ala‐Asp‐Gly‐Arg‐Cys‐Lys‐Pro‐Thr‐Phe) that was first found to have paralytic activity when injected intoM. sextalarvae. Recent studies demonstrated that PP1 also stimulated the spreading and aggregation of a blood cell type called plasmatocytes and inhibited bleeding from wounds. We determined the solution structure of PP1 by two‐dimensional1H NMR spectroscopy to begin to understand structural–functional relationships of this peptide. PP1 has an ordered structure, which is composed of a short antiparallel β‐sheet at residues Tyr11‐Thr14and Arg18‐Pro21, three β turns at residues Phe3‐Gly6, Ala8‐Tyr11and Thr14‐Gly17, and a half turn at the carboxyl‐terminus (residues Lys20‐Phe23). The well‐defined secondary and tertiary structure was stabilized by hydrogen bonding and side‐chain hydrophobic interactions. In comparison with two related insect peptides, whose structures have been solved recently, the amino‐terminal region of PP1 is substantially more ordered. The short antiparallel β‐sheet of PP1 has a folding pattern similar to the carboxyl‐terminal subdomain of epidermal growth factor (EGF). Therefore, PP1 may interact with EGF receptor‐like molecules to trigger its different biological activities.
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DOI:
--
发表时间:
1998
期刊:
European Journal of Biochemistry
影响因子:
--
作者:
Y. Hayakawa;H. Noguchi
通讯作者:
H. Noguchi
DOI:
10.1016/s0021-9258(18)98775-2
发表时间:
1991
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
W. S. Skinner;P. A. Dennis;J. Li;R. Summerfelt;R. L. Carney;G. B. Quistad
通讯作者:
G. B. Quistad
DOI:
10.1006/bbrc.1998.9145
发表时间:
1998-09-18
影响因子:
3.1
作者:
Clark, KD;Witherell, A;Strand, MR
通讯作者:
Strand, MR
影响因子:
4.8
作者:
B. Volkman;M. Anderson;K. Clark;Y. Hayakawa;M. Strand;J. Markley
通讯作者:
J. Markley
影响因子:
3.5
作者:
Y. Hayakawa;A. Ohnishi;A. Yamanaka;S. Izumi;S. Tomino
通讯作者:
S. Tomino