Structural and Functional Plasticity of Collagen Fibrils.
Structural and Functional Plasticity of Collagen Fibrils.
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胶原原纤维的结构和功能可塑性。
DOI:
10.1089/dna.2018.4494
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发表时间:
2019-04
影响因子:
3.1
通讯作者:
Zhang Yanjun
中科院分区:
文献类型:
--
作者:
Zhao Zilong;Li Fanjian;Guo Qi;Zhou Yuan;Miao Yuyang;Li Ying;Wang Zengguang;Jiang Rongcai;Dong Jing Fei;Liu Xiao;Zhang Jianning;Zhang Yanjun
Collagen is a major component of the subendothelial matrix and participates in bleeding arrest by activating and aggregating platelets at the site of vascular injury. The most common type I collagen exists in both soluble and fibrillar forms, but structural exchangeability between the two forms is currently unknown. Using atomic force microscopy, we show that type I collagen switches between soluble and fibrillar forms in a pH-dependent and ion-independent manner. Fibrillar collagen is rope like with characteristic "D-bands." The collagen fibrils can be disrupted with 0.1 M acetic acid and will reform when the pH is adjusted to 7.4. This structural plasticity leads to drastically different activities, with fibrillar collagen being significantly more active for platelets under static and flow conditions. More important, by probing with noncontact hopping probe ion-conductance microscopy, we find that platelets adherent to fibrillar collagen present primarily as high-density bubble shapes that have undergone rapid microvesiculation.
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DOI:
--
发表时间:
1987
期刊:
Artery
影响因子:
--
作者:
K. Murata;C. Kotake;T. Motoyama
通讯作者:
K. Murata;C. Kotake;T. Motoyama
影响因子:
14
作者:
Saeidi, Nima;Sander, Edward A.;Ruberti, Jeffrey W.
通讯作者:
Ruberti, Jeffrey W.
影响因子:
7.5
作者:
JELENSKA, MM;KOPEC, M
通讯作者:
KOPEC, M
DOI:
--
发表时间:
1988-07
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
K. Kadler;Y. Hojima;D. Prockop
通讯作者:
K. Kadler;Y. Hojima;D. Prockop
影响因子:
20.3
作者:
J. Heemskerk;W. Vuist;M. Feijge;C. Reutelingsperger;T. Lindhout
通讯作者:
J. Heemskerk;W. Vuist;M. Feijge;C. Reutelingsperger;T. Lindhout