Solid-state NMR structure determination of whole anchoring threads from the blue mussel Mytilus edulis.
Solid-state NMR structure determination of whole anchoring threads from the blue mussel Mytilus edulis.
复制标题
蓝贻贝整个锚固线的固态核磁共振结构测定。
DOI:
10.1021/bm301493u
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发表时间:
2013
影响因子:
6.2
通讯作者:
I. Marcotte
中科院分区:
文献类型:
--
作者:
A. Arnold;F. Byette;Marc;André Leblanc;L. Sleno;R. Tremblay;C. Pellerin;I. Marcotte
The molecular structure of the blue mussel Mytilus edulis whole anchoring threads was studied by two-dimensional (13)C solid-state NMR on fully labeled fibers. This unique material proves to be well ordered at a molecular level despite its heterogeneous composition as evidenced by the narrow measured linewidths below 1.5 ppm. The spectra are dominated by residues in collagen environments, as determined from chemical shift analysis, and a complete two-dimensional assignment (including minor amino acids) was possible. The best agreement between predicted and experimental backbone chemical shifts was obtained for collagen helices with torsion angles (-75°, +150°). The abundant glycine and alanine residues can be resolved in up to five different structural environments. Alanine peaks could be assigned to collagen triple-helices, β-sheets (parallel and antiparallel), β-turns, and unordered structures. The use of ATR-FTIR microscopy confirmed the presence of these structural environments and enabled their location in the core of the thread (collagen helices and antiparallel β-sheets) or its cuticle (unordered structures). The approach should enable characterization at the molecular level of a wide range of byssus macroscopic properties.
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DOI:
10.1016/j.pnmrs.2010.04.005
发表时间:
2010-08
影响因子:
6.1
作者:
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通讯作者:
Ramamoorthy, Ayyalusamy
DOI:
10.1021/jp205663z
发表时间:
2011
期刊:
The journal of physical chemistry. B
影响因子:
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作者:
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DOI:
10.1002/jez.1402400102
发表时间:
1986
期刊:
The Journal of experimental zoology
影响因子:
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作者:
Mascolo,JM;Waite,JH
通讯作者:
Waite,JH
DOI:
10.1242/jeb.205.12.1807
发表时间:
2002
期刊:
The Journal of experimental biology
影响因子:
--
作者:
Lucas,JaredM;Vaccaro,Eleonora;Waite,JHerbert
通讯作者:
Waite,JHerbert
影响因子:
15
作者:
Holland, Gregory P.;Creager, Melinda S.;Yarger, Jeffery L.
通讯作者:
Yarger, Jeffery L.