Molecular weight of Nephila clavata spider silk
Molecular weight of Nephila clavata spider silk
复制标题
Nephila clavata 蜘蛛丝的分子量
DOI:
10.1038/pj.2015.10
复制
发表时间:
2015
期刊:
影响因子:
2.8
通讯作者:
Takashi Matsuhira and Shigeyoshi Osaki
中科院分区:
文献类型:
--
作者:
Shigeyoshi Osaki;Keizo Yamamoto;Takashi Matsuhira and Hiromi Sakai;大崎茂芳;大崎茂芳;大崎茂芳;Takashi Matsuhira and Shigeyoshi Osaki
The molecular weight of Nephila clavata spider silk was determined to be ca. 600 kDa, under unreduced conditions, corresponding to its natural state, using the sodium dodecyl sulfate polyacrylamide gel electrophoresis method and a protein marker with a maximum molecular weight of 500 kDa. The addition of 2-mercaptoethanol into the spider silk solution decreased the molecular weight from ca. 600 kDa to ca. 270 kDa. Such a dramatic decrease in the molecular weight was ascribed to the presence of 2-mercaptoethanol as a reductant. This finding indicates the possibility that the reduction process cleaved the disulfide bonds formed between the spider silk proteins and then drastically decreased the molecular weight from ca. 600 to ca. 270 kDa. These results suggest that N. clavata spider silk proteins might consist of two proteins with a molecular weight of ca. 270 kDa that are crosslinked by disulfide bonds and exist as a dimer of ca. 600 kDa.
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影响因子:
8.6
作者:
S. Osaki
通讯作者:
S. Osaki
影响因子:
3.4
作者:
Aitken, Colin Echeverria;Marshall, R. Andrew;Puglisi, Joseph D.
通讯作者:
Puglisi, Joseph D.
影响因子:
--
作者:
S. Osaki
通讯作者:
S. Osaki
影响因子:
--
作者:
MARSHALL, I;TODD, A
通讯作者:
TODD, A
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
松平崇;大﨑茂芳;大﨑茂芳;大﨑茂芳;大﨑茂芳;Shigeyoshi Osaki;Takashi Matsuhira & Shigeyoshi Osaki
通讯作者:
Takashi Matsuhira & Shigeyoshi Osaki